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  • 09월 20일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제126회 대한화학회 학술발표회 및 총회 Enhancement of Efficiency of InP/ZnSeS/ZnS Quantum Dots using Bidentate Ligands

등록일
2020년 9월 10일 16시 37분 38초
접수번호
1026
발표코드
INOR.P-158 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 21일(수) 17:30~18:00
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
Hyeongjin Lee, Sang Wook Park1, Young rag Do2,*
Department of Applied Chemistry, Kookmin University, Korea
1Ddepartment of Chemistry, Kookmin University, Korea
2Department of Bionano Chemistry, Kookmin University, Korea
Quantum dots (QDs) are promising materials for lighting applications because of their high photo luminescent quantum yields (PLQYs) and narrow full-width at half-maximum (FWHM). However, Cd-based and all-inorganic perovskite QDs involve heavy metals, such as Cd and Pb, which are prohibited by RoHS regulations. Meanwhile, InP/ZnSeS/ZnS QDs are heavy-metal free, and they do not violate RoHS regulations. For this reason, InP/ZnSeS/ZnS QDs have an advantage in the display market. In order to use InP/ZnSeS/ZnS QDs as display products, the higher the efficiency and stability, the better. However, ligand detachment by air, thermal damage, and UV of the InP/ZnSeS/ZnS QDs can cause a decrease in efficiency. Therefore, we improved the efficiency by causing the ligand to be more strongly bound by using a bidentate ligand such as 2,2-iminodibenzoic acid (IDA). The PLQY of IDA-treated InP/ZnSeS/ZnS QD is 25.5% higher than that of pristine sample.

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