Article
Chemistry, Multidisciplinary
Heng Yu, Hao Gong, Zhaorui Hua, Yang Zhang, Wenming Sun, Shuyan Gong, Ganglong Cui, Yang Tian, Hongbing Fu
Summary: In this study, a non-toxic indium-based organic-inorganic halide was developed by incorporating 4-phenylbenzylamine (PBA) into In3+. The hybrid halide exhibited room-temperature phosphorescent emission at 617 nm with a long lifetime decay of 290.4 ms, and its afterglow was visible to the naked eye for more than 7 s. The unique lamellar stacking of organic molecules and metal halide units contributed to the prolonged phosphorescent emission, making this material suitable for emergency lighting, information security, and other applications.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shangwei Feng, Qiuqin Huang, Shuming Yang, Zhenghuan Lin, Qidan Ling
Summary: This study introduces two metal-free 2D layered ammonium halides that promote organic room temperature phosphorescence through energy transfer, achieving full-color and even white ultra-long RTP. These doped halides can be used to create information ink and complex anti-counterfeiting and chemical sensors.
Article
Chemistry, Multidisciplinary
Yaohui Liang, Chao Xu, Huaqing Zhang, Shiying Wu, Jian-An Li, Yifan Yang, Zhu Mao, Suilian Luo, Cong Liu, Guang Shi, Fengqiang Sun, Zhenguo Chi, Bingjia Xu
Summary: Color-tunable dual-mode organic afterglow excited by UV and white light was achieved for the first time using classic aggregation-caused quenching compounds. Two luminescent systems were constructed by doping fluorescein sodium and calcein sodium into aluminum sulfate, producing persistent thermally activated delayed fluorescence and ultralong organic phosphorescence. The materials could be tuned from blue to green and then to yellow by varying the concentrations of guest compounds or the temperature. They were also used for UV- and white-light-manipulated anti-counterfeiting and preparation of elastomers with different colors of persistent luminescence.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Zhizheng Li, Shuai Cao, Yangyang Zheng, Leqian Song, Huacheng Zhang, Yanli Zhao
Summary: A room-temperature phosphorescent system composed of boric acid as the host matrix and organic phosphors as guest molecules is constructed, showing an ultralong lifetime (up to 1.85 s) and high phosphorescence quantum yield (up to 53%). The application for anti-counterfeiting encryption is demonstrated.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Deliang Wang, Junyi Gong, Yu Xiong, Hongzhuo Wu, Zheng Zhao, Dong Wang, Ben Zhong Tang
Summary: By doping organic materials with color-tunable and time-dependent long persistent luminescence, the encryption level can be improved, leading to promising applications in anti-counterfeiting.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xin Guo, Xuening Sun, Jinfeng Zhang, Yuanfen Huang, Xiaohong Liu, Xin Liu, Weilin Xu, Dongzhi Chen
Summary: Water-dispersed silicon nanocrystals with room-temperature phosphorescence have been successfully synthesized and applied in anticounterfeiting ink, showing excellent practicability.
Article
Chemistry, Physical
Kikuya Hayashi, Kei Fukasawa, Takashi Yamashita, Shuzo Hirata
Summary: In this study, we report a rational design of triplet sensitizers to achieve high-efficiency red afterglow emission at room temperature. By synthesizing sensitizer and acceptor molecules with different conjugated substituents, we found that the long conjugated substituent greatly enhanced the phosphorescence resonance energy transfer (PRET) from the sensitizer to the acceptor, resulting in improved yield of red afterglow emission at room temperature.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Tsung-Kai Su, Wei-Kai Cheng, Cheng-Yueh Chen, Wei-Chun Wang, Yung-Tang Chuang, Guang-Hsun Tan, Hao-Cheng Lin, Cheng-Hung Hou, Ching-Min Liu, Ya-Chu Chang, Jing-Jong Shyue, Kai-Chiang Wu, Hao-Wu Lin
Summary: This paper investigates lead-free cesium halide memristors that exhibit low operating voltage, high dynamic range, multilevel non-volatile storage capability, and good endurance, making them suitable for brain-inspired hardware-based neuromorphic computing.
