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- CdSe 나노 입자의 이방성 구조 제어 및 특성연구
- 김신호, 박명국, 김양도
- Preparation and Characteristics of Elongated CdSe nanoparticles
- Shin-Ho Kim, Myoung-Guk Park, Yang-Do Kim
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Journal of Korean Powder Metallurgy Institute 2008;15(3):210-213
DOI: https://doi.org/10.4150/KPMI.2008.15.3.210
2한국에너지기술연구원 태양전지연구센터 CIS태양전지 실험실
3부산대학교 재료공학부
1School of Materials Science and Engineering, Pusan National University
2Korea Institute of Energy Research, Solar Cells Research Center
3School of Materials Science and Engineering, Pusan National University
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Abstract
Elongated CdSe nanoparticles with a diameter of 3-7nm have been successfully synthesized using two surfactants of trioctylphospine (TOP) and hexadecylamine (HDA) at 160°C. The formation of elongated CdSe nanoparticles is possibly due to the cooperative effects from both the different binding capability of two surfactants (TOP and HDA) and intrinsically anisotropic crystal structure of the CdSe. The electron diffraction pattern of CdSe nanoparticles revealed the formation of wurzite phase. The CdSe samples showed red-shifted wavelength from 560 to 580nm with increasing the refluxing time due to the gradual growth of CdSe nanoparticles. The relatively broad absorption band can be attributed to the surface state of CdSe nanoparticles. The possible formation mechanism of elongated CdSe nanoparticles was proposed and the characteristics of CdSe have been discussed as well.
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