Nanoporous n-/selenium/p-CuCNS photovoltaic cell

Abstract

On illumination, selenium deposited on nanoporous n- transfers photogenerated electrons into . When p-CuCNS is coated on top of the selenium deposited on nanoporous n-, holes are directed into the p-CuCNS. A photovoltaic cell of nanoporous n-/selenium/p-CuCNS based on the above charge transfer process generates a photocurrent of and a photovoltage of mV at simulated sunlight. The efficiency of the cell seems to be limited by surface recombination and the presence of voids in the film. Photoelectrochemical experiments also indicate that when selenium is deposited on nanoporous n- photogenerated electrons in selenium are efficiently transferred to .