Article
Chemistry, Multidisciplinary
Shangwei Feng, Yujuan Ma, Shuaiqi Wang, Shanshan Gao, Qiuqin Huang, Hongyu Zhen, Dongpeng Yan, Qidan Ling, Zhenghuan Lin
Summary: New types of zero-dimensional perovskites with blue room-temperature phosphorescence were obtained and found to be highly sensitive to external light and force stimuli. The quantum yield of blue phosphorescence was enhanced and high-efficiency white phosphorescence was achieved by introducing Sb3+. This work overcomes the challenges of low quantum yield and short lifetime of blue phosphorescence, providing a feasible method for achieving high-efficiency white phosphorescence.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Kailu Zheng, Xuemei Yang, Fan Ni, Zhanxiang Chen, Cheng Zhong, Chuluo Yang
Summary: Current research on ultralong room-temperature phosphorescence (RTP) materials focuses on lifetimes and efficiencies, with a high demand for tuning emission colors. This study reports three ultralong RTP molecules with tunable emission colors through isomerization engineering, showing great potential for anti-counterfeiting applications in information security.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Yifan Yang, Yaohui Liang, Yitao Zheng, Jian-An Li, Shiying Wu, Huaqing Zhang, Tepeng Huang, Suilian Luo, Cong Liu, Guang Shi, Fengqiang Sun, Zhenguo Chi, Bingjia Xu
Summary: The development of polymer-based materials with efficient and color-tunable organic afterglow is still a challenge. In this study, two indolocarbazole derivatives were synthesized and doped into poly(vinyl alcohol) matrices. The resulting films showed unique dual-mode afterglow composed of persistent thermally activated delayed fluorescence and ultralong organic phosphorescence. The films also exhibited intense blue afterglow with high performance. Inspired by these properties, the doped PVA was used as temperature-sensitive security ink for anti-counterfeiting and information encryption.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Feng Liu, Zeyu Li, Yu Li, Yiyu Feng, Wei Feng
Summary: The study found that fluorine-nitrogen co-doped carbon dots exhibit high RTP lifetime and quantum yield, mainly originating from specific electron transitions. Additionally, hydrogen bonding between carbon dots and polyvinyl alcohol matrix, as well as semi-ionic C-F bonds, can enhance the efficiency of RTP.
Article
Chemistry, Multidisciplinary
Changli Zhang, Lingyun Lou, Yuzhan Li, Chengxiang Li, Dong Wang, Hui Cao, Wanli He, Zhou Yang
Summary: A convenient and effective method to trigger and enhance the yellow room temperature phosphorescence (RTP) of small molecular weight host-guest materials by grinding and adding water is presented. The enhancement is attributed to the formation of intermolecular hydrogen-bonding networks, which effectively confine molecular motion and suppress non-radiative transitions. The doped material's unique and sensitive water response characteristics have been demonstrated for anti-counterfeiting printing and humidity detection.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Xiaokang Yao, Huifang Shi, Xiao Wang, He Wang, Qiuying Li, Yuxin Li, Jian Liang, Jingjie Li, Yixiao He, Huili Ma, Wei Huang, Zhongfu An
Summary: This study demonstrates a strategy for dynamic RTP through reversible transformation of radicals, showing excellent reversibility and repeatability, with potential applications for round-the-clock anti-counterfeiting and tag.
SCIENCE CHINA-CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Shengju Zhou, Feixiang Wang, Ning Feng, Aoxue Xu, Xiaofeng Sun, Jin Zhou, Hongguang Li
Summary: This review summarizes the important progress made in room temperature phosphorescence (RTP) carbon dots (CDs), including their synthetic strategies, performance regulation, and potential applications in anti-counterfeiting, information encryption, sensing, light-emitting diodes, and biomedicine. The remaining major challenges for RTP CDs are discussed and new opportunities in the future are proposed.
Article
Chemistry, Inorganic & Nuclear
Jian-Bin Luo, Jun-Hua Wei, Zhi-Zhong Zhang, Dai-Bin Kuang
Summary: Researchers synthesized a new type of lead-free organic-inorganic metal halide material with broadband emission and reversible emission transformation, making it a potential water sensing material.
