As the importance of renewable energy sources becomes more and more apparent, look to our top-quality journals for cutting-edge reports on solar cell and photovoltaic research.
In May 2007 the Institute for Scientific Information listed the Top 20 Most Cited Papers on Solar Cells, with papers published in Advanced Functional Materials number one on both lists:
Most cited paper (1997-2007):
Most cited paper (2005-2007):
Find all articles on solar cells in Wiley Online Library...
Smooth transformation: A photo-inactive thin-film material (porous, rough, polycrystalline NH4PbI3 non-perovskite) is converted stepwise to an excellent photovoltaic material (dense, smooth, textured MAPbI3 perovskite) in an methylamine-induced transformation process. The chemical origins of this transformation are studied at various length scales.
Yingxia Zong, Yuanyuan Zhou, Minggang Ju, Hector F. Garces, Amanda R. Krause, Fuxiang Ji, Guanglei Cui, Xiao Cheng Zeng, Nitin P. Padture, Shuping Pang
Angew. Chem. Int. Ed., October 21, 2016, DOI: 10.1002/anie.201609529. Read article
Insertion of a CdS layer between TiO2 and perovskite passivates the defects at the TiO2 surface, extracts electrons from perovskite more efficiently, reducing recombination at the interface of TiO2/perovskite, resulting in improved conversion efficiencies and air stability of perovskite solar cells.
Yulong Ma, Kaimo Deng, Bangkai Gu, Fengren Cao, Hao Lu, Yuexing Zhang, Liang Li
Adv. Mater. Interfaces, October 20, 2016, DOI: 10.1002/admi.201600729. Read article
The extent to which the soft structural properties of metal halide perovskites affect their optoelectronic properties is unclear. X-ray diffraction and micro-photoluminescence measurements are used to show that there is a coexistence of both tetragonal and orthorhombic phases through the low-temperature phase transition, and that cycling through this transition can lead to structural changes and enhanced optoelectronic properties.
Anna Osherov, Eline M. Hutter, Krzysztof Galkowski, Roberto Brenes, Duncan K. Maude, Robin J. Nicholas, Paulina Plochocka, Vladimir Bulović, Tom J. Savenije, Samuel D. Stranks
Adv. Mater., October 19, 2016, DOI: 10.1002/adma.201604019. Read article
An all-purpose fibrous electrode based on MoS2 that can be employed for versatile energy harvesting and storage applications, for instance, supercapacitors, dye-sensitized solar cells, Li-ion batteries, and electrocatalytic hydrogen evolution reactions, is synthesized. Moreover, based on this all-purpose fibrous electrode, a self-powering energy fiber is also fabricated, which exhibits very fast charging capability and high conversion efficiency.
Jia Liang, Guoyin Zhu, Caixing Wang, Yanrong Wang, Hongfei Zhu, Yi Hu, Hongling Lv, Renpeng Chen, Lianbo Ma, Tao Chen, Zhong Jin, Jie Liu
Adv. Energy Mater., October 17, 2016, DOI: 10.1002/aenm.201601208. Read article
Solution-processed organic solar cells with promising photovoltaic performance and extraordinary high thermal stability are achieved by employing novel fullerene-based acceptors in combination with two state-of-the-art polymer donors. The findings demonstrated in this work underline the necessity and importance of novel acceptor design rules for highly efficient organic solar cells with excellent device stability.
Chaohong Zhang, Alexander Mumyatov, Stefan Langner, José Darío Perea, Thaer Kassar, Jie Min, Lili Ke, Haiwei Chen, Kirill L. Gerasimov, Denis V. Anokhin, Dimitri A. Ivanov, Tayebeh Ameri, Andreas Osvet, Diana K. Susarova, Tobias Unruh, Ning Li, Pavel Troshin, Christoph J. Brabec
Adv. Energy Mater., October 17, 2016, DOI: 10.1002/aenm.201601204. Read article
The charge-carrier balance strategy by interface engineering is employed to optimize the charge-carrier transport in inverted planar heterojunction perovskite solar cells. N,N-Dimethylformamide-treated poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) and poly(methyl methacrylate)-modified PCBM are utilized as the hole and electron selective contacts, respectively, leading to a high power conversion efficiency of 18.72%.
