Probing the Origin of the Open Circuit Voltage in Perovskite Quantum Dot Photovoltaics.

ABSTRACT: Perovskite quantum dots (PQDs) have many properties that make them attractive for optoelectronic applications, including expanded compositional tunability and crystallographic stabilization. While they have not achieved the same photovoltaic (PV) efficiencies of top-performing perovskite thin films, they do reproducibly show high open circuit voltage (V_OC) in comparison. Further understanding of the V_OC attainable in PQDs as a function of surface passivation, contact layers, and PQD composition will further progress the field and may lend useful lessons for non-QD perovskite solar cells. Here, we use photoluminescence-based spectroscopic techniques to understand and identify the governing physics of the V_OC in CsPbI₃ PQDs. In

SUBMITTER: Wieliczka BM 

PROVIDER: S-EPMC10156082 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature