Article
Chemistry, Multidisciplinary
Letian Xu, Hao Liu, Xiaoluo Peng, Pingchuan Shen, Ben Zhong Tang, Zujin Zhao
Summary: Researchers have developed near ultraviolet circularly polarized luminescent materials with high photoluminescence quantum yields and good circular polarization dissymmetry factors, which can induce circularly polarized electroluminescence from blue to red for achiral materials. By using these materials as emitters, they achieve strong near ultraviolet circularly polarized electroluminescence with the best external quantum efficiencies (eta(ext)s) of 9.0% and small efficiency roll-offs in organic light-emitting diodes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Inorganic & Nuclear
Shijie Yang, Shuming Zhang, Fengqing Hu, Jinsong Han, Fei Li
Summary: Circularly polarized luminescence (CPL) materials have gained attention for their unique optical activity and find applications in OLEDs, chiral sensing, and information encryption. CPL-active polymers, with their scalability, flexibility, and film-forming properties, show promising potential. This review focuses on the development of CPL-active polymers, including chiral side chain polymers, chiral main chain polymers, chiral coordination polymers, and chiral induction systems involving polymers. Recent applications of CPL-active polymers are highlighted to emphasize their realistic significance.
COORDINATION CHEMISTRY REVIEWS
(2023)
Review
Chemistry, Inorganic & Nuclear
Xin-Yu Luo, Mei Pan
Summary: Chirality is a common feature in nature, and circularly polarized luminescence (CPL) is an important characteristic of some chiral luminescent systems. Chiral metal-organic materials (MOMs) have gained significance due to their combination of metal centers and organic ligands. These materials offer potential in designing novel structures and applications.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Xue Bai, Yimeng Sun, Yuqian Jiang, Guangjiu Zhao, Jian Jiang, Chenhuan Yuan, Minghua Liu
Summary: The study reported naphthalene derivatives substituted with chiral branched alkyl chains, with circular dichroism (CD) and circularly polarized luminescence (CPL) only observed for enantiomeric Nap2 when in liquid form at room temperature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Meng Li, Mei-Ying Wang, Yin-Feng Wang, Liheng Feng, Chuan-Feng Chen
Summary: Fluorescent enantiomers suitable for high-efficiency TADF-sensitized CP-OLEDs have been developed, exhibiting high PLQY, large kr values, and excellent performance characteristics. The resulting TADF-sensitized fluorescent devices show high EQE and low efficiency roll-off, providing a promising perspective for breaking through the EL efficiency limit of CP-FL emitters.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Lirong Jiang, Mengmeng Jing, Bing Yin, Wenjun Du, Xiaojian Wang, Ying Liu, Shuang Chen, Manzhou Zhu
Summary: Metal nanoclusters are used as electrochemiluminescent luminophores due to their electrochemical and optical properties. In this study, chiral Au9Ag4 metal nanocluster enantiomers were integrated with optical activity and electrochemiluminescence, resulting in circularly polarized electrochemiluminescence. The enantiomers exhibited chirality and bright-red emission, and showed mirror-imaged CPECL signals at 805 nm. The nanocluster CPECL platform can be used for chiral discrimination and local chirality detection with high sensitivity and contrast.
Article
Nanoscience & Nanotechnology
Longyan Zhang, Yishan Jin, Yike Wang, Wenjing Li, Zhenli Guo, Jingyu Zhang, Li Yuan, Chao Zheng, Youxuan Zheng, Runfeng Chen
Summary: This study presents a simple and universal approach to design efficient CPL organic afterglow materials by incorporating chiral chromophores into a nonconjugated clusterization-triggered emissive polymer and using aggregation engineering. High-performance CPL organic afterglow polymers with impressive figures-of-merit were achieved at room temperature, demonstrating potential applications in anticounterfeiting and reversible displays.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Hao Chen, Zhi-Gang Gu, Jian Zhang
Summary: In this study, ultrathin chirCOFs NS with strong and tunable CPL were prepared using a chiral induced-synthesis strategy. The chirCOFs/Dyes showed strong chirality and increased and tunable photoluminescence, exhibiting excellent, tunable, and amplified CPL performance. The corresponding chirCOFs NS were dispersed into a PDMS matrix to form transparent, large size, and flexible COFs/PDMS films for practical CPL application.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Zhong-Qiu Li, Zhong-Liang Gong, Jiang-Yang Shao, Jiannian Yao, Yu-Wu Zhong
Summary: This paper proposes a simple method for in situ preparation of circularly polarized luminescence (CPL)-active microcrystals, which achieves control of luminescence dissymmetry through hydrogen bonding interactions between molecules, allowing for tunable emission colors, ordered morphology, and high luminescence efficiency.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Kuo Fu, Guofeng Liu
Summary: Metal-organic supramolecular polymers with multicolor circularly polarized luminescence and handedness inversion were successfully constructed by modulating the treatment modes, solvents, and metal ions.
CHEMICAL COMMUNICATIONS
(2023)
Review
Chemistry, Multidisciplinary
Lucas Frederic, Alaric Desmarchelier, Ludovic Favereau, Gregory Pieters
Summary: The development of efficient CP-Organic Light-Emitting Diodes (CP-OLEDs) through the design of fluorophores merging circularly polarized (CP) luminescence and thermally activated delayed fluorescence (TADF) properties is a promising direction. This progress report provides an overview of molecular designs explored to obtain CP-TADF properties, their performance as chiral emitters in CP-OLEDs, and the future challenges in this emerging research field.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Applied
Minglin Shi, Xiaoyong Chang, Wei Lu
Summary: A series of planar chiral macrocyclic compounds derived from [2.2]-paracyclophane scaffold and helicenes were synthesized and found to exhibit efficient circularly polarized emission. These compounds and helicenes were used as activators in peroxyoxalate chemiluminescence. Compound 2R, which contained electron-donating dimethylamino groups and had the lowest oxidation potential, showed the highest chemiluminescence quantum yield of 0.21% (higher than 0.17% for 9,10-diphenylanthracene at a concentration of 1.0 x 10-4 mol dm-3). Significant circularly polarized chemiluminescence with dissymmetry factors (|gCL|) ranging from 1.4 x 10-3 to 5.4 x 10-3 was observed for these chiral chemiluminescent activators.
Article
Nanoscience & Nanotechnology
Huilin He, Mengjia Cen, Jiawei Wang, Yiwei Xu, Jianxun Liu, Wenfeng Cai, Delai Kong, Ke Li, Dan Luo, Tun Cao, Yan Jun Liu
Summary: This study demonstrates strong upconverted circularly polarized luminescence in achiral nanomaterials through plasmonic chiral metasurface-induced optical chirality transfer. By spin-coating core-shell upconversion nanoparticles (UCNPs) on the chiral metasurface, enhanced upconversion luminescence and circular polarization modulation can be achieved.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Huilin He, Mengjia Cen, Jiawei Wang, Yiwei Xu, Jianxun Liu, Wenfeng Cai, Delai Kong, Ke Li, Dan Luo, Tun Cao, Yan Jun Liu
Summary: Strong upconverted circularly polarized luminescence can be achieved from achiral core-shell upconversion nanoparticles (UCNPs) via plasmonic chiral metasurface-induced optical chirality transfer. In the UCNPs-on-metasurface composite, significant enhancement and circular polarization modulation of upconversion luminescence can be achieved, paving new pathways to potential applications in imaging, sensing, and anticounterfeiting fields.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
Zijian Gu, Wenyue Ma, Jun Feng, Zhaoyang Liu, Bin Xu, Wenjing Tian
Summary: Enhanced circularly polarized emission can be achieved by increasing the dissymmetry factor of luminous nanostructures through changing the solvent composition. This has great significance for the fabrication of chiroptical organic nanomaterials.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Boyan Liu, Xin Wang, Yingjuan Zhang, Liangcheng Xu, Tingsheng Wang, Xiong Xiao, Songcan Wang, Lianzhou Wang, Wei Huang
Summary: To address the sluggish oxygen evolution kinetics of bismuth vanadate (BiVO4) photoanodes, a vanadium oxide (VOx) with enriched oxygen vacancies was grown on BiVO4 photoanodes using a photo-assisted electrodeposition process. The optimized BiVO4/VOx photoanode showed a significantly enhanced photocurrent density of 6.29 mA cm(-2) at 1.23 V, which was 385% higher compared to the pristine counterpart. The presence of oxygen vacancies in VOx improved the adsorption of water molecules and promoted charge transfer during the oxygen evolution reaction, resulting in excellent photoelectrochemical (PEC) water splitting performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Rongxiu Zhai, Bin Fang, Yaqi Lai, Bo Peng, Hua Bai, Xiaowang Liu, Lin Li, Wei Huang
Summary: Mitochondria play an essential role in the development of diseases and cellular metabolism disorders. Super-resolution imaging is crucial for studying the ultrafine structures and functions of mitochondria. Small-molecule fluorogenic probes have unique properties that make them ideal for super-resolution imaging of mitochondria. This paper summarizes recent advances in small-molecule fluorogenic probes, focusing on their chemical and spectroscopic properties for mitochondrial imaging. Future challenges in this field, including the design principles of small-molecule fluorogenic probes and nanoscopic techniques, are also discussed.