Ke Chen, Qin Hu, Tanghao Liu, Lichen Zhao, Deying Luo, Jiang Wu, Yifei Zhang, Wei Zhang, Feng Liu, Thomas P. Russell, Rui Zhu, Qihuang Gong
Adv. Mater., October 17, 2016, DOI: 10.1002/adma.201604048. Read article
A robust and expedient gas quenching method is developed for the solution deposition of hybrid perovskite thin films. The method offers a reliable standard practice for the fabrication of a non-exhaustive variety of perovskites exhibiting excellent film morphology and commensurate high performance in both regular and inverted structured solar cell architectures.
Bert Conings, Aslihan Babayigit, Matthew T. Klug, Sai Bai, Nicolas Gauquelin, Nobuya Sakai, Jacob Tse-Wei Wang, Johan Verbeeck, Hans-Gerd Boyen, Henry J. Snaith
Adv. Mater., October 17, 2016, DOI: 10.1002/adma.201603747. Read article
Efficient non-fullerene organic solar cells (OSCs) are demonstrated. The complementary absorption, well-matched energy levels and optimized morphology of PBDTTS-TTffBT and di-PBI blend achievepower conversion efficiency up to 6.51%. Besides, the blend film exhibits thermal stability, retaining >80% of its initial efficiency of the devices for 120 min at 100 °C, demonstrating the efficacy of the medium band gap for non-fullerene OSCs.
Woosung Lee, Jae Woong Jung
Macromol. Chem. Phys., October 14, 2016, DOI: 10.1002/macp.201600459. Read article
Hole for whole: Semiconductor hole-transport materials (HTMs) are an essential component for perovskite solar cells. The three classes of materials available, inorganic, polymeric, and small molecule HTMS are reviewed and in particular the optoelectrical properties of molecular HTMs, which seem to be as the most effective materials.
Laura Calió, Samrana Kazim, Michael Grätzel, Shahzada Ahmad
Angew. Chem. Int. Ed., October 14, 2016, DOI: 10.1002/anie.201601757. Read article
Carbon nanostructures, particularly fullerene derivatives, possess the ability to act as radical scavengers and undergo photodimerization, consequently influencing the photochemical and morphological degradation of the active layer. These properties can be exploited to produce organic solar cells with longer operational lifetimes without compromising device efficiency and manufacturing costs.
Isabel Fraga Domínguez, Andreas Distler, Larry Lüer
Adv. Energy Mater., October 14, 2016, DOI: 10.1002/aenm.201601320. Read article
A UV-sensitive azopolymer and a visible-light-sensitive azopolymer are combined with a fluorescent dye and a filter to create a four-layer solar thermal cell with record efficiency gravimetric energy density. While most azopolymers discharge under visible irradiation, this device can use a true solar spectrum because fluorescent down-conversion enables storage of light that would otherwise cause discharging.
Andrew K. Saydjari, Philipp Weis, Si Wu
Adv. Energy Mater., October 12, 2016, DOI: 10.1002/aenm.201601622. Read article
o-Chlorobenzaldehyde (CBA) is a derivative of chlorobenzene (CB). The boiling point of CBA is 212 °C, much lower than 332 °C for 1,8-diiodooctane (DIO). With CBA as solvent additive in CB host solvent, CBA could be fast removed during spin-coating 100, 200, and 300 nm thick thieno[3,4-b]thiophene/benzodithiophene polymer (PTB7):[6,6]-phenyl C71-butyric acid methyl ester (PC71BM) active layers, achieving power conversion efficiencies of 9.11%, 8.24%, and 7.11%, respectively, much higher than 7.53%, 5.71%, and 4.93% for corresponding DIO control devices with vacuum drying.
Jinxiang Chen, Lianjie Zhang, Xiaofang Jiang, Ke Gao, Feng Liu, Xiangjun Gong, Junwu Chen, Yong Cao
Adv. Energy Mater., October 12, 2016, DOI: 10.1002/aenm.201601344. Read article
The promising quad-band solar spectral splitter incorporates the properties of the optical filter and the spectrally selective solar thermal absorber can direct PV band to PV modules and absorb thermal band energy for thermal process with low thermal losses. It provides a new strategy for spectral splitting and offers potential ways for hybrid PVT system design.
Feng Cao, Yi Huang, Lu Tang, Tianyi Sun, Svetlana V. Boriskina, Gang Chen, Zhifeng Ren
Adv. Mater., October 12, 2016, DOI: 10.1002/adma.201603113. Read article
Scanning nanofocus X-ray diffraction is used to simultaneously probe the morphology and the structural properties of spin-coated CH3NH3PbI3 perovskite films. The technique allows for perovskite grain segmentation based on a variety of structural properties and is used to understand why spin-coating the perovskite precursor solution at elevated temperature leads to improved surface coverage and enhanced solar cell performance.
