Facile synthesis and optoelectronic properties of thienopyrroledione based conjugated polymer for organic field effect transistors

Henry Opoku, Ji Yeon Choy, K. Ashok Kumar, Nabeen K. Shrestha, Iqra Rabani, Supriya A. Patil, Vijaya Gopalan Sree, Hyun Seok Kim, Chinna Bathula

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Herein we present the synthesis and application of a prominent polymer solar cell (PSC) donor-acceptor (D-A) based material (PBDTHTPD) constituted of thiophene -benzo [1, 2-b: 4, 5-b′] dithiophene (BDT) and thienopyrroledione (TPD) as a potential active layer for organic thin film transistor (OFETs) application. The material synthesized via microwave stille coupling was characterized and applied as an active layer in a PMMA gated OFET device. Intrinsically, the polymer exhibits appreciable thermal steadiness of 382 °C, and showed UV–vis spectrum ranging from 300 nm up to 800 nm, affording an optical band gap of 1.86 eV. Energy level of this material assessed by cyclic voltammetry analysis showed both HOMO and LUMO levels of −4.98 eV and −3.12 eV, respectively for this novel organic semiconductor. Top-Gate/Bottom Contact (TG-BC) layout, based on the polymer demonstrated a p-type characteristics with maximum field-effect mobility (μmax) of 9.68 × 10−5 cm2v−1s−1.

Original languageEnglish
Article number108973
JournalDyes and Pigments
Volume186
DOIs
StatePublished - Feb 2021

Keywords

  • 4-c] pyrrole-4
  • 6-dione
  • Benzodithiophene
  • Conjugated copolymer
  • Optoelectronic properties
  • PMMA dielectric
  • Thieno [3

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