Archive | 2021
Improved photovoltaic properties of nano-flake-based mesoporous dip-SILAR prepared BiOI electrochemical cell by tuning post-annealing treatment time at 100°C
Abstract
\n\n This research article reports on the post-annealing treatment time effect on the dip-successive ionic layer adsorption and reaction (SILAR) prepared nano-flake-based mesoporous BiOI electrochemical cell s photovoltaic properties. \n\n\n\n\n Our study clarifies that the post-annealing time has a significant impact on the photovoltaic behavior and the nano-flake morphology. \n\n\n\n\nAt 100°C for 90mins post-annealing treatment condition, the surface morphology converted into a connected uniform crystallized flaky structure, which improves the effective surface area and reduces the BiOI/ electrolyte charge transfer resistance confirmed via electrochemical impedance spectroscopy (EIS) analysis. Therefore, the maximum photovoltaic properties (short-circuit current density, Jsc = 1.83mA/cm2, open-circuit voltage, Voc = 0.48V and efficiency = 0.28%) have been observed. However, without annealing and beyond 90mins of post-annealing time, the film quality and crystallinity decreased as a consequence of photovoltaic properties the degraded. \n\n\n\n\n So, our investigation finding is 90mins is the optimal post-annealing treatment duration for the dip-SILAR prepared nano-flake-based mesoporous BiOI electrochemical photovoltaic cell at 100°C post-annealing temperature.\n\n