Print Email Facebook Twitter Slow Shallow Energy States as the Origin of Hysteresis in Perovskite Solar Cells Title Slow Shallow Energy States as the Origin of Hysteresis in Perovskite Solar Cells Author van Heerden, Rik (Student TU Delft) Procel Moya, P.A. (TU Delft Photovoltaic Materials and Devices; Universidad San Francisco de Quito) Mazzarella, L. (TU Delft Photovoltaic Materials and Devices) Santbergen, R. (TU Delft Photovoltaic Materials and Devices) Isabella, O. (TU Delft Photovoltaic Materials and Devices) Date 2022 Abstract Organic-inorganic metal halide perovskites have attracted a considerable interest in the photovoltaic scientific community demonstrating a rapid and unprecedented increase in conversion efficiency in the last decade. Besides the stunning progress in performance, the understanding of the physical mechanisms and limitations that govern perovskite solar cells are far to be completely unravelled. In this work, we study the origin of their hysteretic behaviour from the standpoint of fundamental semiconductor physics by means of technology computer aided design electrical simulations. Our findings identify that the density of shallow interface defects at the interfaces between perovskite and transport layers plays a key role in hysteresis phenomena. Then, by comparing the defect distributions in both spatial and energetic domains for different bias conditions and using fundamental semiconductor equations, we can identify the driving force of hysteresis in terms of slow recombination processes and charge distributions. Subject TCAD senaturushysteresisperovskite solar cell device simulationdefect states simulationsdefect distribution model To reference this document use: http://resolver.tudelft.nl/uuid:b6bfb581-d217-46f4-b073-04729dc51116 DOI https://doi.org/10.3389/fphot.2022.889837 ISSN 2673-6853 Source Frontiers in Photonics, 3 Part of collection Institutional Repository Document type journal article Rights © 2022 Rik van Heerden, P.A. Procel Moya, L. Mazzarella, R. Santbergen, O. Isabella Files PDF fphot_03_889837.pdf 3.31 MB Close viewer /islandora/object/uuid:b6bfb581-d217-46f4-b073-04729dc51116/datastream/OBJ/view