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Methoxy-substituted naphthothiophenes – Single molecules' vs. condensed phase properties and prospects for organic electronics applications
Synthetic Metals ( IF 4.4 ) Pub Date : 2022-05-28 , DOI: 10.1016/j.synthmet.2022.117094
A.V. Khoroshutin, D.A. Lypenko, A.A. Korlyukov, A.E. Aleksandrov, P.A. Buikin, A.A. Moiseeva, A. Botezatu, S.D. Tokarev, A.R. Tameev, O.A. Fedorova

A series of tricyclic naphthothiophenes – photocyclization products (8-methoxynaphtho[1,2-b]thiophene; 6,7-dimethoxynaphtho[1,2-b]thiophene; 8-methoxynaphtho[2,1-b]thiophene) have been studied. HOMO and LUMO levels, as well as a gap between them was accessed by cyclic voltammetry and optical spectroscopy. Double potential step chronoamperometry showed that the former naphthothiophene exhibits slower current decay than the other substances. Charge carrier mobility measured by the CELIV technique was estimated to be of the order of 10−4 cm2V−1s−1 for 0.2 µm films and approaches 10−1 cm2V−1s−1. for the 5 µm film of 8-methoxynaphtho[1,2-b]thiophene. It is believed the high mobility is associated with the ordering of the high conductivity axis of the microcrystals in the layers.



中文翻译:

甲氧基取代萘噻吩——单分子与凝聚相的特性和有机电子应用前景

一系列三环萘并噻吩——光环化产物(8-甲氧基萘[1,2- b ]噻吩;6,7-二甲氧基萘[1,2- b ]噻吩;8-甲氧基萘[2,1- b ]噻吩)已被研究. HOMO 和 LUMO 能级,以及它们之间的差距通过循环伏安法和光谱法获得。双电位阶跃计时电流法表明,前萘并噻吩的电流衰减比其他物质慢。对于 0.2 µm 薄膜,通过 CELIV 技术测量的电荷载流子迁移率估计约为 10 -4 cm 2 V -1 s -1并接近 10 -1 cm 2 V -1s -1。用于 8-甲氧基萘并[1,2- b ]噻吩的 5 µm 薄膜。据信,高迁移率与层中微晶的高导电轴的排序有关。

更新日期:2022-05-28
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