Article
Chemistry, Multidisciplinary
Huixian Shi, Zuoji Niu, He Wang, Wenpeng Ye, Kai Xi, Xiao Huang, Hongliang Wang, Yanfeng Liu, Hengwei Lin, Huifang Shi, Zhongfu An
Summary: A new type of full-color-tunable ultralong phosphorescence carbon dots without matrix-assistance have been reported, which have potential applications in information encryption, light detection, and LED devices.
Article
Chemistry, Multidisciplinary
Yanfeng Liu, Xin Huang, Zuoji Niu, Dongni Wang, Huilin Gou, Qiaobo Liao, Kai Xi, Zhongfu An, Xudong Jia
Summary: This study presents a flexible solid film made of carbon dots and polyvinylpyrrolidone, with unique dynamic ultralong room temperature phosphorescence. The material achieved fully reversible photo-activation and thermal deactivation of the dynamic long afterglow, and ultra-fine URTP patterns were successfully photo-printed onto the films for time-temperature indicating logistics labels.
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)
Review
Chemistry, Multidisciplinary
Huifang Shi, Wei Yao, Wenpeng Ye, Huili Ma, Wei Huang, Zhongfu An
Summary: Organic phosphorescence refers to the radiative transition between different spin states of an organic molecule after excitation. It has a long emission lifetime, large Stokes shift, and rich excited state properties, making it highly attractive in the field of organic electronics. Ultralong organic phosphorescence (UOP) is a persistent luminescence phenomenon in organic phosphors, with an emission lifetime typically exceeding 100 milliseconds. To achieve and enhance UOP, it is necessary to enhance spin-orbit coupling to facilitate the transition of excitons from the excited singlet state to the triplet state, and to suppress nonradiative transitions from the excited triplet state.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Kun Liu, Kaiwei Huang, Anqi Lv, Wenpeng Ye, Yijun Yang, Kang Shen, Jiahuan Zhi, He Wang, Renxiang Zhang, Jiamin Wang, Huili Ma, Huifang Shi, Wei Yao, Zhongfu An, Wei Huang
Summary: Three microstructures of an organic phosphor were prepared using a solution-concentration-controlled self-assembly strategy, showing different phosphorescence efficiencies, which could be promising for miniaturized optical device applications of ultralong organic phosphorescence materials.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Junru Chen, Xiaojie Chen, Lei Cao, Huangjun Deng, Zhenguo Chi, Bin Liu
Summary: In this study, an efficient ultralong organic phosphorescent molecule with the longest lifetime and brightest ultralong organic phosphorescence (UOP) was synthesized through structural modification and intramolecular halogen bond. The research reveals that the generation and accumulation of triplet excitons play a crucial role in achieving efficient UOP materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Jingjuan Bai, Guangkuo Dai, Huiwen Jin, Jiaxin Ma, Zewei Li, Yan Guan, Mingxing Chen, Zhimin Ma, Zhiyong Ma
Summary: In this study, the spectral shift of ultralong room temperature phosphorescence was successfully modulated by extending the molecular conjugation of phosphorescence units, enabling colorful afterglow. Four phosphorescence units were comprehensively compared and two methods to enhance room temperature red afterglow were proposed. The extension of molecular conjugation reduced the T1 energy level and resulted in a red shift of the phosphorescence bands.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Wei Gao, Xianyin Dai, Chao Hou, Weitao Sun, Qi Gong, Hongyu Chen, Yanqing Ge
Summary: Triphenylphosphine (Ph3P) derivatives are important ligands in catalytic chemistry, and a serendipitous discovery of ultralong room temperature phosphorescence (RTP) in a simple substituted triphenylphosphine (RTP-SDFMU-1) is described. The phosphorescence properties of Ph3P derivatives without heavy atoms and/or carbonyl groups are remarkable both in polycrystalline and powder state. The number of n electrons in the phenyl ring and the molecular packing in the solid state are crucial for the ultralong RTP.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Fuming Xiao, Heqi Gao, Yunxiang Lei, Wenbo Dai, Miaochang Liu, Xiaoyan Zheng, Zhengxu Cai, Xiaobo Huang, Huayue Wu, Dan Ding
Summary: Organic room temperature phosphorescence materials with long wavelengths and long lifetimes have been successfully obtained through the guest-host doped strategy. These materials exhibit good tissue penetration and enable successful tumor imaging in living mice.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Xiaoxin Zheng, Quanxiang Han, Qinglian Lin, Cuicui Li, Jinke Jiang, Qing Guo, Xin Ye, Wang Zhang Yuan, Yang Liu, Xutang Tao
Summary: This study demonstrates the high-performance of pure polymer-PAH materials with long-lived room-temperature phosphorescence, which can be used in various applications and fabricated through diverse methods. Their environmental stability makes them a promising option in the field of organic RTPs.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Hui Liu, Kun Zhang, Peng-Fu Gao, Jia-Hua Luo, Yu-Ying Jiang, Meng-Shu Zhou, Ting Li, Xue-Li Zhu, Hong-Ru Fu
Summary: Two Cd-based supramolecular coordination polymers with multiple luminescence emissions, including fluorescence and time- and temperature-dependent ultralong phosphorescence, have been successfully synthesized. One of the compounds exhibits a long-lived afterglow under ambient conditions, while the other shows nearly pure white-light emission. This is the first example of a luminescent coordination polymer with single-phase white-light emission and color-evolution RTP.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Ke Qin, Wenqi Gong, Jia Gao, Deping Hu, Huifang Shi, Wei Yao, Zhongfu An, Huili Ma
Summary: This study reveals that the nonplanar ethylene brides in aromatic hydrocarbon materials can enhance spin-orbit coupling, promoting the population of triplet excitons and accelerating the radiative decay rate of room-temperature phosphorescence. The results provide new insights into achieving bright and long-lived RTP in pure organic materials.
FRONTIERS IN CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Guangqiang Yin, Guifei Huo, Min Qi, Depeng Liu, Longqiang Li, Jiayin Zhou, Xiaoxia Le, Yu Wang, Tao Chen
Summary: This study presents a new fluorescence-afterglow dual-modal information encryption enabled by lanthanide-modulated ultralong organic phosphorescence (UOP). By precisely modulating the optical properties of UOP through energy transfer, the information can be camouflaged with misleading luminescence and decrypted with mutual afterglow. The addition of afterglow gradients provides improved security for spatial-time-resolved anti-counterfeiting applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yusheng Zhou, Jing Ma, Peng Zhang, Zhen Liu, Zhenguo Chi, Guodong Liang
Summary: The concept of cage effect is proposed to promote room-temperature phosphorescence (RTP) property of organic materials, leading to the design and synthesis of a novel phosphor with high performances. The strong cage effect demonstrated in the study effectively alleviates molecular motion of chromophores, simultaneously enhancing their RTP efficiency and lifetime, which could have potential applications in temperature measurements, thermal transition detection, and UV sensing.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Mingxue Yang, Pei Wang, Xu-Lin Chen, Can-Zhong Lu
Summary: In this study, an ortho-substituted compound was reported, which formed a physical dimer through noncovalent interactions, resulting in the inhibition of non-radiative transition and the presence of long afterglow with high quantum efficiency. Computational calculations also rationalized its photoluminescence properties under the aggregational state.
NEW JOURNAL OF CHEMISTRY
(2022)