Samuele Lilliu, Thomas G. Dane, Mejd Alsari, Jonathan Griffin, Alexander T. Barrows, Marcus S. Dahlem, Richard H. Friend, David G. Lidzey, J. E. Macdonald
Adv. Funct. Mater., October 12, 2016, DOI: 10.1002/adfm.201603446. Read article
A stable redox mediator: The use of a highly pre-organized hemicage hexadentate ligand for cobalt-based redox mediators in mesoscopic dye-sensitized solar cells (DSSCs) considerably improves the thermal and light stability of the new [Co(ttb)]2+/3+ over the commonly used [Co(bpy)3]2+/3+ redox couple. The performances of DSSCs sensitized with organic D–π–A dyes utilizing either [Co(ttb)]2+/3+ or [Co(bpy)3]2+/3+ are comparable under 1000 W m−2 AM 1.5 G illumination.
Marina Freitag, Wenxing Yang, Lisa A. Fredin, Luca D'Amario, K. Martin Karlsson, Anders Hagfeldt, Gerrit Boschloo
ChemPhysChem, October 11, 2016, DOI: 10.1002/cphc.201600985. Read article
Modified poly(3,4-ethylenedioxythiophene) (PEDOT) layer is developed and used as the HTL for perovskite solar cells, leading to enhanced performance. Using m-PEDOT:PSS (1:2) as the HTL and CH3NH3PbI3 as the light absorber, a Voc of 1.11 V and a power conversion efficiency of 15.56% are achieved. A Voc of 1.52 V is obtained from CH3NH3PbBr3 solar cells, which is the highest Voc for perovskite/PCBM solar cells.
Chuantian Zuo, Liming Ding
Adv. Energy Mater., October 10, 2016, DOI: 10.1002/aenm.201601193. Read article
Three groups of flexible transparent conducting oxide (TCO)-free thin film solar cells can be categorized according to their configurations: (i) front-side illuminated planar configuration; (ii) back-side illuminated planar configuration; and (iii) fiber-shaped solar cells. This article is focused on flexible TCO-free transparent conducting electrodes, including carbon nanotubes, graphene, metallic nanowires/nanotroughs, metallic grids, conducting polymers, metallic fiber, and carbon-based fibers.
Wenxi Guo, Zijie Xu, Fayin Zhang, Shuyao Xie, Hongyao Xu, Xiang Yang Liu
Adv. Funct. Mater., October 10, 2016, DOI: 10.1002/adfm.201603378. Read article
For efficient charge separation and extraction in a device, the specific characteristics of processing additives, such as high boiling points and selective solubility, provide a special opportunity to form a well phase-separated nanomorphology in a bulk-heterojunction (BHJ) film. The applications of processing additives to commercial OPVs can be further developed with respect to future demands for various BHJ materials, such as high performance, long-term stability and eco-friendly fabrication.
Sooncheol Kwon, Hongkyu Kang, Jong-Hoon Lee, Jinho Lee, Soonil Hong, Heejoo Kim, Kwanghee Lee
Adv. Energy Mater., October 07, 2016, DOI: 10.1002/aenm.201601496. Read article
The coordination effects of additives during perovskite crystal growth are investigated, and a novel technique to fabricate high-quality perovskite thin films by introduction of weak coordination additives (e.g., acetonitrile) in the precursors is demonstrated.
Liang Li, Yihua Chen, Zonghao Liu, Qi Chen, Xindong Wang, Huanping Zhou
Adv. Mater., October 06, 2016, DOI: 10.1002/adma.201603021. Read article
Mesoporous photovoltaic BiFeO3 heterojunctions are fabricated by chemical solution deposition. In these devices, mesoporous TiO2 and NiO serve as carrier transporters to enable effective collection of photocarriers from BiFeO3 absorber. The optimal device shows a highly tunable and improved photovoltaic performance with an open-circuit voltage over 1 V, which is superior to the conventional planar-structured BiFeO3 photovoltaic devices.
