2D Conjugated Polymer Thin Films for Organic Electronics: Opportunities and Challenges

Abstract

Two‐dimensional conjugated polymers (2DCPs) possess extended in‐plane π‐conjugated lattice and out‐of‐plane π‐π stacking, which results in enhanced electronic performance and potentially unique band structures. These properties, along with pre‐designability, well‐defined channels, easy post‐modification, and order structure attract extensive attention from material science to organic electronics. In this review, we summarize the recent advance in the interfacial synthesis and conductivity tuning strategies of 2DCP thin films, as well as their application in organic electronics. Furthermore, we show that, by combining topology structure design and targeted conductivity adjustment, researchers have fabricated 2DCP thin films with pre‐designed active groups, highly ordered structures and enhanced conductivity. These films exhibit great potential for various thin‐film organic electronics, such as organic transistors, memristors, electrochromism, chemiresistors, and photodetectors. Finally, we discuss the future research directions and perspectives of 2DCPs in terms of the interfacial synthetic design and structure engineering for the fabrication of fully conjugated 2DCP thin films, as well as the functional manipulation of conductivity to advance their applications in future organic electronics.This article is protected by copyright. All rights reserved