有机半导体的无序和光发生效率

IF 4.8 2区化学 Q2 CHEMISTRY, PHYSICAL

The Journal of Physical Chemistry Letters Pub Date : 2023-08-28 DOI:10.1021/acs.jpclett.3c02120

Artem V. Toropin, Vladimir R. Nikitenko*, Nikolai A. Korolev and Oleg V. Prezhdo*,

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引用次数: 0

摘要

给出了有机半导体中双生对分离概率的解析描述。由于能量紊乱，“热”孪晶的初始扩散异常强烈。相对于Onsager模型的预测，这种情况显著增加了低温下的光生量子产率，并减弱了其对温度的依赖，与蒙特卡罗和实验结果一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Disorder and Photogeneration Efficiency in Organic Semiconductors

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Disorder and Photogeneration Efficiency in Organic Semiconductors

An analytical description of the separation probability of a geminate pair in organic semiconductors is given. The initial diffusion of “hot” twins is anomalously strong due to energy disorder. This circumstance significantly increases the photogeneration quantum yield at low temperatures and weakens its temperature dependence relative to predictions of the Onsager model, in agreement with Monte Carlo and experimental results.

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来源期刊

The Journal of Physical Chemistry Letters CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

9.60

自引率

7.00%

发文量

1519

审稿时长

1.6 months

期刊介绍： The Journal of Physical Chemistry (JPC) Letters is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, chemical physicists, physicists, material scientists, and engineers. An important criterion for acceptance is that the paper reports a significant scientific advance and/or physical insight such that rapid publication is essential. Two issues of JPC Letters are published each month.