Mohd Zubair Ansari

Abstract: The temperature dependence of electrical conductivity of the Cu2ZnSnS4 (CZTS) thin films has been measured in order to identify the dominant conduction mechanism. These CZTS film have been deposited by ultrasonic assisted chemical vapor deposition method at different substrate temperatures in a single step process. All the films exhibit p-type semiconducting behaviour. In the high temperature range (> 250 K), the dominance of thermally activated band conduction is observed, whereas in the lower temperature region (250−70 K), the hopping conduction is present. Detailed analysis of the temperature dependence of conductivity of the films reveals that in the temperature range from 250–170 K, nearest neighbour hopping dominates, whereas in the lower temperature region (170–70 K), the dominant hopping conduction is Mott's 3D variable range hopping and not Efros-Shklovskii variable range hopping. The value of Mott's temperature is found to decrease for the CZTS films deposited at higher temperature, which has be...

TL;DR: In this article, the effect of substrate temperature on the structural and optical properties of thin CZTS films has been investigated, showing a tetragonal structure with preferential orientation along the (112) plane.

TL;DR: In this article, a superhydrophobic coating material (PA-ZnO) with a static water contact angle (WCA)>160° has been synthesized by modifying zinc oxide nanoparticles with room temperature stable palmitic acid (PA).

TL;DR: In this paper, a tandem photoanode consisting of Cu2ZnSnS4 (CZTS) nanoparticles layer over CdS/TiO2 heterostructure thin film on FTO substrate has been fabricated for photoelectrochemical hydrogen generation.

TL;DR: In this paper, a super hydrophobic transparent thin film using Mn doped zinc oxide (Mn/ZnO) and polystyrene (PS) composites has been synthesized successfully by chemical solution method.