环戊并二噻吩衍生物的合成及其应用

Synthesis and Application of Cyclopentadithiophene Derivatives

环戊并二噻吩衍生物作为一类具有刚性平面的类芴骨架结构的分子,其光电材料衍生物由于具有带隙低、电导率高和良好的电荷传输性能等优点在塑料电子领域有着广泛的应用.同时由于其易于进行结构修饰,能够方便、快捷地引入各种功能基团,可拓展合成多种衍生物.依据环戊并二噻吩上噻吩S原子的位置不同,可以将其分为6种构造异构体.在这些构造异构体中,目前关于4H-环戊[2,1-b:3,4-b']二噻吩衍生物的研究报道较多.作者对4H-环戊[2,1-b:3,4-b']二噻吩衍生物的合成、性质及其在有机太阳能电池(OSCs)、有机场效应晶体管(OFETs)、有机发光二极管(OLEDs)等领域的研究进展进行了全面综述,并对其有机半导体的格子化学进行了展望.

Cyclopentadithiophene(CPDT)derivatives,as a class of fluorene-like molecular building blocks that have a wide range of applications in the design of organic optoelectronic materials due to their easily molecular tailoring,electron-rich,low band gap,high electrical conductivity and good charge transport properties in the field of plastic electronics.At the same time,cyclopentadithiophene is easy to carry out structural modification,which can introduce various functional groups conveniently and quickly,and can expand a variety of derivatives.Cyclopentadithiophene can be divided into six structural isomers based on the position of the S atom on thiophene.Among these structural isomers,there are many reports on 4 H-cyclopenta[2,1-b:3,4-b’]dithiophene derivatives.In this article,we review mainly the synthesis and properties of 4 H-cyclopenta[2,1-b:3,4-b’]dithiophene derivatives and applications in organic solar cells(OSCs),organic field-effect transistors(OFETs).The research progress in organic light-emitting diodes(OLEDs)and other fields is also comprehensively summarized.The perspectives of the gridochemistry of CPDT-based organic semiconductors will be made finally.