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Renewable and Sustainable Composites || Methodologies for Achieving 1D ZnO Nanostructures Potential for Solar Cells
摘要： One-dimensional (1D) nanostructures are generally used to describe large aspect ratio rods, wires, belts, and tubes. The 1D ZnO nanostructures have become the focus of research owing to its unique physical and technological significance in fabricating nanoscale devices. When the radial dimension of the 1D ZnO nanostructures decreases to some lengths (e.g., the light wavelength, the mean of the free path of the phonon, Bohr radius, etc.), the effect of the quantum mechanics is definitely crucial. With the large surface-to-volume ratio and the confinement of two dimensions, 1D ZnO nanostructures possess the captivating electronic, magnetic, and optical properties. Furthermore, 1D ZnO nanostructure’s large aspect ratio, an ideal candidate for the energy transport material, can conduct the quantum particles (photons, phonons, electrons) to improve the relevant technique applications. To date, many methods have been developed to synthesize 1D ZnO nanostructures. Therefore, methodologies for achieving 1D ZnO nanostructures are expressed, and the relevant potential application for solar cells are also present to highlight the attractive property of 1D ZnO nanostructures.
关键词： hydrothermal,nanostructures,one dimensional,ZnO,solar cell,chemical vapor transport and condensation (CVTC),vapor-liquid-solid (VLS),electrochemical,metal-organic chemical vapor deposition (MOCVD),chemical vapor deposition (CVD)
更新于2025-09-11 14:15:04
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Growth and Characterization of Indium Oxide, Zinc Oxide and Cadmium Sulfide Nanowires by Vapor-Liquid-Solid Growth Technique
摘要： In this study, the growth of three important semiconductor nanowires, Zinc Oxide, Indium Oxide and Cadmium Sulfide nanowires using the vapor–liquid–solid (VLS) method has been investigated. Different growth recipes with different growth parameters were incorporated to synthesize high quality and long NWs. It attempts to provide precise growth recipes which lead to high quality of nanowires. The effect of different growth conditions such as growth temperature, carrier gas flow, presence of metal catalyst and growth time has been investigated. Also, to evaluate the crystal quality of the nanowires, photoluminescence (PL) spectra of the as grown nanowires were investigated.
关键词： Cadmium sulfide (CdS),Zinc Oxide,Nanowires,Indium Oxide,vapor liquid solid (VLS) growth
更新于2025-09-09 09:28:46
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Optoelectronic and photocatalytic properties of zinc sulfide nanowires synthesized by vapor-liquid-solid process
摘要： Zinc sul?de (ZnS) is a wide band-gap semiconductor with excellent optoelectronic properties suitable for photo-sensing devices and photocatalysts. Herein, the ZnS nanowires (ZnS NWs) have been successfully synthesized using thermal evaporation based on vapor-liquid-solid (VLS) method. From the examinations of photosensing device under ultraviolet B (UVB) irradiation, the photocurrent gain (Pg), responsivity (Rλ), response time and recovery time are 0.572, 2.761 mW/cm2, 3.2 s and 3.6 s, respectively. As to photocatalytic activity for methylene blue (MB), the apparent rate coe?cient (K) of ZnS NWs is 9.78 × 10?3 (min?1). Although ZnS NWs-based photodetector cannot be workable under ultraviolet A (UVA) irradiation, with referring to recent medical literatures, UVB radiation is the major environmental risk factor for developing human skin cancer, the most common cancer worldwide. Thus, the most important contribution in this work is that the ZnS NWs-based UVB radiation-oriented photodetector has been successfully demonstrated via a simple process.
关键词： Photodetector,Zinc sul?de nanowires (ZnS NWs),Photocurrent gain (Pg),Optoelectronic,Vapor-liquid-solid (VLS),Apparent rate coe?cient (K),Responsivity (Rλ),Ultraviolet B (UVB) irradiation
更新于2025-09-04 15:30:14