2,7-Dialkyl[1]benzothieno[3,2-b]benzothiophenes were tested as solution-processible molecular semiconductors. Thin films of the organic semiconductors deposited on Si/SiO2 substrates by spin coating have well-ordered structures as confirmed by XRD analysis. Evaluations of the devices under ambient conditions showed typical p-channel FET responses with the field-effect mobility higher than 1.0 cm(2) V-1 S-1 and /(n)//(off) of -10(7).
Peculiar Features of the Reduction of Keto Group in the Synthesis of Mono- and Dialkyl-Substituted Benzo[b]benzo[4,5]thieno[2,3-d]thiophene
作者:I. O. Gudkova、E. A. Sorokina、E. A. Zaborin、M. S. Polinskaya、O. V. Borshchev、S. A. Ponomarenko
DOI:10.1134/s1070428024060137
日期:2024.6
Abstract Mono- and dioctyl-substituted benzo[b]benzo[4,5]thieno[2,3-d]thiophenes C8-BTBT and C8-BTBT-C8 that are widely used as organic semiconductors in the manufacture of various organic electronic devices have been synthesized in two steps, by Friedel–Crafts acylation of benzo[b]benzo[4,5]thieno[2,3-d]thiophene (BTBT) and subsequent reduction of the ketone group(s). Taking into account that the
抽象的 单辛基和二辛基取代的苯并[ b ]苯并[4,5]噻吩并[2,3- d ]噻吩C8-BTBT和C8-BTBT-C8广泛用作有机半导体,用于制造各种有机电子器件分两步合成,通过苯并[ b ]苯并[4,5]噻吩并[2,3- d ]噻吩(BTBT)的弗里德尔-克来福特酰化和随后酮基的还原。考虑到此类化合物合成的限制阶段是还原阶段,研究了酰基取代的BTBT衍生物的不同还原方法,并提出了可能的还原机制。使用水合肼作为还原剂在酮基还原阶段获得了最佳结果。