CHEMICAL SOCIETY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Longtao Ma, Shengmei Chen, Wenhao Yan, Guobin Zhang, Yiran Ying, Haitao Huang, Derek Ho, Wei Huang, Chunyi Zhi
Summary: Air pollution caused by nitrogen oxides (NO2) from exhaust gas is a long-standing problem that requires new capture and abatement technologies. Electrochemical conversion of NO2 to value-added chemicals is a promising strategy for mitigating imbalances in the global nitrogen cycle. We propose an electrochemical cell based on an aqueous Zn||NO2 system with a nano-NiO catalyst. The cell efficiently captures and converts NO2 to NO2- and value-added NH3 while generating electric power.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jiawei Liu, Yanwei Xiong, Yicong Gao, Xingpeng Xu, Kai Chen, Qingming Shen, Wei Huang, Quli Fan, Qi Wang
Summary: This work presents the design of high-performance NIR-II phototheranostic agents using molecular oligomerization and donor engineering strategies. Water-soluble nanoparticles with enhanced optical and thermal properties were prepared and showed promising application in NIR-II imaging-guided in vivo photothermal therapy.
Article
Multidisciplinary Sciences
Xiao Zhang, Mingjian Zeng, Yewen Zhang, Chenyu Zhang, Zhisheng Gao, Fei He, Xudong Xue, Huanhuan Li, Ping Li, Gaozhan Xie, Hui Li, Xin Zhang, Ningning Guo, He Cheng, Ansheng Luo, Wei Zhao, Yizhou Zhang, Ye Tao, Runfeng Chen, Wei Huang
Summary: The development of organic afterglow materials with sufficient color purity and high quantum efficiency for hyperafterglow is a great challenge. Here, the authors demonstrate an efficient strategy to achieve hyperafterglow emission through sensitizing and stabilizing isolated fluorescence chromophores by integrating multiresonance fluorescence chromophores into afterglow host in a singlecomponent copolymer.
NATURE COMMUNICATIONS
(2023)
Article
Multidisciplinary Sciences
Juan Wei, Chenyuan Liu, Jiayu Duan, Aiwen Shao, Jinlu Li, Jiangang Li, Wenjie Gu, Zixian Li, Shujuan Liu, Yun Ma, Wei Huang, Qiang Zhao
Summary: In this study, a series of organic room-temperature phosphorescent (RTP) polymers with tunable color luminescence were prepared by incorporating phosphorescent rotors into polymer backbones. Experimental and theoretical calculations revealed that the various molecular conformations of the monomers are responsible for the excitation wavelength-dependent (Ex-De) RTP behavior. By gaining insights into the underlying mechanism, dynamic control of Ex-De RTP behavior was achieved through thermal energy driven molecular rotations of the monomers. These findings provide new opportunities for controlling the response behaviors of smart-responsive RTP materials through external stimuli rather than conventional covalent modification methods.
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Laiyuan Wang, Tao Zhang, Junhao Shen, Jin Huang, Wen Li, Wei Shi, Wei Huang, Mingdong Yi
Summary: In this study, a two-stage transistor platform with light-regulated ambipolar memory characteristics was designed, which can implement brain-inspired learning-memory functions. An advanced synapse array was further developed based on the flexible optoelectronic signals of the devices. The mutual regulation of excitation and inhibition was investigated, and the stability of overall neural activity was ensured. The flexible optoelectronic platform achieved high classification accuracy in artificial neural network simulations.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Xi Xu, Junjie Du, Qinghe Cao, Danwei Zhang, Chen Li, Gangwen Fu, Yong Gao, Jiayu Yang, Cao Guan, Wei Huang
Summary: The key to utilizing graphene for large-scale industrial applications lies in the 3D construction of 2D sheets. By using a layer-by-layer approach in additive manufacturing, 3D graphene structures with excellent mechanical flexibility can be fabricated. The demonstrated 3D nitrogen-doped graphene (NG) foams, created via 3D printed templates and template-directed chemical vapor deposition, exhibit exceptional mechanical and functional properties, including super-elasticity, low density, fast charge carrier transport, and temperature-invariant reversible elasticity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Gege Yang, Wenhan Yang, Hao Gu, Ying Fu, Bin Wang, Hairui Cai, Junmin Xia, Nan Zhang, Chao Liang, Guichuan Xing, Shengchun Yang, Yiwang Chen, Wei Huang
Summary: In this article, the development and application of metal halide hybrid perovskite solar cells in photo-electrochemical devices are reviewed. The representative configurations of self-driven integrated devices and the advanced progresses in this field are highlighted. The existing challenges and future perspectives for ongoing research are also discussed.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiaxiao Yuan, Xiaomin Zhang, Dawei Zhou, Feixiang Ge, Jingxian Zhong, Sihan Zhao, Zhenwei Ou, Guixiang Zhan, Xu Zhang, Congzhou Li, Jin Tang, Qi Bai, Junran Zhang, Chao Zhu, Ti Wang, Longfei Ruan, Chongqin Zhu, Xuefen Song, Wei Huang, Lin Wang
