| Autor: |
Lang, F, Eperon, GE, Frohna, K, Tennyson, EM, Al-Ashouri, A, Kourkafas, G, Bundesmann, J, Denker, A, West, KG, Hirst, LC, Neitzert, HC, Stranks, SD |
| Přispěvatelé: |
Lang, F [0000-0001-9711-380X], Apollo - University of Cambridge Repository |
| Rok vydání: |
2021 |
| Předmět: |
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| Popis: |
Radiation-resistant but cost-efficient, flexible, and ultralight solar sheets with high specific power (W g−1) are the “holy grail” of the new space revolution, powering private space exploration, low-cost missions, and future habitats on Moon and Mars. Herein, this study investigates an all-perovskite tandem photovoltaic (PV) technology that uses an ultrathin active layer (1.56 μm) but offers high power conversion efficiency, and discusses its potential for high-specific-power applications. This study demonstrates that all-perovskite tandems possess a high tolerance to the harsh radiation environment in space. The tests under 68 MeV proton irradiation show negligible degradation (22%. Using high spatial resolution photoluminescence (PL) microscopy, it is revealed that defect clusters in GaAs being responsible for the degradation of current space-PV. By contrast, negligible reduction in PL of the individual perovskite subcells even after the highest dose studied is observed. Studying the intensity-dependent PL of bare low-gap and high-gap perovskite absorbers, it is shown that the VOC, fill factor, and efficiency potentials remain identically high after irradiation. Radiation damage of all-perovskite tandems thus has a fundamentally different origin to traditional space PV. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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