蒽-[1]苯并噻吩[3,2-b][1]苯并噻吩 (BTBT) 二元和三元化合物作为 p 型半导体用于有机场效应晶体管和光电晶体管

IF 5.1 2区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Maowei Qi, Dongwei Zhang, Yanan Zhu, Changbin Zhao, Aiyuan Li, Fobao Huang, Yaowu He and Hong Meng
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引用次数: 0

摘要

[1]苯并噻吩并[3,2-b][1]苯并噻吩(BTBT)和蒽(An)是构建用于高性能有机场效应晶体管(OFET)的 p 型小分子的最有前途的平面构筑模块。在此,我们报告了三种新型共轭物,即 An-BTBT、BTBT-An-BTBT 和 An-BTBT-An,它们是由 An 和 BTBT 单元组合而成的二元和三元分子。系统研究了这三种化合物在光物理特性、分子堆积结构和电荷载流子迁移率方面的差异。这三种化合物在四氢呋喃(THF)溶液中都显示出蓝色荧光,而 An-BTBT-An 和 BTBT-An-BTBT 在薄膜状态下则显示出绿色荧光,尤其是 BTBT-An-BTBT 薄膜,其光致发光量子产率(PLQY)高达 11.6%。此外,这三种化合物在多晶 OFET 中都表现出典型的 p 型传输特性,其中 BTBT-An-BTBT 的迁移率最低(0.22 cm2 V-1 s-1),An-BTBT-An 的迁移率最高(1.20 cm2 V-1 s-1)。此外,An-BTBT-An 单晶 OFET 的最大迁移率高达 5.4 cm2 V-1 s-1,而 BTBT-An-BTBT 单晶的空穴迁移率仅为 0.4 cm2 V-1 s-1。值得注意的是,BTBT-An-BTBT 单晶体作为光电晶体管的有源层表现出卓越的性能,光致发光率达到 5375 A W-1,光敏度高达 ∼105。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Anthracene-[1]benzothieno[3,2-b][1]benzothiophene (BTBT) dyad and triads as p-type semiconductors for organic field-effect transistors and phototransistors†

Anthracene-[1]benzothieno[3,2-b][1]benzothiophene (BTBT) dyad and triads as p-type semiconductors for organic field-effect transistors and phototransistors†

Anthracene-[1]benzothieno[3,2-b][1]benzothiophene (BTBT) dyad and triads as p-type semiconductors for organic field-effect transistors and phototransistors†

[1]Benzothieno[3,2-b][1]benzothiophene (BTBT) and anthracene (An) are the most promising planar building blocks for constructing p-type small molecules for high-performance organic field-effect transistors (OFETs). Herein, we report three novel conjugates, namely, An-BTBT, BTBT-An-BTBT, and An-BTBT-An, which are dyad and triad molecules, by combining An and BTBT units. The differences in photophysical characteristics, molecular packing structures, and charge carrier mobilities of the three compounds were systematically studied. All three compounds display blue fluorescence in tetrahydrofuran (THF) solution, while An-BTBT-An and BTBT-An-BTBT exhibit greenish fluorescence in thin-film state, especially for the BTBT-An-BTBT film, which exhibits a photoluminescence quantum yield (PLQY) of up to 11.6%. Moreover, all three compounds exhibit typical p-type transport properties in polycrystalline OFETs with the lowest mobility for BTBT-An-BTBT (0.22 cm2 V−1 s−1) and the highest mobility for An-BTBT-An (1.20 cm2 V−1 s−1). Furthermore, An-BTBT-An single crystal OFETs demonstrate the maximum mobility of up to 5.4 cm2 V−1 s−1, while the hole mobility of BTBT-An-BTBT single crystals only reaches 0.4 cm2 V−1 s−1. Notably, BTBT-An-BTBT single crystals as an active layer in phototransistors exhibit excellent performance, achieving a photoresponsivity of 5375 A W−1 and a photosensitivity up to ∼105.

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来源期刊
Journal of Materials Chemistry C
Journal of Materials Chemistry C MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED
CiteScore
10.80
自引率
6.20%
发文量
1468
期刊介绍: The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study: Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability. Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine. Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive. Bioelectronics Conductors Detectors Dielectrics Displays Ferroelectrics Lasers LEDs Lighting Liquid crystals Memory Metamaterials Multiferroics Photonics Photovoltaics Semiconductors Sensors Single molecule conductors Spintronics Superconductors Thermoelectrics Topological insulators Transistors
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