Synthesis and characterization of high-ordered CdTe nanorods

• Published in: Superlattices and microstructures 2015-12, Vol.88, p.536-540
• Main Authors: Ma, Ligang, Wei, Zelu, Zhang, Fengming, Wu, Xiaoshan
• Format: Article
• Language: English
• Subjects: AAO template; CdTe nanorod; Crystal growth; CSS
• ISSN: 0749-6036; 1096-3677
• DOI: 10.1016/j.spmi.2015.10.014

Cadmium telluride (CdTe) materials are an important absorbed layer and development solar energy conversion devices based on nano-fabrication techniques have attracted considerable interest in fabricating optoelectronic devices. Herein, through close-space sublimation method, vertically high-aligned CdTe nanorods are successfully obtained for the first time, with the help of Anodic Aluminum Oxide (AAO) template, which can perfectly control the morphology, diameter, and spacing among the CdTe nanorods. Its the crystal structure and optical properties are characterized by X-ray diffraction, X-ray photoelectron spectroscopy, Raman scattering, and photoluminescence. The results indicate that CdTe nanorods are textured polycrystalline with the cubic phase and bear good crystallinity. In addition, this deposition technique is a clean, inexpensive, high-throughput, versatile and reproducible for obtaining vertically aligned CdTe nanorod, which shows the potential applications in the future for the preparation of CdTe-based nanostructure solar cells. [Display omitted] •Combining with the advantages of CSS method and characteristic of AAO template.•We successfully prepare the vertically aligned polycrystalline CdTe nanorods.•The diameter of CdTe nanorods completely depend on the aperture of AAO template.•The PL emission of CdTe nanorod is broadened and blue shifted.