Wide‐range color‐tunable afterglow emission by the modulation of triplet exciton transition processes based on buckybowl structure
Yongfeng Zhang,
Chenchen Xiong,
Wenbo Wang,
Wenbo Dai,
Yue Ren,
Junming Xia,
Gengchen Li,
Jianbing Shi,
Bin Tong,
Xiaoyan Zheng,
Xiangfeng Shao,
Zhengxu Cai,
Yuping Dong
Affiliations
Yongfeng Zhang
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Chenchen Xiong
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Wenbo Wang
State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical EngineeringLanzhou University LanzhouChina
Wenbo Dai
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Yue Ren
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Junming Xia
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Gengchen Li
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Jianbing Shi
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Bin Tong
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Xiaoyan Zheng
Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, School of Chemistry and Chemical EngineeringBeijing Institute of Technology BeijingChina
Xiangfeng Shao
State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical EngineeringLanzhou University LanzhouChina
Zhengxu Cai
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Yuping Dong
Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications School of Materials Science and Engineering Beijing Institute of Technology Beijing China
Abstract Buckybowl structures as non‐uniform electrostatic potential distributions of polycyclic aromatic materials show a unique photoelectric performance. In this work, OTC was utilized for dynamic modulation of triplet exciton transition processes. Five host molecules with different functional units were selected, thus providing different intermolecular interactions in the host/guest systems. Therefore, the delayed emissions were regulated from 536 to 624 nm via the tuning of the triplet exciton transition processes of OTC in different hosts. Experimental data and theoretical calculations revealed that the varied triplet transition behaviors resulted from the competition between the intersystem crossing (ISC) process of OTC‐monomer and the reverse intersystem crossing (RISC) process of OTC‐aggregates. This work proves the superior structure of buckybowl‐based luminophore for controlling triplet exciton transition processes and supplies a new perspective for persistent afterglow luminophore design.
