Size-controlled chalcopyrite CuInS 2 nanocrystals: One-pot synthesis and optical characterization

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Title:	Size-controlled chalcopyrite CuInS 2 nanocrystals: One-pot synthesis and optical characterization
Authors:	鄭芳怡;Peng, ShengJie;Liang, YanLiang;Cheng, FangYi;Liang, Jing
Contributors:	地球科學學院大氣科學學系
Keywords:	Absorption spectroscopy;Chalcopyrite;Chemical synthesis;Chemistry;Chemistry and Materials Science;Chemistry/Food Science;Emission spectra;Nanocrystals;Oleic acid;Optical properties;Photoelectrons;Photoluminescence;Photovoltaic cells;Reducing agents;Spectrum analysis;Transmission electron microscopy;X ray photoelectron spectroscopy;X射线光电子能谱;X射线光谱仪;光学特性;可见吸收光谱;控制合成;纳米粒子;规模控制;铜矿
Date:	2012-07-01
Issue Date:	2026-04-21 13:35:57 (UTC+8)
Publisher:	Science in China Press;Heidelberg: SP Science China Press
Abstract:	摘要： Chalcopyrite ternary CulnS2 semiconductor nanocry stals have been synthesized via a facile one-pot chemical approach by using oleylamine and oleic acid as solvents. The as-prepared CuInS2 nanocrystals have been characterized by instrumental analyses such as X-ray diffraction （XRD）, X-ray photoelectron spectroscopy （XPS）, transmission electron microscopy （TEM）/high-resolution TEM （HRTEM）, energy-dispersive X-ray spectroscopy （EDS）, UV-vis absorption spectroscopy （UV-vis） and photoluminescence （PL） spectroscopy. The particle sizes of the CuInS2 nanocrystals could be tuned from 2 to 10 nm by simply varying reaction conditions. Oleylamine, which acted as both a reductant and an effective capping agent, plays an important role in the size-controlled synthesis of CulnS2 nanocrystals. Based on a series of comparative experiments under different reaction conditions, the probable formation mechanism of CulnS2 nanocrystals has been proposed. Furthermore, the UV-vis absorption and PL emission spectra of the chalcopyrite CulnS2 nanocrystals have been found to be adjustable in the range of 527-815 nm and 625-800 rim, respectively, indicating their potential application in photovoltaic devices. 其他題名： Sci. China Chem 其他題名： SCIENCE CHINA Chemistry 出版者： Heidelberg: SP Science China Press 出版日期： 2012-07-01 出處： Science China. Chemistry, 2012-07, Vol.55 (7), p.1236-1241 版權： Science China Press and Springer-Verlag Berlin Heidelberg 2011 版權： Science China Press and Springer-Verlag Berlin Heidelberg 2011. 識別號： ISSN: 1674-7291 識別號： EISSN: 1869-1870 識別號： DOI: 10.1007/s11426-011-4426-4
Appears in Collections:	[Department of Atmospheric Sciences] journal & Dissertation

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