INORGANIC CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Jin-Feng Liao, Zhipeng Zhang, Jun-Hua Wei, Zhi-Zhong Zhang, Bingzhe Wang, Lei Zhou, Guichuan Xing, Zikang Tang, Dai-Bin Kuang
Summary: This study reports a color-tunable phosphor with multiple emissive materials, which can be used in various applications. The phosphor shows high luminescent efficiency and stability, and can emit different colors of light by adjusting the composition, excitation wavelength, temperature, or time gating. It is further applied in multifunctional applications such as luminescent radiometric thermometer, white light emitter, and high-security anti-counterfeit materials.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xin Yang, Yu-Hua Huang, Xu-Dong Wang, Wen-Guang Li, Dai-Bin Kuang
Summary: In this study, A-site cation engineering was used to regulate the ionic migration and carrier transport capacity of low-dimensional bismuth-based hybrid perovskites. The use of BZA and 3-AMP improved the charge transport performance by reducing the distance between adjacent Bi-I octahedrons.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Jun-Hua Wei, Yong-Wei Yu, Jian-Bin Luo, Zhi-Zhong Zhang, Dai-Bin Kuang
Summary: This study reports a multifunctional luminescent material (AEP)(2)Cu2I6 center dot 2I center dot 2H(2)O, which exhibits high photoluminescence quantum yield and responds to multiple excitation sources. The material demonstrates a high light yield and excellent attenuation capability for X-ray, making it suitable for applications in anti-counterfeiting, solid-state lighting devices, and digital radiography.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Hai-Bing Zhao, Jin-Feng Liao, Yuan Teng, Hong-Yan Chen, Dai-Bin Kuang
Summary: This study explores copper-based halide perovskite CsCuCl3 and CsCuCl2Br as catalysts for photocatalytic CO2 reduction. The results show that these perovskites have excellent photoelectric properties and can efficiently consume electrons in the process of CO2 reduction.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Zhi-Zhong Zhang, Jun-Hua Wei, Jian-Bin Luo, Xu-Dong Wang, Zi-Lin He, Dai-Bin Kuang
Summary: A single crystal scintillator, TEA2MnI4, with high transmittance and light yield has been successfully prepared using a local-heating solvent evaporation method. It shows potential for high-resolution X-ray imaging.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Jian-Bin Luo, Jun-Hua Wei, Zhi-Zhong Zhang, Zi-Lin He, Dai-Bin Kuang
Summary: This paper reports a new organic-inorganic metal halide luminescent glass with over 78% transmittance and a high photoluminescence quantum yield of 28.5%. The glass-crystal interconversion process and the disordered nature of the glassy state were investigated through temperature-dependent X-ray diffraction, polarizing microscopy, and molecular dynamics simulations. The outstanding optical properties and facility of large-scale fabrication make the organic-inorganic metal halide glass a highly promising class of materials for optical devices.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Zi-Lin He, Jun-Hua Wei, Jian-Bin Luo, Zhi-Zhong Zhang, Dai-Bin Kuang
Summary: The flexibility of organic-inorganic hybrid metal halides (OIMHs) provides unique properties. Stimuli-responsive materials have wide applications in thermal imaging, thermometry, and anti-counterfeiting. In this study, Mn(ii)-based OIMHs(TMS)(2)MnBr4 (TMS = trimethylsulfonium) were prepared using a simple dry ball-milled method. The obtained powders exhibited phase transition and emission switching, and the photoluminescence (PL) switching could be achieved by touching the (TMS)(2)MnBr4 powders, indicating their potential in portable thermosensitive devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Wen-Guang Li, Xu-Dong Wang, Yu-Hua Huang, Dai-Bin Kuang
