Enhanced photoresponse of Cu₂ZnSnS₄ absorber thin films fabricated using multi-metallic stacked nanolayers

Abstract

Cu2ZnSnS4 (CZTS) thin films have attracted considerable attention as potential candidates for photovoltaic absorber materials.

Optimizing Cigs Solar Cell Performance: The Impact of Counter Electrode on Electrodeposition Methods

“…The results of CIGS photoresponse I-t fitting are shown in Figure 6 and Table 3. Based on the results obtained, the time required to respond to light when the light is on is faster than when the light is off; this is due to the large number of trap states that are formed when the light is off, thereby slowing down the movement of the photogeneration carrier [28], [29]. If the solar cell has a response to light of no more than 2 seconds, then it can be said that the solar cell has optimal performance.…”

Spin-Coated CZTS Film with a Gradient Cu-Deficient Interfacial Layer for Solar Hydrogen Evolution

“…Photoelectric properties of the CZTS-based photocathode . To elucidate the electrochemical charge-transfer kinetics and interface carrier transport mechanism of CZTS-based photocathodes with the introduction of the GCD-layer, we conducted electrochemical impedance spectroscopy (EIS), which is an effective technique to study the polarization resistance ( R P ) of photocathodes by applying sinusoidal AC signals. ,, Figure a shows the Nyquist plots of CZTS, CZTS-8-8-8, CZTS-8-6-6, and CZTS-8-6-4 photocathodes measured under AM 1.5 G simulated solar radiation at 0.2 V RHE . As illustrated, a widely used equivalent circuit model was employed for curve fitting, − consisting of a series resistance ( R S ) and parallel combination of polarization resistance ( R P ) and constant phase element (CPE), which represent the high-frequency capture and semicircle in the Nyquist plots of CZTS photocathodes, respectively.…”