Non-halogenated solution-processed ambipolar plastic transistors based on conjugated polymers prepared by asymmetric donor engineering. Issue 47 (18th November 2019)

• Record Type: Journal Article
• Authors: Song, Inho; Kim, Hyun-Woo; Ahn, Jaeyong; Han, Myeonggeun; Kwon, Soon-Ki; Kim, Yun-Hi; Oh, Joon Hak
• Is Part Of: Journal of materials chemistry. Volume 7:Issue 47(2019)
• Page Start: 14977
• Page End: 14985
• Publication Date: 2019-11-18
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c9tc04808a
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : Ambipolar polymeric semiconductors based on a diketopyrrolopyrrole backbone that can be solution-processed using non-chlorinated solvents are reported. Abstract : In addition to attaining strong charge transport capability, field-effect transistors based on conjugated polymer thin films should be processed using non-chlorinated solvents for device fabrication, to avoid adverse impacts on human health and the environment. Although many high-performance diketopyrrolopyrrole (DPP) based conjugated polymers have been studied, few DPP based polymers that can be processed in non-chlorinated solvents have been reported to date. In this work, ambipolar polymeric semiconductors based on a DPP backbone that can be solution-processed using non-chlorinated solvents are reported. The DPP backbone combined with asymmetric conjugated segments results in high solubility and processability in non-chlorinated solvents, such as toluene and o -xylene, without disruption in the conjugation and molecular ordering of the main backbone. The polymer films fabricated with a high-boiling-point additive show ambipolar charge transport characteristics and highly enhanced electrical performance due to greatly enhanced intermolecular interactions and the resulting aggregated nanostructures. The combination of non-chlorinated solution processing with the green additive, along with ambipolar characteristics, enables high-performance environmentally friendly complementary logic circuit integration to be achieved.