Solvothermal synthesis, deposition and characterization of cadmium selenide (CdSe) thin films by thermal evaporation technique

Effect of thickness on structural, optical, electrical and morphological properties of nanocrystalline CdSe thin films for optoelectronic applications

“…It is found to increase for thickness 810 nm which revealed the coalescence or aggregation of small nanocrystalline particles and variation in corresponding FWHM of the prominent reflection [10]. The large grain size indicated the high smoothness of the films deposited on the surface of substrate.…”

“…Among this group, cadmium selenide (CdSe) is a well-known compound semiconductor having direct band gap 1.74 eV at room temperature, high absorption coefficient in the visible range and often possess n-type conductivity [10]. The discrete electronic energy levels in the microscopic structure of nanocrystalline CdSe films are found due to quantum confinement effect [11].…”

“…The CdSe thin films may be deposited employing a number of techniques like thermal evaporation [3,10], chemical bath deposition [14,15], electro-deposition [16][17][18][19], hot wall deposition [20], spray pyrolysis [21], SILAR [22], etc. These techniques have their own merits and demerits.…”

Fabrication and Optical Characterization of CdSe Thin Films Grown by Chemical Bath Deposition

“…Due to its tunable band gap, CdSe can vary its optical response from the infrared region to the ultraviolet using different deposition techniques, such as electrochemical [7], successive ionic layer adsorption and reaction (SILAR) [8], molecular beam epitaxy (MBE) [9], solvothermal [10] and chemical bath deposition (CBD) [11], etc. The CBD method for the deposition of thin films from an aqueous solution is a promising technique because of its simplicity, affordability, convenience for large-scale deposition and having easily-controllable parameters such as concentration, pH, deposition temperature and deposition time, etc.…”

Co-evaporation of transition metal salt and SiO powder toward copper(or nickel)/silicon-contained composite nanostructures

“…Thermal evaporation [1][2][3][4][5][6][7][8], one of the techniques to produce metal elements/silicon-contained composite nanostructures, has attracted much attention in recent years due to its low cost and ease of manufacture [9][10][11][12][13]. In this technique, low-melting-point metals and SiO powder were selected as catalyst and Si source, respectively, to synthesize the composite nanostructures.…”