Nanostructured Solar Cell Performance in Relation to the Anodic Aluminum Oxide Membrane | Original Article
To illustrate how the host anodized aluminum oxide (AAO) membrane influences device performance, three different nanowire solar cell designs have been constructed. The comparable transmittance spectra amongst the three arrangements suggest that the AAO membrane has very low optical absorption. The device's power conversion efficiency (PCE) is investigated, and compared across cell topologies with and without an AAO membrane, as a function of carrier transit and collection. Nanowire solar cells can stand on their own and have a PCE of 9.9. PCE is increased to 11.1-11.3 by including AAO into the solar cell structure, which reduces interface defects and traps brought on by humidity and oxygen, and stops CdTe tentacles from coming into direct touch with SnO2 and forming micro shunt shorts. Partially embedded nanowire solar cells are a desirable construction because they create a high number of carriers in the axial direction and a relatively low number of carriers in the lateral direction, mitigating the effects of non-ideal and non-uniform nanowire development. As a result, the incorporation of an AAO membrane into the design of a solar cell results in improved electro-optical and mechanical characteristics.