Photoinduced cathodic deposition of CdTe nanoparticles on polycrystalline gold substrate |
| |
| Institution: | 1. Department of Chemistry, Yonsei University, Wonju Campus, Wonju, Kangwondo 220-710, Republic of Korea;2. Department of Applied Chemistry, Konkuk University Chungju Campus, Chungju, Chungbuk 380-701, Republic of Korea;3. Center for Renewable Energy Science and Technology (CREST), The University of Texas at Arlington, Arlington, TX 76109-0065, USA;1. Metalurigical Lab., Nano-Science & Semiconductor Labs., Physics Department, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt;2. Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia;1. Department of Frontier Material, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, Aichi, 466-8555, Japan;2. Department of Electrical and Electronic Engineering, International Islamic University Chittagong, 154/a, College Road, Chittagong, 4203, Bangladesh;1. Department of Chemical Engineering, School of Chemistry & Chemical Engineering, and The Key Lab of Low-carbon Chem & Energy Conservation of Guangdong Province, Sun Yat-Sen University, Guangzhou 510275, PR China;2. Department of Chemistry, School of Chemistry & Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China |
| |
| Abstract: | A combination of photocathodic stripping and precipitation was used to prepare CdTe nanoparticles (size range: 30–60 nm) that were immobilized on a polycrystalline Au substrate. Thus visible light irradiation of a Te modified Au surface generated Te2− species in situ followed by interfacial reaction with added Cd2+ ions in 0.1 M Na2SO4 electrolyte. The resultant CdTe compound semiconductor deposited as nanosized particles uniformly dispersed on the Au substrate surface. This approach to CdTe nanoparticle deposition was monitored by a combination of electrochemical methods (voltammetry, chronoamperometry) and quartz crystal microgravimetry in the “dark” and under illumination. The synthesized CdTe nanoparticles were characterized by scanning electron microscopy and energy dispersive X-ray analyses and laser Raman spectroscopy. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
