Annealing effects on the structural and optical properties of AgIn5S8 thin films

Optical and structural properties of CuO nanofilm: Its diode application

“…After application of the annealing process, the CuO film with weak crystal orientation crystallizes to monoclinic phase that has prominent diffraction peaks. There are some works that support this case [20][21][22][23][24][25]. For example, Caglar et al [25] have recently reported that ZnO films could be fabricated by a sol-gel spin coating on (1 0 0) p-type silicon substrates.…”

“…The substrates have been spin coated at 1000 rpm and then accelerated to the final rotation speed. The final rotation speed has been adjusted 3000 rpm for 20-30 s. After coating, the samples have been annealed in oxygen atmosphere at 350 • C for 2 h. The annealing treatment is widely known as a conventional and an effective technique to improve the crystalline quality [20][21][22][23][24][25]. In other words, the annealing process generally crystallizes the film structure.…”

Photoconductivity kinetics in AgIn5S8 thin films

“…So, it is very likely that the film consists of S-poor In 2 S 3 with some dissolved Ag 2 S. This possibility was checked and removed by the optical transition spectral analysis reported in Ref. [11]. In that reference we have determined the energy band gap of the AgIn 5 S 8 as 1.78 eV (coincide with that reported for pure AgIn 5 S 8 films [3]).…”

“…The structural, compositional [4] and optical properties [11] of the AgIn 5 S 8 thin films were previously reported. In that works we have shown that the films are single-phased crystalline AgIn 5 S 8.…”

“…In our previous works, we have studied some of the physical properties of the AgIn 5 S 8 thin films [4,10,11]. Namely, the thin film growth conditions, the as grown film's electrical and optical properties in addition to the post annealing effects at temperatures of 450 K and 600 K on the structural and optical properties of the films has been reported.…”