Photovoltaic performance of TCVA-InSe hybrid solar cells based on nanostructure films

- Hybrid organic-inorganic solar cells of ITO/InSe/TCVA/Au have been fabricated.
- The fabricated cell exhibited rectifying characteristics.
- The cell demonstrates improvement in short circuit photocurrent by including InSe layer.
- The power conversion efficiency increased with temperature.

Hybrid organic-inorganic solar cells of the configuration ITO/InSe/TCVA/Au have been fabricated using thermal evaporation technique. The electrical transport mechanisms of the manufactured cell were studied by performing the capacitance-voltage (C-V) and the current density-voltage (J-V) estimations. The TCVA/InSe cell displayed rectifying behavior with a rectification ratio of 157 at ±1 V. At the lower voltages, the dark current density, J, is ruled by the thermionic emission instrument. While a space charge-limited-conduction mechanism was operated at a higher voltage. The fabricated cell demonstrates a significant improvement in the short circuit photocurrent density and the fill factor by including InSe layer, leading to nearly a nine-fold improvement in the conversion efficiency. The temperature dependent on photovoltaic parameters was also investigated in the temperature range of 303-373 K. It found that the power conversion efficiency was increased with the increasing temperature.