• Effect of Side-Chain Substitution on the Physical and Optical Characteristics of TDPP-T Copolymers for Organic Semiconductors

  • Dae Hong Kim# , Jin Soo Yoo*,# , Junghoon Lee*,† , and Kyu Cheol Lee†

  • Department of Applied Chemistry, Dong-Eui University, 176 Eomgwangro, Busan 47184, Korea *Division of Chemical Engineering, Dongseo University, Busan 47011, Korea

  • 유기반도체용 TDPP-T 공중합체의 곁사슬 치환이 물리적, 광학적 특성에 미치는 영향

  • 김대홍# · 유진수*,# · 이정훈*,† · 이규철†

  • 동의대학교 응용화학과, *동서대학교 화학공학부

  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

This study aimed to investigate the physical and chemical properties resulting from the introduction of siloxane or methoxy group substituents in four copolymers, which were synthesized using thiophene(T) or methoxy thiophene and thienyl diketopyrrolopyrrole.Polymers containing siloxane group showed a wider absorption range and higher thermal stability than polymers with hydrocarbons. These results can open a possibility to be used as materials for high stable organic semiconductors.


본 연구에서는 thiophene(T) 또는 methoxy thiophene과 탄화수소 또는 실록세인(siloxane)을 곁사슬로 갖는 thienyl diketopyrrolopyrrole(TDPP)를 Stille 커플링 중합법으로 네 가지의 유기 반도체용 공중합체를 합성하여 실록세인 곁사슬과 methoxy 기에 따른 물리적 및 화학적 특성을 확인하였다. Siloxane 기를 갖는 고분자의 경우는 탄화수소를 갖는 고분자보다 넓은 흡수 범위와 높은 열 안정성을 보여 주었다. 이런 결과는 고안정성 유기반도체용 재료로써 활용할 수 있음을 의미한다.


Keywords: conjugated polymer, diketopyrrolopyrrole, thermal stability, organic semiconductor, siloxane.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2024 Impact Factor : 0.6
  • Indexed in SCIE

This Article

  • 2025; 49(5): 634-641

    Published online Sep 25, 2025

  • 10.7317/pk.2025.49.5.634
  • Received on Apr 2, 2025
  • Revised on May 3, 2025
  • Accepted on May 5, 2025

Correspondence to

  • Junghoon Lee* , and Kyu Cheol Lee

  • Department of Applied Chemistry, Dong-Eui University, 176 Eomgwangro, Busan 47184, Korea *Division of Chemical Engineering, Dongseo University, Busan 47011, Korea

  • E-mail: junghoonlee@gdsu.dongseo.ac.kr, kclee@deu.ac.kr