Lingfei Wang, He Ma, Lei Chang, Chun Ma, Guoliang Yuan, Junling Wang, Tom Wu
Small, October 05, 2016, DOI: 10.1002/smll.201602355. Read article
The molecular structure of pyridine derivatives is critical to perovskite solar cell performance, especially stability. Most of the pyridine additives easily form complexes with perovskite. A new pyridine additive with a long alkyl chain substituted at its o-position does not corrode perovskite. The stability of devices containing this additive is the highest among the investigated cells.
Youfeng Yue, NovianaTjitra Salim, Yongzhen Wu, Xudong Yang, Ashraful Islam, Wei Chen, Jian Liu, Enbin Bi, Fengxian Xie, Molang Cai, Liyuan Han
Adv. Mater., October 05, 2016, DOI: 10.1002/adma.201602822. Read article
A trilayered TiO2 photoanode on anodized nanotube array/Ti foil substrate is designed for efficient dye-sensitized solar cells. The fabricated cell exhibits a high power conversion efficiency of 8.02 % for its pronounced light harvesting and efficient charge collection.
Yang Wang, Xueqin Liu, Zhen Li, Ya Cao, Yinchang Li, Yanli Zhao
ChemNanoMat, October 04, 2016, DOI: 10.1002/cnma.201600243. Read article
The effects of the perovskite film microstructure on the charge recombination and light-soaking phenomenon are investigated in hybrid perovskite solar cells (HPSCs). It is demonstrated that interface electron traps at the grain boundaries as well as at the crystal surface dominate the light soaking effect.
Shuyan Shao, Mustapha Abdu-Aguye, Tejas S. Sherkar, Hong-Hua Fang, Sampson Adjokatse, Gert ten Brink, Bart J. Kooi, L. Jan Anton Koster, Maria Antonietta Loi
Adv. Funct. Mater., October 04, 2016, DOI: 10.1002/adfm.201602519. Read article
Cellulose in solar cells: The photostability and moisture stability of CH3NH3PbI3 solar cells is significantly improved by ethyl cellulose (EC) incorporation (see figure). The hydrogen bonds between EC and CH3NH3PbI3 stabilize the crystal structure, which accounts for the stability improvement.
Jian He, Chun-Fai Ng, King Young Wong, Weifeng Liu, Tao Chen
ChemPlusChem, September 29, 2016, DOI: 10.1002/cplu.201600415. Read article
A simple and scalable method to fabricate nano-scaled corrugations on substrate of perovskite solar cells is demonstrated. Faster chemical reaction between lead iodide and methyl ammonium iodide is observed in the corrugated devices. Optical field enhancements in the corrugated devices are confirmed with the finite-difference time-domain modeling and simulation. As a result, the perovskite solar cells fabricated on corrugated substrates show a 50% enhancement of power conversion efficiency compared to planar devices.
Yu Luo, Shuyi Liu, Nilesh Barange, Li Wang, Franky So
Small, September 27, 2016, DOI: 10.1002/smll.201601974. Read article
Highly orientated perovskite thin films (CH3NH3PbI3–xClx) are prepared by means of aquointermediate assisted one-step solution process. It demonstrates monocrystalline-like performances, e.g., extremely high preferred-orientation, stress-free inside films, longer electron lifetime, lower defect density, and faster temporal response time. The highly orientated perovskite-based solar cells allow realizing the efficiency as high as 16.9% while improving its thermal stability.
Wenzhe Li, Jiandong Fan, Yaohua Mai, Liduo Wang
Adv. Energy Mater., September 27, 2016, DOI: 10.1002/aenm.201601433. Read article
Staying on the straight and narrow: In a quasi-2D porous TiO2 the lateral electron diffusion is prevented and directional diffusion toward the collecting electrode is induced into the electron transport. As a result the electron diffusion coefficient and the collection efficiency increase while the effective surface area remains large. This leads to about 13 % improvement in the power conversion efficiency of the cell in comparison with traditional versions.
Mohammad Javadi, Saba Alizadeh, Yusef Khosravi, Yaser Abdi
ChemPhysChem, September 26, 2016, DOI: 10.1002/cphc.201600609. Read article
Charge recombination at the NiO/electrolyte interface is a performance-limiting factor that prevents dye-sensitized p-type solar cells (p-DSCs) from matching the efficiency of conventional TiO2 devices. NiO appears to catalyze the oxidation of iodide but the addition of guanidinium thiocyanate inhibits recombination (see figure). These results suggest that new redox electrolytes will be needed if tandem DSCs are to exceed the efficiency of state-of-the-art TiO2 devices.
