Microscopy Visualization of Carrier Transport in CdSeTe/CdTe Solar Cells.

ABSTRACT: Solar cells are essentially minority carrier devices, and it is therefore of central importance to understand the pertinent carrier transport processes. Here, we advanced a transport imaging technique to directly visualize the charge motion and collection in the direction of relevant carrier transport and to understand the cell operation and degradation in state-of-the-art cadmium telluride solar cells. We revealed complex carrier transport profiles in the inhomogeneous polycrystalline thin-film solar cell, with the influence of electric junction, interface, recombination, and material composition. The pristine cell showed a unique dual peak in the carrier transport light intensity decay profile, and the dual peak feature disappeared on a degraded cell after light and heat stressing in the

SUBMITTER: Xiao C 

PROVIDER: S-EPMC9460435 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature