Understanding the Photovoltaic Behavior of A–D–A Molecular Semiconductors through a Permutation of End Groups
作者:Yuxuan Che、Yuliang Zhang、Yali Yang、Cheng-Hao Liu、Ricardo Izquierdo、Steven Shuyong Xiao、Dmitrii F. Perepichka
DOI:10.1021/acs.joc.9b01654
日期:2020.1.3
The facile synthesis of a series of benzodithiophene (BDT)- and indacenodithiophene (IDT)-based A-D-A oligomers with different end groups is reported, and their properties are studied by optical spectroscopy, electrochemistry, and density functional theory calculations. The permutation of central and terminal units tunes the optoelectronic properties and photovoltaic device characteristics in a predictable