| Autor: |
Hutter, Eline M., Kirchartz, Thomas, Ehrler, Bruno, Cahen, David, von Hauff, Elizabeth |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Applied Physics Letters 116, 100501 (2020) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1063/1.5143121 |
| Popis: |
Perovskite photovoltaics has witnessed an unprecedented increase in power conversion efficiency over the last decade. The choice of transport layers, through which photo-generated electrons and holes are transported to the electrodes, is a crucial factor for further improving both the device performance and stability. In this perspective, we critically examine the application of optical spectroscopy to characterize the quality of the transport layer-perovskite interface. We highlight the power of complementary studies that use both continuous wave (cw) and time-resolved photoluminescence (PL) to understand non-radiative losses, and additional transient spectroscopies for characterizing the potential for loss-less carrier extraction at the solar cell interfaces. Based on this discussion, we make recommendations on how to extrapolate results from optical measurements to assess the quality of a transport layer, and its impact on solar cell efficiency. |
| Databáze: |
arXiv |
| Externí odkaz: |
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