1. Effect of air and nitrogen annealing on TiO2/Cu2O heterojunction photoelectrochemical solar cells
- Author
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Pavan K. Pagare, A. P. Torane, and K.G. Kanade
- Subjects
Materials science ,Polymers and Plastics ,Scanning electron microscope ,Annealing (metallurgy) ,Metals and Alloys ,chemistry.chemical_element ,Heterojunction ,02 engineering and technology ,Photoelectrochemical cell ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Electrochemistry ,01 natural sciences ,Nitrogen ,0104 chemical sciences ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Biomaterials ,chemistry ,Chemical engineering ,X-ray photoelectron spectroscopy ,Oxidation state ,0210 nano-technology - Abstract
TiO2/Cu2O heterojunction solar cells have been successfully synthesized by an electrochemical route. The structural, morphological and optical properties of TiO2/Cu2O heterojunction solar cells were studied using x-ray diffraction, scanning electron microscopy and UV–vis spectroscopic techniques. The change in morphology is observed due to the effect of the annealing atmosphere on TiO2/Cu2O heterojunction. The surface morphological study shows truncated triangular and nanostar-like Cu2O material using air and nitrogen annealing. The oxidation state of TiO2 and Cu2O materials was studied by x-ray photoelectron spectroscopy. The J–V characteristics curve shows maximum 0.31% photoconversion efficiency of nitrogen-annealed TiO2/Cu2O heterojunction solar cells.
- Published
- 2017
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