ZnO nanowires and PbS quantum dots for third-generation solar cells
Résumé
Nanowires and quantum dots hold promising potency to enhance the performance of solar cells by improving light absorption, light trapping, exciton generation, and photoexcited-carrier collection. Quantum dot sensitized solar cells consist of three components: semiconductor quantum dots, one dimensional metal oxide n-type and hole-transport layer materials. In this paper, we present the synthesis and characterization of ZnO nanowires (as an electron acceptor) decorated with lead sulfide (PbS) quantum dots (as an electron donor unit) for photovoltaic applications. In addition to this, the electron injection rate from PbS quantum dots to ZnO nanowires will be discussed