富勒烯 C70 和 C70 甲烷和假二氢单加合物的光物理和热激活延迟荧光 (TADF)：比较研究

IF 2.7 4区工程技术 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Organic Electronics Pub Date : 2024-06-06 DOI:10.1016/j.orgel.2024.107083

Tiago Palmeira , Célia Santos , Mario N. Berberan-Santos

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引用次数: 0

摘要

报告对原始 C70 和两种 C70 衍生物的光物理特性进行了比较研究，包括它们的热激活延迟荧光（TADF）。研究发现，在 C70 笼状结构中添加取代基团会改变辐射和非辐射速率常数，而非辐射过程（S1→S0 内部转换和 S1→T1 及 T1→S0 系统间交叉）的变化更为明显。提出并应用了一种新的 TADF 分析方法（时间分辨和稳态数据的全局分析）。结果发现，与 C70 相比，这两种衍生物的 TADF 效率较低。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Photophysics and thermally activated delayed fluorescence (TADF) of fullerene C70 and C70 methano and pseudodihydro monoadducts: A comparative study

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Photophysics and thermally activated delayed fluorescence (TADF) of fullerene C70 and C70 methano and pseudodihydro monoadducts: A comparative study

A comparative study of the photophysical properties of pristine C₇₀ and two C₇₀ derivatives, including their thermally activated delayed fluorescence (TADF) is reported. It is observed that the addition of a substituent group to the C₇₀ cage-like structure changes both the radiative and the nonradiative rate constants, the change being more pronounced for the nonradiative processes (S₁→S₀ internal conversion and S₁→T₁ and T₁→S₀ intersystem crossings). A new method of TADF analysis (global analysis of time-resolved and steady-state data) is presented and applied. Both derivatives are found to display a less efficient TADF when compared with C₇₀.

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来源期刊

Organic Electronics 工程技术-材料科学：综合

CiteScore

6.60

自引率

6.20%

发文量

238

审稿时长

44 days

期刊介绍： Organic Electronics is a journal whose primary interdisciplinary focus is on materials and phenomena related to organic devices such as light emitting diodes, thin film transistors, photovoltaic cells, sensors, memories, etc. Papers suitable for publication in this journal cover such topics as photoconductive and electronic properties of organic materials, thin film structures and characterization in the context of organic devices, charge and exciton transport, organic electronic and optoelectronic devices.