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  발표분야
고분자가공/복합재료
  발표구분
포스터발표Poster presentation
  발표장치
Poster
  제목
Thermally and Chemically Robust Colloidal Quantum Dots by Cross-Linkable Polymeric Ligands
  공동저자
  • 고재완 (고려대학교, 회원)
  • 장준혁 (서울대학교, 회원)
  • 정병국 (한국과학기술원, 비회원)
  • 장세규 (한국과학기술연구원, 회원)
  • 이도창 (한국과학기술원, 회원)
  • 배완기 (성균관대학교, 회원)
  • 방준하 (고려대학교, 회원)
  발표자
고재완 (고려대학교 , Email: colmoss2@korea.ac.kr, 전화: 0232903837
  연구책임자
방준하 (고려대학교 , Email: joona@korea.ac.kr, 전화: 0232903837
  키워드
Quantum dots, Polymeric ligand, Encapsulation, Surface passivation
  우수논문발표상
우수논문발표상에 응모하지 않습니다
Thermally and Chemically Robust Colloidal Quantum Dots by Cross-Linkable Polymeric Ligands
고재완, 장준혁1, 정병국2, 장세규3, 이도창2, 배완기4, 방준하
고려대학교; 1서울대학교; 2한국과학기술원; 3한국과학기술연구원; 4성균관대학교
Endowing quantum dots (QDs) with robustness is of the utmost importance since the major limitation of QDs in practical applications are their thermal instabilities. Herein, we propose an effective passivation method using polymeric ligands, thiol-terminated poly(methyl methacrylate-b-glycidyl methacrylate) (P(MMA-b-GMA)). The cross-linking of PGMA providing a robust network on QDs are conducted by a mild reaction condition using Lewis acid under an ambient environment, thereby not affecting the photoluminescence quantum yield (PL QY) of QDs. The resulting cross-linked shell suppresses the formation of charge trap sites under high temperature, which are mainly responsible for diminished PL QY. Our method is simple with wide applicability to the range of various sizes and compositions of QDs, thus, paving the way for the practical hybridization with polymeric materials typically employed in the fields of display fabrication especially as a down-conversion layer or color filter.
Keywords: Quantum dots, Polymeric ligand, Encapsulation, Surface passivation