Surfactant mediated synthesis of bismuth selenide thin films for photoelectrochemical solar cell applications

Hydrothermally synthesized nanocrystalline photoactive SnS2 thin films: effect of surface directing agents

“…The first arc in the higher frequency region ascribed to impedance is related to the series resistance (R s ) of the system. 9,34,44,59 The smaller semicircle obtained for sample S2 confirms the generation of a lower charge transfer resistance as compared to all other samples. This means that the smaller the semicircle, the lower charge transfer resistance, which helps to improve the efficiency of a material.…”

“…The band gap energy can be evaluated from the difference between the higher excitation state energy and lower ground state energy during the transition of an electron when exposed to light. 34 The equation given below can help to calculate the data.…”

Cd(Zn, S)Se quaternary thin films for electrochemical photovoltaic cell application

“…Hence, several researchers reported the photoelectrochemical (PEC) properties of chemically deposited chalcogenide thin films. Desai et al reported 1.47% efficiency of Bi 2 Se 3 electrodes deposited by arrested precipitation technique, nanocoral‐like Cd(SSe) thin films deposited by arrested precipitation showed 0.57% efficiency, and (CdZn)Se thin film electrodes with cauliflower morphology revealed increment in conversion efficiency from 0.27% to 0.73% as a function of deposition time . The Cu 2 XSnS 4 (X = Fe, Co, Ni) compositions were deposited by the solution process as CCTS, CFTS, and CNTS photoactive layer on ZnS coated vertically aligned ZnO nanorods.…”

Composition and morphology of copper bismuth selenide layer on glass prepared by chemical conversion technique

“…Bi 2 Se 3 is one of the widely studied material because of its suitable optical properties. Bismuth selenide is a narrow direct band gap semiconductor (E g ∼ 0.3 eV) and its tunable band gap is useful for solar cell applications [8,9]. Bi 2 Se 3 has attracted considerable attention due to its characteristic anisotropic layered structure as well as important applications in the field of optical recording systems and stain gauges [9,10].…”