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학술지 Controlled Aspect Ratios of Gold Nanorods in Reduction-Limited Conditions
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저자
김종엽, 아칠성, 장두전
발행일
201108
출처
Journal of Nanomaterials, v.2011, pp.1-7
ISSN
1687-4110
출판사
Hindawi Publishing
DOI
https://dx.doi.org/10.1155/2011/405853
협약과제
10MC2400, 프로그램 가능한 바이오 CMOS 전계형 소자, 성건용
초록
Aspect ratios of gold nanorods have been finely modified in reduction-limited conditions via two electrochemical ways: by changing the amount of a growth solution containing small gold clusters in the presence of already prepared gold nanorods as seeds or by changing electrolysis time in the presence or absence of a silver plate. While the atomic molar ratio of gold in the growth solution to gold in the seed solution is critical in the former method, the relative molar ratio of gold ions to silver ions in the electrolytic solution is important in the latter way for the control of the aspect ratios of gold nanorods. The aspect ratios of gold nanorods decrease with an increase of electrolysis time in the absence of a silver plate, but they increase with an increase of electrolysis time in the presence of a silver plate. © 2011 Jong-Yeob Kim et al.
KSP 제안 키워드
Electrolysis time, Electrolytic solution, Gold ions, Molar ratio, Silver ions, Small gold clusters, aspect ratio, gold nanorods
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