Review
Chemistry, Multidisciplinary
Xi Yan, Hao Peng, Yuan Xiang, Juan Wang, Lan Yu, Ye Tao, Huanhuan Li, Wei Huang, Runfeng Chen
Summary: Research focus in the field of organic electronics is currently on the design and characterization of purely organic room-temperature phosphorescent (RTP) materials. Host-guest material systems, with the ability to control and modulate properties, are promising candidates for high-performance RTP materials with diverse applications.
Article
Engineering, Environmental
Xueqiang Chen, Wenbo Dai, Xinghui Wu, Han Su, Cong Chao, Yunxiang Lei, Jianbing Shi, Bin Tong, Zhengxu Cai, Yuping Dong
Summary: This study successfully designed and synthesized a new class of highly efficient organic room-temperature phosphorescence materials through a host-guest doping strategy. The materials exhibited long lifetime and high phosphorescence quantum efficiency, and showed potential applications in information encryption and decryption.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Dan Wang, Yufeng Xie, Xinghui Wu, Yunxiang Lei, Yunbing Zhou, Zhengxu Cai, Miaochang Liu, Huayue Wu, Xiaobo Huang, Yuping Dong
Summary: A series of organic host-guest materials with multifunctional luminescence were constructed, exhibiting three-color emission switching among cyan, white, and orange. The materials could be used as writable inks for advanced anticounterfeiting.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
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, Physical
Yunxiang Lei, Wenbo Dai, Gengchen Li, Yongfeng Zhang, Xiaobo Huang, Zhengxu Cai, Yuping Dong
Summary: Small molecular host-guest doped materials have advantages in high-efficiency room-temperature phosphorescence (RTP) due to their diverse structural design and easy preparation. Dynamic RTP materials show excellent characteristics, such as reversibility, quick response, and tunable luminescence ability, making them applicable in cutting-edge technologies. This Perspective summarizes the advances in host-guest doped dynamic RTP materials that respond to external and internal stimuli and provides insights into molecular design strategies and mechanisms. It is highly beneficial for the future intelligent applications of dynamic RTP systems.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Engineering, Environmental
Zhen Zhang, Yu-e Shi, Yibo Liu, Yifei Xing, Ding Yi, Zhenguang Wang, Dongpeng Yan
Summary: This study successfully developed efficient and stable deep-blue phosphorescent materials through a heat treatment method and proposed an energy transfer and rigidification mechanism to explain their high emission lifetime and efficiency. These materials demonstrated excellent stability in various harsh environments and can be used for multi-level information encryption.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Justina Jovaisaite, Sven Kirschner, Steponas Raisys, Gediminas Kreiza, Paulius Baronas, Saulius Jursenas, Matthias Wagner
Summary: Organic ultralong room temperature phosphorescence is a unique phenomenon that has gained widespread attention due to its potential applications and fundamental interest. This study demonstrates the use of two derivatives as excellent afterglow materials for red and blue-green light emission, which is attributed to persistent thermally activated delayed fluorescence and RTP.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Yang Xia, Chenfei Zhu, Feng Cao, Yunxia Shen, Mi Ouyang, Yujian Zhang
Summary: This study proposes a host-guest doping strategy to achieve both room-temperature phosphorescence (RTP) and flexibility in organic single crystals (OSCs). The flexible OSCs exhibit bright deep-red phosphorescence upon external force application and can return to their original shape after stress removal. The results suggest that the bright RTP is due to Forster resonance energy transfer (FRET) from the triphenylene molecules to the dopants. This strategy provides a simple and universal approach for the preparation of flexible OSCs with RTP.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Changfeng Si, Tao Wang, Abhishek Kumar Gupta, David B. Cordes, Alexandra M. Z. Slawin, Jay S. Siegel, Eli Zysman-Colman
Summary: Corannulene-derived materials have been extensively studied in energy storage and solar cells. However, their potential as emitters in light-emitting sensors and OLEDs has been largely unexplored. In this study, a family of multi-D-A motifs, TCzPhCor, TDMACPhCor, and TPXZPhCor, were developed by using corannulene as the acceptor and different donors. These materials exhibit multiple phosphorescence and show promise in temperature sensing and OLED applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Catherine Demangeat, Yipeng Tang, Yixuan Dou, Sherrice Dale, Jakob Cielo, Eunkyoung Kim, Ha-Jin Lee, Anthony D'Aleo, Bin Hu, Andre-Jean Attias
Summary: A new approach is developed to control and predict the long-lived room-temperature phosphorescence (RTP) from organic materials by considering host-guest doped crystals. Two series of s-conjugated donor/acceptor (D-s-A) carbazole-based matrices and isomeric 1H-benzo[f]indole-based dopants are designed to explore a wide variety of conformations. By correlating single-crystal X-ray diffraction analysis and photoluminescence properties, a necessary and sufficient condition for RTP is established, paving the way for the development of new host-guest doped systems.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yunhan Zhao, Bingbing Ding, Zizhao Huang, Xiang Ma
Summary: This study reports a series of simple multi-guest/host organic long persistent luminescence (OLPL) materials with high quantum yield, achieved by doping phenothiazine derivative guest molecules into 9H-xanthen-9-one host matrices. The F-substituted phenothiazine derivative doping system exhibits highly efficient emission with a quantum yield of 46.3% in air. Moreover, these OLPL materials show promising potential for applications in the field of heat resistance due to their high luminescence efficiency at high temperatures.
