Phase and Shape Evolution of CdS Nanocrystallites under Solvothermal Conditions

摘要：

CdS nanocrystallites with different morphologies have solvothermally prepared with ethylenediamine (en) and glycol as solvents. Solvent-dependent experiments were carried out by adjusting the ratios of en/glycol to investigate the effects of the solvents on the product phase formation and morphology. It was found that the morphology of CdS nanocrystallite develops from a rough spherical nanoparticle to a rod-, twinrod-, and tetrapod-shaped nanoparticle by increasing the ratio of en/glycol, meanwhile the phase composition changes from coexistence of tetragonal zinc blende CdS and hexagonal wurtzite CdS to pure hexagonal wurtzite CdS. Based on the experimental results, a possible shape evolution mechanism of CdS nanocrystallites is simply discussed.

关键词： Flourides Chemical synthesis X-ray diffraction Electron microscopy Optical properties

作者: Gang Xu Yanfang Zhang Yan-gang Zhao Qingqing Wang Gaorong Han

作者单位: State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering,Zhejia State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering,Zhejia Department of Architecture, Kanagawa university, 3-27-1 Rokkakubashi, Kanagawa-ku,Yokohama 221-8686, State Key Laboratory of Silicon Materials and Department of Materials Science and Engineering, Zheji

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 195-200

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）