Christopher J. Wood, Calum A. McGregor, Elizabeth A. Gibson
ChemElectroChem, September 26, 2016, DOI: 10.1002/celc.201600387. Read article
The generation efficiency of long-lived photoinduced charges in polymer: fullerene bulk heterojunctions increases dramatically as the strength of intermolecular electronic coupling in the fullerene phase improves. Ultrafast geminate recombination is suppressed when electron delocalization within fullerene clusters is strong, while the opposite is observed when delocalization within the cluster is poor.
Bryon W. Larson, Obadiah G. Reid, David C. Coffey, Stanislav M. Avdoshenko, Alexey A. Popov, Olga V. Boltalina, Steven H. Strauss, Nikos Kopidakis, Garry Rumbles
Adv. Energy Mater., September 26, 2016, DOI: 10.1002/aenm.201601427. Read article
The introduction of a bulkier phenylethylammonium cation into FAPbI3 is revealed to effectively enhance both phase and ambient stability of FAPbI3. The larger hydrophobic cation is proposed to assemble on lattice surface and grain boundaries to form quasi-3D perovskite structures, which tightens FAPbI3 domains and passivates surface defects, leading to a efficient and stable FAPbI3 based solar cell.
Nan Li, Zonglong Zhu, Chu-Chen Chueh, Hongbin Liu, Bo Peng, Alessio Petrone, Xiaosong Li, Liduo Wang, Alex K.-Y. Jen
Adv. Energy Mater., September 26, 2016, DOI: 10.1002/aenm.201601307. Read article
Perovskite material quality has a preeminent impact on hysteresis. The presented method relies on solvent engineering during the casting process, leading to a thick film that ensures an optimal interface connection with the charge-extracting layer. This method allows obtaining perovskite active layer with superior optical properties, explaining the ideal device behavior and device performances.
Vanira Trifiletti, Norberto Manfredi, Andrea Listorti, Davide Altamura, Cinzia Giannini, Silvia Colella, Giuseppe Gigli, Aurora Rizzo
Adv. Mater. Interfaces, September 26, 2016, DOI: 10.1002/admi.201600493. Read article
A synergistic effect of PbI2 passivation and chlorine incorporation induces suppression of non-radiative recombination in a perovskite film. This leads to a high open-circuit voltage exceeding 1.15 V in both mesoscopic and inverted planar CH3NH3PbI3(Cl)-based perovskite solar cells.
Fangyuan Jiang, Yaoguang Rong, Huawei Liu, Tiefeng Liu, Lin Mao, Wei Meng, Fei Qin, Youyu Jiang, Bangwu Luo, Sixing Xiong, Jinhui Tong, Yun Liu, Zaifang Li, Hongwei Han, Yinhua Zhou
Adv. Funct. Mater., September 26, 2016, DOI: 10.1002/adfm.201603968. Read article
Effective ligand engineering of Cu2ZnSnS4 (CZTS) nanocrystal surface is demonstrated to lead to improvement of the electrical properties of the thin film. Furthermore, surface-modified CZTS nanocrystals exhibit excellent hole transporting properties as the interface layer in a perovskite solar cell. The perfomance of perovskite devices is shown to vary from 12.2% to 15.4% as a function of ligand removal.
Laraib Sarfraz Khanzada, Ievgen Levchuk, Yi Hou, Hamed Azimi, Andres Osvet, Rameez Ahmad, Marco Brandl, Patrick Herre, Monica Distaso, Rainer Hock, Wolfgang Peukert, Miroslaw Batentschuk, Christoph J. Brabec
Adv. Funct. Mater., September 26, 2016, DOI: 10.1002/adfm.201603441. Read article
rGO for efficiency! The effect of incorporating reduced graphene oxide (rGO) within the electron-transport, active, and hole-transport layers of a perovskite solar cell is investigated. Incorporation of rGO into the mesoporous TiO2 matrix results in highly efficient solar cells with power conversion efficiency of up to 19.54 %.
Kyung Taek Cho, Giulia Grancini, Yonghui Lee, Dimitrios Konios, Sanghyun Paek, Emmanuel Kymakis, Mohammad Khaja Nazeeruddin
ChemSusChem, September 22, 2016, DOI: 10.1002/cssc.201601070. Read article
The unidirectional regioregular conjugated polymers using 5-fluoro-2,1,3-benzothiadiazole (FBT) asymmetric unit were synthesized. Compared with the regiorandom control polymers, the regioregular polymers with a unidirectional fluorine atom alignment can lead to a progressive dipole moment along the backbone. The regioregular FBT polymers exhibit tighter interchain stacking and better morphology in bulk heterojunction blends, giving rise to improved power conversion efficiency.
