1. DIKETOPYRROLOPYRROLE‐ AND ISOINDIGO‐ BASED CONJUGATED POLYMER FOR ORGANIC ELECTRONIC DEVICE
- Author
-
ZHOU, JIANING
- Subjects
- Chemistry, Donor-acceptor, Conjugated polymer, diketopyrrolopyrrole, bithiophene, isoindigo
- Abstract
Diketopyrrolopyrrole (DPP) and Isoindigo have been studied extensively in the field of organic electronics in recent years .1,2 Due to their excellent optoelectronic properties , they are potential active materials for applications such as organic light-emitting diodes (OLED), organic field effect transistors (OFET) and polymer solar cells. Compared with traditional inorganic semiconductors, polymer-based electronic materials have unique advantages in solution processability, flexibility and structural modification capabilities. 3 However, the charge transport in polymer materials are usually slow and need to be significantly improved by designing new materials. In this work, a series of novel conjugated polymers based on DPP and Isoindigo material was synthesized. In those polymers, a fluorinated thiophene unit was introduced to control the interchain interaction of the polymer, which could potentially improve the charge transport efficiency between polymer chains. In addition to the major work of conjugated polymers, a polymerizable small molecule with pedant conjugated units was synthesized, which can be further used in anionic polymerization. The materials were characterized by a suite of tools including 1H NMR, UV-Vis spectra, DSC and TGA. The polymers exhibited different band gaps according to the UV-Vis spectrum.
- Published
- 2021