Combined nanoarchitectonics with self-assembly and electrosynthesis for flexible PTCDIs@PEDOT films with interpenetrating P–N heterojunctions. Issue 2 (16th December 2021)

• Record Type: Journal Article
• Authors: Gao, Nan; Xue, Zexu; Yu, Jiarui; Chen, Shuai; Zang, Ling
• Is Part Of: Materials advances. Volume 3:Issue 2(2022)
• Page Start: 1248
• Page End: 1253
• Publication Date: 2021-12-16
• Subjects: 620.11
• DOI: 10.1039/d1ma01015h
• Languages: English
• ISSNs: 2633-5409

Abstract

Abstract : A novel synthesis method for fabricating large area, uniform bulk-heterojunction films with electron donor and acceptor materials homogeneously distributed among each other forming a bicontinuous network morphology is reported. Abstract : A novel synthesis method for fabricating large area, uniform bulk-heterojunction films with electron donor and acceptor materials homogeneously distributed among each other forming a bicontinuous network morphology is reported. The acceptor part was fabricated as nanofibers self-assembled from perylene tetracarboxylic diimide (PTCDI) molecules, which form a typical n-type semiconductor. The donor part was a classic P-type conducting polymer, poly(3, 4-ethylenedioxythiophene) (PEDOT), which can be electrochemically polymerized from the EDOT monomer directly inside the nanofiber mesh, forming an interpenetrating P–N network. The nanofiber-based P–N heterojunction film demonstrates significant photocurrent generation. The facile and universal fabrication process combining in situ electrochemical polymerization with molecular self-assembly may find broader application in materials fabrication and structural engineering for P–N heterojunctions in photovoltaics and other optoelectronics.