Article
Nanoscience & Nanotechnology
Renjie Chen, Yan Guan, Hailong Wang, Yan Zhu, Xin Tan, Ping Wang, Xueye Wang, Xinghe Fan, He-Lou Xie
Summary: In this study, a series of organic compounds with twisted electron donor-acceptor structures were successfully designed and synthesized, and then dissolved in MMA to realize single-molecular organic room-temperature phosphorescent materials with long lifetime. When grown into single crystals, multicolor-tunable afterglow was achieved at different delay times, showing promising applications in high-level anticounterfeiting.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Liangwei Ma, Siyu Sun, Bingbing Ding, Xiang Ma, He Tian
Summary: A series of high intersystem crossing yield phosphors based on single-benzene structure were obtained in this study, showing efficient phosphorescence emission after being embedded into a polyvinyl alcohol matrix. Photo-switchable phosphorescence emission can be achieved by doping these molecules into a PMMA matrix.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Supphachok Chanmungkalakul, Chao Wang, Rong Miao, Weijie Chi, Davin Tan, Qinglong Qiao, Esther Cai Xia Ang, Choon-Hong Tan, Yu Fang, Zhaochao Xu, Xiaogang Liu
Summary: A simple descriptor, Delta E, was developed to predict host molecules matching with guest RTP emitters with high accuracy. This matching enabled the achievement of multi-layer message encryption.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Review
Materials Science, Multidisciplinary
Shuai Guo, Wenbo Dai, Xuegiang Chen, Yunxiang Lei, Jianbing Shi, Bin Tong, Zhengxu Cai, Yuping Dong
Summary: Organic room temperature phosphorescence materials with high intersystem crossing coefficients and encapsulated in small molecular host matrixes can enhance emission efficiency and suppress nonradiative decay, making them promising for high resolution imaging and anticounterfeiting applications.
ACS MATERIALS LETTERS
(2021)
Article
Optics
Shuaiqi Wang, Huimei Yao, Duobin Wu, Zhenghuan Lin, Qidan Ling
Summary: By synthesizing branched polymers with different topology structures, efficient white electroluminescence under UV excitation can be achieved, and the white emission of the composite films can be adjusted by changing material components and introducing a green-emissive unit.
JOURNAL OF LUMINESCENCE
(2021)
Article
Polymer Science
Wei Lv, Chun Wang, Xing-Chi Lin, Xiao-Fei Mei, Wen Wang, E. Yang, Qi-Dan Ling, Zheng-Huan Lin
Summary: Solid-stated smart polymers responsive to external stimuli, such as the D-A type copolymer PTMF-o containing 3,4-bisthienylmaleimide and fluorene, exhibit photo-response with color alteration upon sunlight irradiation. The oxidative photocyclization of 3,4-bisthienylmaleimide unit weakens charge transfer ability and results in resistive storage performance in PTMF-o film, which can be transformed into a FLASH type behavior after exposure. Furthermore, PTMF-o film can be used to construct NAND and NOR logic gates with light as input condition, providing a simple way to modify the electronic properties of polymers and realize stimuli-response in solid states.
CHINESE JOURNAL OF POLYMER SCIENCE
(2021)
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
Chemistry, Physical
Guofeng You, Lihua Li, Shuaiqi Wang, Jiabing Cao, Lu Yao, Wanzhu Cai, Zhonggao Zhou, Kan Li, Zhenghuan Lin, Hongyu Zhen, Qidan Ling
Summary: A new copolymer PBDB-Cz with carbazole as the conjugated side chain of BDT has been developed for perovskite solar cells, showing excellent hole transport properties and a promising power conversion efficiency of 22.06%. The incorporation of carbazole improves the coplanarity and interaction of the polymer chains, as well as the hole mobility of the polymeric HTM, leading to enhanced device stability with over 90% of initial PCE retention after 100 days of ambient storage.
