|
|||||
|
|
A combined template and closed space sublimation approach to the synthesis of single-crystalline CdS nanowires and their optical properties |
|
| Authors: | Zhudong Hu Yuan Yu |
| Affiliation: | a Key Laboratory on the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China b Laboratory of Organic Optoelectronic Functional Materials and Molecular Engineering, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100080, China c Department of Mathematics and Physics, Shanghai University of Electric Power, Shanghai 200090, China |
| Abstract: | High-quality single-crystalline CdS nanowires about 40 nm in diameter have been successfully synthesized without any catalyst at ambient pressure by combining the closed space sublimation (CSS) technique with porous anodic alumina membrane (AAM) template method. Extensive characterizations of the nanowires have been carried out using scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), Raman spectroscopy and UV-Visible absorption spectroscopy. A band gap of 2.38 eV is determined from the UV-Vis absorption spectrum obtained from the nanowire sample. Our facile technique may in principle also be used for synthesizing other one-dimensional (1D) materials with high vapor pressure and axial nanowire heterostructures. |
| Keywords: | CdS Nanowire Anodic alumina template Closed space sublimation |
| 本文献已被 ScienceDirect 等数据库收录！ | |