Science in China Press;Heidelberg: SP Science China Press
摘要:
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