Cheng Zhou, Guichuan Zhang, Chengmei Zhong, Xiaoe Jia, Peng Luo, Rongguo Xu, Ke Gao, Xiaofang Jiang, Feng Liu, Thomas P. Russell, Fei Huang, Yong Cao
Adv. Energy Mater., September 22, 2016, DOI: 10.1002/aenm.201601081. Read article
Indium gallium nitride (InGaN) nanowire arrays (Eg ≈ 1.75 eV) are monolithically integrated on a Si solar cell through a Si tunnel junction. With such a nearly ideal energy bandgap configuration, a saturated photocurrent density of 16.3 mA cm−2 is achieved under AM1.5G one sun illumination. The applied-bias-photon-to-current efficiency reaches 8.3% at 0.5 V versus normal hydrogen electrode.
Shizhao Fan, Ishiang Shih, Zetian Mi
Adv. Energy Mater., September 22, 2016, DOI: 10.1002/aenm.201600952. Read article
Solar cells free from iodine and thiocyanate: TEMPO+/TEMPO electrolyte in combination with thiocyanate-free RuII complexes were investigated in ZnO-based dye-sensitized solar cells (DSSCs). DSSCs with bis(tridentate) RuII complexes bearing 1,2,3-triazole-derived NNN-, NCN-, and CNC-coordinating ligands (see figure) show promising power conversion and external quantum efficiencies comparable to DSSCs with iodine-based electrolytes and thiocyanate-based RuII complexes.
Ruri Agung Wahyuono, Benjamin Schulze, Mihai Rusu, Maria Wächtler, Jan Dellith, Martin Seyring, Markus Rettenmayr, Jonathan Plentz, Anna Ignaszak, Ulrich S. Schubert, Benjamin Dietzek
ChemPlusChem, September 20, 2016, DOI: 10.1002/cplu.201600377. Read article
Here, a chemical study of the impurities formed during CH3NH3I preparation and their impact on solar cell processing is reported. These impurities initiate PbHPO3 nanoparticles formation in the perovskite precursor solution, with further seed growth of grains. The detrimental role of the impurities is best demonstrated by comparing perovskite solar cell devices fabricated from impurity-free precursors versus precursors containing different concentrations of impurities.
Ievgen Levchuk, Yi Hou, Marco Gruber, Marco Brandl, Patrick Herre, Xiaofeng Tang, Florian Hoegl, Miroslaw Batentschuk, Andres Osvet, Rainer Hock, Wolfgang Peukert, Rik R. Tykwinski, Christoph J. Brabec
Adv. Mater. Interfaces, September 19, 2016, DOI: 10.1002/admi.201600593. Read article
Five polymer donors showing different molecular orientations are synthesized by carrying out random copolymerization, and their photovoltaic properties are investigated by fabricating all-polymer solar cells using a PNDI polymer acceptor. As compared with PC71BM-based devices, charge generation in the PNDI-based devices is found to be highly dependent on the orientation of the polymer donor.
Jea Woong Jo, Jae Woong Jung, Hyungju Ahn, Min Jae Ko, Alex K.-Y. Jen, Hae Jung Son
Adv. Energy Mater., September 15, 2016, DOI: 10.1002/aenm.201601365. Read article
A assessment of intermolecular interactions and their impact on electronic processes in organic solar cells is presented. While a great deal has been learned about the molecular-scale optical and electronic processes in these devices, a complete understanding of how the active-layer composition and morphology influence the charge transfer states, polarization and charge separation still needs to be reached.
Sean M. Ryno, Mahesh Kumar Ravva, Xiankai Chen, Haoyuan Li, Jean-Luc Brédas
Adv. Energy Mater., September 13, 2016, DOI: 10.1002/aenm.201601370. Read article
Fullerene derivatives play a very important role as acceptor materials in organic solar cells (OSCs), cathode buffer layer materials in OSCs and perovskite solar cells (pero-SCs). Here, a comprehensive overview of recent progresses and perspectives of functional fullerene derivatives as acceptor materials and buffer layer materials for OSCs and pero-SCs is provided.