ADVANCED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Shuaiqi Wang, Jingwei Wang, Qiuqin Huang, Xin Zheng, Zizhu Yao, Shengchang Xiang, Qidan Ling, Zhenghuan Lin
Summary: In this study, two maleimide derivatives with a two-dimensional layered structure exhibited highly efficient red room-temperature phosphorescence (RTP) in solid state. The red RTP was attributed to the synergism of n(pi)-ct-pi* transitions and the 2D halogen-bonded network. Interestingly, the red RTP could be excited by visible light at 500 nm and remained stable under water or external force stimulation. Furthermore, these materials showed high sensitivity and selectivity in detecting toxic heavy metal ions in environmental sewage.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Yuanshan Huang, Xin Zheng, Zizhu Yao, Wei Lv, Shengchang Xiang, Qidan Ling, Zhenghuan Lin
Summary: This study develops multimode stimulus-responsive dual-state room temperature phosphorescent materials and explores their potential applications in password locks and information encryption systems.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Xiaolang Wang, Shuaiqi Wang, Yuanshan Huang, Limei Huang, Jianping Sun, Zhenghuan Lin
Summary: A series of carbon dot composites with full-color and long-lived room-temperature phosphorescence have been prepared using a simple solid-phase one-step method. The emission wavelength can be adjusted by changing the feeding ratio and reaction temperature. These composites exhibit huge application potential in the field of anti-counterfeiting, fingerprint identification, and optoelectronic devices.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Review
Chemistry, Inorganic & Nuclear
Liwen Kang, Zhenghuan Lin
Summary: This article summarizes the structure, photophysical properties, and white-light mechanism of organic-inorganic hybrid perovskites (OIHPs) with white emission, emphasizing strategies for adjusting white-light performance. OIHPs can achieve wide emission coverage by adjusting the types and proportions of metal cations, halogen anions, and organic components to meet the application requirements of white-light emitting diodes (WLEDs).
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Shuaiqi Wang, Shangwei Feng, Renfu Li, Jiance Jin, Junyan Wu, Wei Zheng, Zhiguo Xia, Xueyuan Chen, Qidan Ling, Zhenghuan Lin
Summary: 2D organic-inorganic hybrid perovskites (OIHPs) have advantages in optoelectronics due to their high luminescent stability and good solution processability. However, the low luminescence efficiency of 2D perovskites is caused by thermal quenching and self-absorption of excitons. In this study, a 2D Cd-based OIHP with weak red phosphorescence is reported. The doping of Mn2+ enables superefficient red-light emission by inducing multiexciton generation and Dexter energy transfer.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Xinxin Yang, Shuaiqi Wang, Junyan Wu, Wei Hu, Limei Huang, Qidan Ling, Zhenghuan Lin
Summary: A coordination trap strategy is proposed to construct stimulus-responsive phosphorescent perovskites. Hydroxyl groups are selected as trap groups and introduced into Cd-based perovskite. The trapping and releasing of ligands by the metal ions induces structure transition and alters the luminescence center, providing a new idea for the design of stimulus-responsive phosphorescent intelligent materials.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Shuaiqi Wang, Xiaolang Wang, Shangwei Feng, Wei Lv, Meijuan Lin, Qidan Ling, Zhenghuan Lin
Summary: Non-conjugated polysiloxane nanomaterials with high luminescence performance and tunable cluster luminescence have been synthesized through a low temperature solution method. Doping different types and contents of nonaromatic guest small molecules can effectively regulate the structure and composition of the clusters, resulting in full-color unconventional cluster luminescence. Additionally, these materials exhibit high sensitivity to silver ions and can be used for detecting Ag+ in aqueous solutions.
INORGANIC CHEMISTRY FRONTIERS
(2022)
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.
Review
Chemistry, Physical
Qiuqin Huang, Zhenghuan Lin, Dongpeng Yan
Summary: Organic room-temperature phosphorescence (RTP), especially ultralong organic RTP (UOP), has great potential in fields such as flexible intelligent information encryption, optical anticounterfeiting, and biological imaging. Various strategies have been implemented to improve phosphorescence quantum yield and lifetime, with the confinement effect of inorganic micro/nanostructures being particularly effective. The confinement of inorganic frameworks can enhance the efficiency and lifetime of RTP for organic phosphors, as well as the interactions between organic and inorganic components.
Article
Chemistry, Multidisciplinary
Xin Zheng, Yuanshan Huang, Duoduo Xiao, Shuming Yang, Zhenghuan Lin, Qidan Ling
Summary: The study utilizes the rigid and planar structure of TIM and TAD molecules to construct two space conjugation systems, achieving white light emission with aggregation induced emission and excitation wavelength dependence. Both TIM and TAD exhibit high quantum yield white emission under excitation and can also generate yellow room temperature phosphorescence.
MATERIALS CHEMISTRY FRONTIERS
(2021)