Summary: In recent years, halide perovskites have shown great potential in X-ray detection due to their excellent optoelectronic properties and high X-ray attenuation coefficient. However, large-scale perovskite production for high-performance X-ray detectors is still very challenging. In this study, a combination of ultrasound-assisted crystallization and hot-pressing method is used to prepare a large-area and high-quality quasi-monocrystalline thick film of a mixed-cation perovskite MA(0.42)FA(0.58)PbI(3). This approach provides a more uniform nucleation and fusion of crystal boundaries, resulting in a quasi-monocrystalline film with improved carrier mobility and sensitivity. This research demonstrates the potential of the ultrasound-assisted crystallization and hot-pressing strategy for industrial applications in X-ray detection.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Zi-Lin He, Jun-Hua Wei, Zhi-Zhong Zhang, Jian-Bin Luo, Dai-Bin Kuang
Summary: In this study, three large centimeter-sized (2-DMAP)(2)MnX4 (2-DMAP(+) = 2-dimethylaminopyridinium, X = Cl, Br, I) single crystals with high quality were successfully synthesized via the solvent evaporation method. Among them, (2-DMAP)(2)MnBr4 exhibits high transparency and remarkable luminescent properties, achieving a high X-ray light yield, low limit of detection, and excellent X-ray imaging spatial resolution. Furthermore, the thickness of the single crystal can be easily regulated through a simple solution post-treatment method, which significantly influences the transmittance, spatial imaging resolution, and detection limit. This work presents a promising single-crystal scintillator for high-resolution X-ray imaging with low preparation cost and tunable thickness.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Engineering, Environmental
Min Yang, Xingwang Zhu, Zi Zhu, Haiyan Zhang, Dai-Bin Kuang, Youji Li
Summary: This study proposes an atomic activation method to design a flower-like NiAl-LDH/CeO2 hybrid heterojunction for selective CH4 photosynthesis. The electrons in the NiAl-LDH nanosheets spontaneously migrate to CeO2, forming an internal electric field that drives S-scheme charge transfer upon visible-light illumination. Additionally, the decorated CeO2 nanoparticles optimize the electronic structure and activate the originally inert Ni and Al atoms on NiAl-LDH, serving as potential active centrals. As a result, the NiAl-LDH/CeO2 heterojunction exhibits higher CH4 yield rate and selectivity compared to pristine NiAl-LDH and CeO2 materials. This work highlights an atomic activation technique for LDH-based heterogeneous photocatalysts, providing a new vision for developing efficient hybrid material systems for CO2 conversion applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Hai-Bing Zhao, Jia-Nan Huang, Qi Qin, Hong-Yan Chen, Dai-Bin Kuang
Summary: A CsCuCl3/Cu nanocrystals heterojunction catalyst was synthesized through a facile acid-etching solution process, which exhibited excellent charge separation efficiency and improved CO2 adsorption and activation, leading to high electron consumption rate and CH4 selectivity.
Article
Materials Science, Multidisciplinary
Xiu-Xian Guo, Jun-Hua Wei, Jian-Bin Luo, Zi-Lin He, Zhi-Zhong Zhang, Jing-Hua Chen, Dai-Bin Kuang
Summary: This study reports the synthesis and tunable emission of Sb3+-Ln(3+)-codoped Cs2NaYCl6 single crystals, which exhibit bright white-light emission with high photoluminescence quantum yield. Energy transfer from Sb3+-induced self-trapped excitons to Ln(3+) ions is revealed through spectral analysis. Temperature-dependent photoluminescence spectra demonstrate the potential of this material in ratiometric optical thermometry.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yu-Hua Huang, Xu-Dong Wang, Wen-Guang Li, Su-Yan Zou, Xin Yang, Dai-Bin Kuang
Summary: This study optimizes the band structure of low-dimensional perovskites by engineering the organic cations, leading to improved stability and optoelectronic performance. The band alignment between the organic cations and inorganic anions facilitates the separation of photogenerated carriers, while the shorter distance between molecules promotes carrier transfer.
Article
Chemistry, Physical
Jia-Nan Huang, Yu-Jie Dong, Hai-Bing Zhao, Hong-Yan Chen, Dai-Bin Kuang, Cheng-Yong Su
Summary: A ternary hybrid material featuring high CsPbBr3 nanocrystal loading, fast charge separation, and good CO2 uptake is designed and fabricated. By extracting photogenerated electrons to gold nanoparticles, charge recombination is effectively inhibited and CO2 reduction is accelerated.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)