Chaohua Cui, Yaowen Li, Yongfang Li
Adv. Energy Mater., September 13, 2016, DOI: 10.1002/aenm.201601251. Read article
The effect of the hole-transporter additive 4-tert Butylpyridine (tBP) on the device performance of perovskite solar cells is investigated. The additive is shown to improve the steady-state efficiency of perovskite solar cells independent of the hole-transport material. A direct interaction between tBP and the perovskite absorber is identified as being responsible for the observed improvement.
Severin N. Habisreutinger, Nakita K. Noel, Henry J. Snaith, Robin J. Nicholas
Adv. Energy Mater., September 08, 2016, DOI: 10.1002/aenm.201601079. Read article
In organic solar cells, a major source of energy loss is attributed to nonradiative recombination from the interfacial charge transfer states to the ground state. By taking pentacene–C60 complexes as model donor–acceptor systems, a comprehensive theoretical understanding of how molecular packing and charge delocalization impact these nonradiative recombination rates at donor–acceptor interfaces is provided.
Xian-Kai Chen, Mahesh Kumar Ravva, Hong Li, Sean M. Ryno, Jean-Luc Brédas
Adv. Energy Mater., September 05, 2016, DOI: 10.1002/aenm.201601325. Read article
The promise of coarse-grained B-γ-CsSnI3 perovskite thin films as light absorber for efficient lead-free perovskite solar cells (PSCs) is demonstrated. Benefitting from thermally-driven solid-state coarsening of B-γ-CsSnI3 perovskite grains and optimized device architecture, planar heterojunction-depleted B-γ-CsSnI3 PSCs with power conversion efficiency up to 3.31% are achieved without the use of any additives.
Ning Wang, Yuanyuan Zhou, Ming-Gang Ju, Hector F. Garces, Tao Ding, Shuping Pang, Xiao Cheng Zeng, Nitin P. Padture, Xiao Wei Sun
Adv. Energy Mater., September 02, 2016, DOI: 10.1002/aenm.201601130. Read article
Atomic layer deposition (ALD) can deposit high-quality compact thin films with good accuracy and low temperature, which may help to solve the challenges related to power conversion efficiency and stability of organometal halide perovskite solar cells. This review highlights the key developments using ALD in synthesizing basic building blocks and optimizing perovskite solar cell performances.
Kaimo Deng, Liang Li
Adv. Mater. Interfaces, September 01, 2016, DOI: 10.1002/admi.201600505. Read article
Abraham Yosipof, Klimentiy Shimanovich, Hanoch Senderowitz
Mol. Inf., August 31, 2016, DOI: 10.1002/minf.201600047. Read article
Key achievements: Polyaniline (PANI) electrodes are modified with different transition-metal ions (Ni2+, Co2+, Mn2+, and Cu2+) to improve the catalytic activity. The photovoltaic performances of dye-sensitized solar cells based on the PANI–Ni2+ and PANI–Co2+ counter electrodes (CEs) are evaluated and are found to exhibit power conversion efficiencies of 4.70 and 4.57 %, respectively, which are both higher than that of the pristine PANI CE-based device (3.87 %).
Kezhong Wu, Lei Chen, Xiaolong Sun, Mingxing Wu
ChemElectroChem, August 31, 2016, DOI: 10.1002/celc.201600326. Read article
An interfacial degradation mechanism occurring at the heterojunction between the perovskite absorber and the CuSCN is discovered, identifying the presence of a critical instability. This issue can be alleviated with the additional coating of the completed cells with a thin film of insulating layer, delivering efficient perovskite solar cells with outstanding thermal stability.
Jiewei Liu, Sandeep K. Pathak, Nobuya Sakai, Rui Sheng, Sai Bai, Zhiping Wang, Henry J. Snaith
Adv. Mater. Interfaces, August 05, 2016, DOI: 10.1002/admi.201600571. Read article
A selective performance: Photovoltaic performance of carboxyZnPc substituted with bulky semiflexible aryloxy groups at the non-peripheral positions (see structure) is clearly influenced by the steric hindrance of the substituents with respect to the semiconducting surface. Thus, regioisomers with substituents oriented towards the carboxylic acid anchoring group turn out to have lower adsorption densities, and, consequently, lower short-circuit photocurrents (Jsc) and efficiencies.
Lara Tejerina, M. Victoria Martínez-Díaz, Mohammad K. Nazeeruddin, Michael Grätzel, Tomas Torres
ChemPlusChem, July 20, 2016, DOI: 10.1002/cplu.201600325. Read article