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

제126회 대한화학회 학술발표회 및 총회 One-pot synthesis of water-soluble Iron Selenide Quantum Dots with chiral stabilizer

등록일
2020년 9월 10일 16시 57분 35초
접수번호
1037
발표코드
ANAL.P-288 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 21일(수) 17:30~18:00
발표형식
포스터
발표분야
Analytical Chemistry
저자 및
공동저자
YeongEun Choi, Jaebeom Lee*
Chemistry, Chungnam National University, Korea
Iron chalcogenides hold considerable promise for energy conversion and biomedical applications. These iron-containing quantum dots also serve as a safe alternative to the conventionally used metal-chalcogenide systems in which the heavy metal component is usually toxic. Here, a successful synthesis of Iron selenide(FeSe) quantum dots(QDs) is reported in an aqueous system using glutathione(GSH) and L-cysteine(Cys) as surfactants. Reaction was optimized by controlling reaction pH, time and temperature to improve the quantum yield. Transmission electron microscopy analysis suggests that the sized of FeSe QDs are distributed in the range of ~3.0-4.0 nm with a lattice spacing of 0.297nm. Furthermore, the prepared FeSe NPs exhibited intense light blue fluorescence on ultraviolet light exposure, which also displays strong photoluminescence and relatively high quantum yield in an aqueous system.(c.a.20%) This novel strategy, based on the synthesis of Iron chalcogenides quantum dots in an aqueous system, has the potential to increase significantly towards in-vivo bio-imaging and sensing.

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