Study unveils factors limiting the voltage of polycrystalline CdSeTe solar cells

https://techxplore.com/news/2022-03-unveils-factors-limiting-voltage-polycrystalline.html

"contacts to CdSeTe solar cells are not necessarily perfect, as many researchers assumed, as they often contribute to voltage losses in the devices. In addition, the results of their analyses suggest that the bulk absorber in these cells is highly promising, but its performance is not fully realized without excellent semi-permeable membranes... Se and As alloying have detrimental material effects that limit the achievable voltage independent of the other sources of losses"