Summary: Inorganic perovskite nanosheets (Cs3Bi2I9, Cs3Sb2I9) are synthesized at the liquid-air interface by drop-casting the precursor solution with the addition of iodine. The thickness and lateral size of the nanosheets can be adjusted through the iodine concentration. The iodine repairs iodine vacancies during perovskite growth, resulting in enhanced optical and optoelectronic properties. The liquid-air interfacial growth of ultrathin perovskites provides flexibility for constructing perovskite-based heterostructures and devices at the atomic scale.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Huanhuan Li, Xudong Xue, Yang Cao, He Cheng, Ansheng Luo, Ningning Guo, Hui Li, Gaozhan Xie, Ye Tao, Runfeng Chen, Wei Huang
Summary: We have successfully achieved photoactivated afterglow emission in a variety of amorphous copolymers through self-doping and polymer rigidification. By regulating the oxygen concentration, the afterglow lifetimes can be increased significantly. Moreover, programmable and reusable afterglow patterns and pulse-width indicators have been established using these stimuli-responsive afterglow polymers. These findings provide a new approach to construct single-component polymeric systems with photoactivated organic afterglow features and demonstrate the superiority of stimuli-responsive materials for remarkable applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Letter
Chemistry, Multidisciplinary
Wei Hui, Xinxin Kang, Baohua Wang, Deli Li, Zhenhuang Su, Yaqi Bao, Lei Gu, Biao Zhang, Xingyu Gao, Lin Song, Wei Huang
Summary: Due to their low cost and simplified production process, electron-transport layer-free (ETL-free) perovskite solar cells (PSCs) have attracted great attention recently. However, the performance of ETL-free PSCs is still at a disadvantage compared to cells with a conventional n-i-p structure due to the severe recombination of charge carriers at the perovskite/anode interface. In this study, a strategy was reported to fabricate stable ETL-free FAPbI3 PSCs by in situ formation of a low dimensional perovskite layer between the FTO and the perovskite. This interlayer improves energy level alignment between the anode and perovskite, facilitates charge carrier transport and collection, and suppresses charge carrier recombination, leading to ETL-free PSCs with a power conversion efficiency (PCE) exceeding 22% under ambient conditions.
Article
Materials Science, Multidisciplinary
Kai Chang, Boyang Yu, Linna Liu, Dong Fang, Xinyan Zhao, Baoxiu Mi, Wei Huang, Weiwei Deng
Summary: This work addresses two key challenges toward fully-sprayed organic solar cells (OSCs): the printing of a high-quality photoactive layer free of coffee rings and the spray of the top electrode without the need of evaporation nor solvents. By depositing the photoactive layer using electrospray on a cooled substrate, coffee rings are eliminated, resulting in homogeneous films and improved performance. A spray-printed alloy electrode with a melting point of 62 degrees C is optimized for coverage and film thickness. The fully-sprayed OSCs achieve a power conversion efficiency (PCE) of 15.09%, showing a viable route towards high-performance fully-sprayed OSCs.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Lubing Bai, Yahui Zhang, Yamin Han, Shengjie Wang, Zhiqiang Zhuo, Yingying Zheng, Mengyuan Li, Wenyu Chen, Ningning Yu, Lili Sun, Xiang An, Bin Liu, Qi Wei, Jinyi Lin, Wei Huang
Summary: In this study, blue polymer light-emitting diodes (PLEDs) were processed using a bio-based solvent of limonene by introducing methyl to the benzene groups of polydiarylfluorene-based polymer. The fabricated PLEDs exhibited satisfactory morphology and remarkable photophysical performances, and the devices fabricated with spin-coated films showed higher external quantum efficiency and better spectra repeatability.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Kaichuan Wen, Yu Cao, Lianghui Gu, Saixue Wang, Dongmin Qian, Jingmin Wang, Zhiyuan Kuang, Mengyi Luo, Gang Wang, Shuzhen Guan, Mengmeng Li, Heng Yang, Guichuan Xing, Nana Wang, Lin Zhu, Qiming Peng, Wei Huang, Jianpu Wang
Summary: Continuous-wave lasing is achieved in an efficient perovskite LED with an integrated distributed feedback resonator, showing a low threshold at low temperature. The LED functions well even at high current density, suggesting the potential realization of electrically pumped perovskite laser diodes.
ADVANCED MATERIALS
(2023)
