Formation of Ag2S nanowires and Ag2S/CdS heterostructures via simple solvothermal route |
| |
| Authors: | Shancheng Yan Kai Shen Xin Xu Yi Shi Jiansheng Wu Zhongdang Xiao |
| |
| Affiliation: | 1. School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210046, PR China;2. National Laboratory of Solid State Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, PR China;3. College of Material Science and Technology, Nanjing University of Aeronautics,Astronautics, Yu Dao Street 29#, Nanjing 210016, PR China;4. State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab), School of Biological Science & Medical Engineering, Southeast University, Si Pai Lou 2#, Nanjing 210096, PR China |
| |
| Abstract: | In our present work, Ag2S nanowires and Ag2S/CdS heterostructures have been successfully prepared in anhydrous ethanol through a simple solvothermal route. From the transmission electron microscopy (TEM) analysis, it is found that the factors influenced the final product are the concentration of Ag+, reaction temperature, reaction time, and solvent. Ag2S nanowires are formed by complete Ag+ cation exchange. Because of the selectivity for partial cation exchange, the reaction starts preferentially at the ends of the CdS nanowires to produce novel Ag2S/CdS heterostructures. In addition, as the two end facets of wurtzite CdS nanowires are crystallographically nonequivalent, the produced Ag2S/CdS heterostructures are asymmetric. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
