Achieving Ultralong Room-Temperature Phosphorescence Via Single-Bond Locking Planarization Strategy

IF 9.6 1区化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY ACS Materials Letters Pub Date : 2024-11-08 DOI:10.1021/acsmaterialslett.4c0211610.1021/acsmaterialslett.4c02116

Lei Zhou, Shunxing Mu, Liangwei Ma*, Ping Jiang, Zhenyi He, Jinming Song and Xiang Ma*,

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Abstract

Ultralong room-temperature phosphorescence (URTP) materials have been widely studied due to their broad applications. However, achieving phosphorescent materials with ultralong lifetimes is engaging and challenging. In this work, the indolo[3,2,1-j,k]carbazole (ICZ) with excellent planarity is obtained through twice single-bond locking on triphenylamine (TPA). Doping ICZ into a rigid matrix, URTP materials with a lifetime of 3.24 s and a photoluminescence quantum yield of 37.37% is successfully prepared.. The analysis of single-crystal, temperature-dependent photophysical characterization, Huang–Rhys factor, and theoretical calculations demonstrates that it is possible to make the molecules more planar and rigid by single-bond locking, which can inhibit the structural relaxation of the excited state and thus reduce the nonradiative transition to generate URTP. In addition, we achieve full-color afterglow by energy transfer. The potential applications of anticounterfeiting and optoelectronic information display of these URTP materials have been conducted. This work is an important reference for the construction of URTP materials.

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来源期刊

ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

14.60

自引率

3.50%

发文量

261

期刊介绍： ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.

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