Temperature dependent properties of spray deposited Cu2CoSnS4 (CCTS) thin films

Role of carbon quantum dot for enhanced performance of photo-absorption in Cu2CoSnS4 superstrate solar cell device

“…The band gap of the samples decreased due to the enhancement of crystallite size, owing to strong quantum confinement in nano-sized crystals. [37][38][39] Further, Maldar et al 18 observed a red shift in the band gap values. The decrease in the band gap energy was ascribed to improvement of the crystallinity of thin film with increasing temperature.…”

“…It was known that there was a strong relation between the crystallite size and the optical band gaps for the solar absorber materials. The band gap of the samples decreased due to the enhancing of crystallite size, owing to strong quantum confinement in nano sized crystals [37][38][39]. Further, Maldar et al [18] observed red shift in the band gap values.…”

Effect of the substrate temperature on the synthesis of the Cu2CoSnS4 thin films by spray pyrolysis for solar cells devices

“…The thicknesses of CCTS films deposited at different substrate temperatures such as 280, 320, 360, and 400 °C are 4.5, 1.2, 1.2, and 1 µm, respectively. The relatively large thickness of the film deposited at 280 °C is probably due to incomplete thermal decomposition of the spray droplets [16] [17] [18].…”

Synthesis and photocatalytic property of Cu 2 CoSnS 4 nanocrystals with stannite and wurtzite structure

“…However, As far as we all know, CCTS has never been studied as photocatalytic material. To date, CCTS compounds have been synthesised by some approaches [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Compared with other methods, the solvothermal approach has some advantages, such as small grain sizes and easier operation.…”