Synthesis and characterization of CuO nano-leaves prepared by the simple hot-water-vapor method, the influence of oxidation time duration for solar cell applications
IF 3.3 3区 工程技术Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
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Abstract
The simple hot-water-vapor (HWV) method was used to make the copper oxide nanostructures on Cu sheets for this study. The effects of oxidation times of 8, 16, and 24 h were investigated for use in solar cells. The samples were characterized using FESEM, EDX, XRD, Raman, and DRS measurements. It is found that with increasing the synthesis time duration: (1) the FESEM images showed a combination of cubic and nano-leaves gradually turned into compact nano-leaves; (2) EDX, XRD, and Raman analyses on the samples showed that the layers that were grown got closer to the CuO phase’s elemental ratio, and the crystallite size (D) grew from 17.55 to 34.66 nm; (3) It was found that the CuO phase-related band gap decreased from 1.62 to 1.43 eV as the crystallinity and phase purity of the samples improved, which could be a beneficial property for solar cell applications.
期刊介绍：
Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest.
Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.
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