CdS sensitized pristine and Cd doped ZnO solar cells: Effect of SILAR cycles on optical properties and efficiency

n–n ZnO–Ag2CrO4 heterojunction photoelectrodes with enhanced visible-light photoelectrochemical properties

“…Similar phenomena were also observed by other researchers. [41][42][43] In general terms, the approximate optical band-gap energies of the photoelectrodes can be obtained from the Kubelka-Munk band gap estimation theory. Based on the literature, we infer that both ZnO and Ag 2 CrO 4 have direct transition semiconductors.…”

Study of the photocatalysis and increase of antimicrobial properties of Fe3+and Pb2+ co-doped ZnO nanoparticles obtained by microwave-assisted hydrothermal method

“…The ZnO doping can be made with several materials aiming an increase for defects in the lattice and, consequently, greater generation of e -/h + pairs and reduction in its band gap energy (Egap) [21,22]. Among these materials, the transition metals like Fe, Co, Ni, Cu, Cd, Ag, Bi, Pb, stand out [22][23][24][25][26].…”

Synthesis of Binary Bi2S3/ZnO Nanorod Array Heterostructure and Their Photoelectrochemical Performance

“…Apart from the impact of SILAR cycles on the PEC performance, the results revealed that the photocurrent density increased remarkably when the SILAR cycles increased from 3 to 7 cycles as a result of increasing the amount of Bi 2 S 3 deposit on ZnO NRs uniformly before showing reduction for further cycles. The lesser photocurrent due to the increment of photogenerated electron resistance and delayed penetration of multisulphide electrolyte in the thin film was a result of agglomeration of small size of Bi 2 S 3 on ZnO NRs which reduced the spaces between the nanorods [32]. Moreover, the increasing of the SILAR cycles formed cluster of Bi 2 S 3 which might block the light from penetrating through to the irradiated ZnO NRAs.…”