Effect of Carboxylic Acid on Optical Properties of CuInS<sub>2</sub>/ZnS Semiconductor Nanocrystals

Si-Hyun Ahn; Gyu-Che Choi; Yeun-Kyung Beak; Young-Kuk Kim; Yang-Do Kim

doi:10.4150/KPMI.2012.19.5.362

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Carboxylic acid가 CuInS₂/ZnS 반도체 나노입자의 광학적 특성에 미치는 영향: 안시현, 최규채, 백연경, 김영국, 김양도
Effect of Carboxylic Acid on Optical Properties of CuInS₂/ZnS Semiconductor Nanocrystals: Si-Hyun Ahn, Gyu-Che Choi, Yeun-Kyung Beak, Young-Kuk Kim, Yang-Do Kim; Journal of Korean Powder Metallurgy Institute 2012;19(5):362-366
DOI: https://doi.org/10.4150/KPMI.2012.19.5.362

¹재료연구소
²재료연구소
³재료연구소
⁴재료연구소
⁵부산대학교 재료공학과
¹Korea Institute of Materials Science (KIMS)
²Korea Institute of Materials Science (KIMS)
³Korea Institute of Materials Science (KIMS)
⁴Korea Institute of Materials Science (KIMS)
⁵Department of Materials Science and Engineering, Pusan National University

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Abstract

We report the effect of the chain length of carboxylic acid on the photoluminescence(PL) of CuInS_2/ZnS nanocrystals. CuInS_2/ZnS nanocrystals with emission wavelength ranging from 566 nm through 583 nm were synthesized with zinc acetate and carboxylic acids with various chain length. In this study, CuInS_2/ZnS nanocrystals prepared using long chain carboxylic acid showed more improved PL intensity. The origin of strong photoluminescence of the nanocrystals prepared with zinc acetate and long chain carboxylic acid was ascribed to improved size distribution due to strong reactivity between long chain carboxylic acid and zinc acetate.

Keywords: CuInS_2;Quantum dot;Nanocrystal;Sulface modification;Carboxylic acid;

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