Preparation and Characterization of Nano Cu2S Starting from Nano CdS

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Chinese explanation / 中文解读

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Original abstract

Nanoparticles (NP) have emerged as useful building blocks for various Semiconductor devices as well as processes. Currently, large attention is gained by Cadmium Sulfide (CdS) nanoparticles when weighed against others due to remarkable electrical, optical, and surface properties. Also, Cu?S is an inexpensive and attractive photovoltaic material because of its large minority carrier diffusion length as well as lower sheet resistivity. These characteristics make Cu?S a favourable candidate for usage in thin film solar cells as well as related semiconductor applications. The preparation, along with characterization of nanostructured Cu2S from nanoCdS films attained by a Chemical Bath Deposition (CBD) process is presented in this work. This material has been characterized with a wide range of analysis methodologies like X-ray diffraction study (XRD), absorption spectrum studies, along with Fourier Transform InfraRed (FTIR) spectroscopy. The Cu2S nano-films' optical band gap was determined from the absorbance versus energy graph, employing UV-VIS-NIR spectra. Study of the effect of various experimental conditions, like number of dips as well as time period of immersion in CuCl2 solution, were also made.

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