Organic-Inorganic Hybrid Perovskite Single Crystals: Crystallization, Molecular Structures, and Bandgap Engineering

Organic-inorganic hybrid perovskite single crystal has attracted much attention due to its unique electronic property. In this review, the recent progress of the single crystal growth methods, molecular structures and bandgap engineering of the organic-inorganic hybrid perovskite single crystals is introduced.


Tiantian Zuo, Dr. Xuexia He, Dr. Peng Hu, Dr. Hui Jiang


Recent Advancements in and the Future of Organic Emitters: TADF- and RTP-Active Multifunctional Organic Materials

Putting it out there: In this Minireview, recent advances in the research of organic emitters that irradiate room-temperature phosphorescence and/or thermally activated delayed fluorescence with unique luminescence properties, such as aggregation-induced emission, mechanochromic luminescence, and circularly polarized luminescence, are discussed.


Prof. Dr. Przemyslaw Data, Prof. Dr. Youhei Takeda


Aggregation-Induced Emission for Visualization in Materials Science

Taking a look: Fluorescent imaging techniques have attracted much attention as a powerful tool to realize the visualization of structural and morphological evolution of various materials. Aggregation-induced emission (AIE) molecules with high quantum yields in the condensed state showed great opportunities for imaging techniques. In this feature article, recent progresses in visualization with AIE molecules are discussed.


Kaitao Li, Prof. Dr. Yanjun Lin, Prof. Dr. Chao Lu


Exploring Potential Energy Surfaces for Aggregation-Induced Emission—From Solution to Crystal

Emission in aggregate: Theory has been important to understand aggregation-induced emission. This review focuses on potential energy surface studies and the restricted access to a conical intersection model. It discusses the complementarities with the restriction of intramolecular motion model and Fermi golden rule based calculations. The role of intermolecular interactions is also highlighted.


Dr. Rachel Crespo-Otero, Prof. Quansong Li, Prof. Lluís Blancafort


Molecular Links and Knots from Naphthalenediimide: A Balance of Weak Interactions

The World is Knot Enough: Owing to its unique structural, electronic, spectroscopic, and redox properties, naphthalenediimide (NDI) is a versatile building block for the construction of a wide variety of supramolecular assemblies with diverse structures, properties, and functions. In this Focus Review, the synthesis of topologically nontrivial molecular links and knots based on naphthalenediimide-derived building blocks will be discussed.


Antony Wing Hung Ng, Dr. Ho Yu Au-Yeung


Stability Challenges for Perovskite Solar Cells

On stable ground: Perovskite solar cells, as the third generation of solar cells, possess many advantages. However, stability issues, such as moisture, oxygen and ion migration, constrain further development of this technique. This review summarizes the challenges and potential solutions for these issues.

[Focus Review]

Rui Fu, Wenke Zhou, Qi Li, Yao Zhao, Prof. Dapeng Yu, Prof. Qing Zhao


AIEgens/Nucleic Acid Nanostructures for Bioanalytical Applications

Next-gen: DNA occupies significant roles in life processes that include encoding the sequences of proteins and accurately transferring genetic information from generation to generation. Herein, the recent progress in bioanalytical applications on the basis of AIEgens/nucleic acid nanostructures, which take advantage of the aggregation-induced emission (AIE) properties of fluorogens, are presented and discussed.


Dr. Xudong Wang, Min Xu, Prof. Kaixun Huang, Prof. Xiaoding Lou, Prof. Fan Xia


Molecular Design, Circularly Polarized Luminescence, and Helical Self-Assembly of Chiral Aggregation-Induced Emission Molecules

Lighting up the helix: When aggregation-induced emission luminogens (AIEgens) are combined with chirality they generate diverse novel luminescent nano/micro architectures with desirable optical properties. In this review, recent work in this research area is summarized, focusing on the molecular design, circularly polarized luminescence properties, and helical self-assembly behavior of AIEgens.

[Focus Review]

Prof. Hongkun Li, Prof. Bing Shi Li, Prof. Ben Zhong Tang


All-Inorganic Perovskite Nanocrystals-based Light Emitting Diodes and Solar Cells

All-inorganic perovskite nanocrystals (NCs) have attracted much attention in recent years due to their long stability, spectral tunability, suitable bandgap, long carrier diffusion length and high photoluminescence quantum yield. Their excellent optical properties and stability make them suitable candidates for optoelectronic devices. In this review, we provide an up-to-date review on the synthesis of all-inorganic NCs and their applications in light emitting diodes and solar cells. Finally, challenges and possible developing directions of all-inorganic NCs are discussed.

[Focus Review]

Bin Du, Prof. Yingdong Xia, Dr. Qi Wei, Prof. Guichuan Xing, Prof. Yonghua Chen, Prof. Wei Huang


Multifunctional Copper-Based Quaternary Chalcogenide Semiconductors Toward State-of-the-Art Energy Applications

Quaternary chalcogenide semiconductor materials have been of high interest owing to their effective photovoltaic applications. In recent time, many other quaternary chalcogenide semiconductor materials have emerged. In this present review article, newly developed, multifunctional Cu-based quaternary chalcogenides, their interesting chemical, optical, electric, and photocatalytic properties have been discussed and their implementation in various state-of-the-art applications has been reviewed.

[Focus Review]

Priya Kush, Sasanka Deka