溶剂的魔力：加工溶剂对有机半导体小分子中空穴传输的影响

IF 2.5 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Physica Status Solidi-Rapid Research Letters Pub Date : 2024-03-28 DOI:10.1002/pssr.202400070

A. A. Piryazev, D. K. Sagdullina, I. E. Kuznetsov, A.F. Akhkiamova, M.V. Gapanovich, D. V. Anokhin, A. N. Zhivchikova, M. E. Sideltsev, E. D. Siaglova, M. M. Tepliakova, D. A. Ivanov, A. V. Akkuratov

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引用次数: 0

摘要

有机半导体小分子（SMs）在设计各种新兴光伏和光电器件方面备受关注。有机半导体小分子的高电荷传输特性是实现电子器件卓越性能的重要前提。在此，我们研究了四种有前途的 SM，通过溶剂工程来调节电荷传输特性。研究表明，在不改变化合物分子结构的情况下，用环保的正己烷代替氯苯，可以有效提高基于推拉式 SM 的薄膜的空穴迁移率。因此，正己烷加工薄膜的空穴迁移率提高了 2 到 5 倍，这归功于薄膜形成了良好的纳米级形态。这种毫不费力的方法可应用于其他有机半导体材料，以精确控制其形态并改善其电物理特性。

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Magic of Solvents: Effect of Processing Solvents on Hole Transport in Organic Semiconductor Small Molecules

Organic semiconductor small molecules (SMs) attract much attention for the design of various emerging photovoltaic and optoelectronic devices. High charge transport characteristics of SMs are important prerequisite for achieving outstanding performance of electronics. Herein, we investigated four promising SMs in terms of modulating charge transport properties by solvent engineering. It is shown that the hole mobility of thin films based on push-pull SMs can be effectively enhanced by the replacement of chlorobenzene with environmentally preferable hexane without changing a molecular structure of the compounds. As a result, two to five times higher hole mobility was achieved for hexane-processed films that is attributed to formation of favorable nanoscale morphology of films. This effortless approach can be applied to other organic semiconductor materials to precisely control the morphology and improve their electrophysical properties.

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来源期刊

Physica Status Solidi-Rapid Research Letters 物理-材料科学：综合

CiteScore

5.20

自引率

3.60%

发文量

208

审稿时长

1.4 months

期刊介绍： Physica status solidi (RRL) - Rapid Research Letters was designed to offer extremely fast publication times and is currently one of the fastest double peer-reviewed publication media in solid state and materials physics. Average times are 11 days from submission to first editorial decision, and 12 days from acceptance to online publication. It communicates important findings with a high degree of novelty and need for express publication, as well as other results of immediate interest to the solid-state physics and materials science community. Published Letters require approval by at least two independent reviewers. The journal covers topics such as preparation, structure and simulation of advanced materials, theoretical and experimental investigations of the atomistic and electronic structure, optical, magnetic, superconducting, ferroelectric and other properties of solids, nanostructures and low-dimensional systems as well as device applications. Rapid Research Letters particularly invites papers from interdisciplinary and emerging new areas of research.