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학술발표회초록보기

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  • 03월 02일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 InP Quantum Dot-Organosilicon Nanocomposites

등록일
2012년 3월 2일 15시 59분 00초
접수번호
1574
발표코드
MAT.P-1220 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 25일 (수요일) 18:00~21:00
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
Mai Xuan Dung, 최진규1, 정소희2, 정현담1
전남대학교 화학과, Vietnam
1전남대학교 화학과, Korea
2한국기계연구원 나노기계연구본부, Korea
InP quantum dot (QD)-organosilicon nanocomposites were synthesized and their photoluminescence was mainly investigated because of their applicability to white LEDs (light emitting diodes). The InP and InP/ZnS QDs, which are synthesized by conventional method using fatty ligand such as myristic acid, hexadecylamine, octylamine, etc, as stabilizing agent, are incompatible with typical silicone encapsulants due to the large differences in their solubility parameters. Therefore, direct chemical bonding is needed to overcome this incompatible problem. In the first approach, post ligand exchange from myristica acid (MA) to 3-aminopropyldimethylsilane (APDMS) are able to generate soluble InP QDs bearing silylable Si-H groups, which allow embedding the QDs into vinyl-functionalized silicones through direct chemical bonding. However, the photoluminescent efficiency is greatly reduced upon ligand exchanging from MA to APDMS, which is interpreted by surface corrosion of the QD induced by the stronger electron donating ligand based on theoretical studies. Vinyl functionalized InP QDs were then designed in the second approach, in which vinyl terminated amine (10-undecene-1-amine) is used as co-stabilizing agent. The new synthesizing effort is expected to produce highly luminescent QDs being able to chemical bonding to various silane compounds.

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