화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2019년 가을 (10/09 ~ 10/11, 제주컨벤션센터)
권호 44권 2호
발표분야 콜로이드 및 분자조립 부문위원회 II (영어발표)
제목 High-Resolution Patterning and Tandem Processing of Colloidal Quantum Dots Crosslinked with Photoinduced-Ligand Binding Agents
초록 Exploiting the luminescence characteristics of colloidal quantum dots (QDs), researches on displays based on EL of QDs have been actively conducted. To achieve this, a multi-color QD patterning technology must be established. The applicability of QDs to various solution process allows one to carry out their deposition over a large-scale at low cost, but it also causes a problme of dissolving the bottom layer if the the secondary layer is applied by solution process consecutively. Here, we report a simple way to obtain high-resolution patterns of colloidal QDs using a chemical crosslinker that can bind to ligands on QD surface upon exposure to UV, which is referred to as the photoinduced-ligand binding agents (PiLBA). Multi-color patterns can also be stacked laterally or vertically by repeating the same solution process. The optimal loading of the PiLBA yielded the cross-linked QDs with EL characteristics comparable to those of pristine QDs that do not include PiLBA.
저자 강문성
소속 서강대
키워드 colloidal quantum dots; patterning; tandem processing; QLED
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