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  • 02월 28일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Photoluminescence Enhancement of Ethanol with Graphene Quantum Dots Synthesized by Thermal Decomposition of Silicon Carbide

등록일
2019년 2월 14일 15시 29분 17초
접수번호
4514
발표코드
MAT.P-518 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 19일 (금요일) 11:00~12:30
발표형식
포스터
발표분야
Material Chemistry
저자 및
공동저자
Naeun Lee
Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, Korea
High-quality Graphene quantum dots (GQDs) with superior properties can be used advanced field. In particular, low cytotoxicity and large surface area of GQDs allowed to applicate GQDs in the bio-imaging fields. However, the complexity of their fabrication process and the overall quality of the GQDs need to be addressed when considering application. We report successful fabrication of high-quality GQDs by thermal decomposition of silicon carbide (SiC) under hydrogen etching gas. The fabricated GQDs were composed of high-quality graphene and H-terminated edges. PL emission spectrum with higher intensity was obtained in GQDs in ethanol solution since some of aromatic C=C in basal plane was destroyed and low defects were produced by invasion of oxygen functional group. The enhanced PL ratio was measured to be 27 and intrinsic emission was observed in GQDs. These results show possibility to apply at biosensing fields.

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