Natural Antioxidant Vitamin C Improves Photovoltaic Performance of Tin-Lead Mixed Perovskite Solar Cells
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Pages (from-to) | 7214-7220 |
Journal / Publication | Journal of Physical Chemistry Letters |
Volume | 15 |
Issue number | 28 |
Online published | 8 Jul 2024 |
Publication status | Published - 18 Jul 2024 |
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Abstract
The oxidation of Sn2+ can occur even after the completion of the perovskite crystallization in a low oxygen environment. Concerning this, the natural antioxidant vitamin C (VC) is introduced to the surface of Sn-Pb mixed perovskite using a postprocessing method to achieve the purpose of inhibiting Sn2+ oxidation and enhancing perovskite solar cells performance. The results indicate that the VC could effectively inhibit Sn2+ oxidation and heal the vacancy defects of the annealed perovskite film. Meanwhile, the introduction of VC significantly improves the morphology and crystalline quality of the perovskite films. After optimization, the highest power conversion efficiency of the VC-treated Sn-Pb mixed device increased to 20.44%. Moreover, the VC-treated unencapsulated device shows excellent long-term stability, retaining 75.3% of its initial efficiency after 800 h of aging in a N2 atmosphere, which is much higher than the 20.1% of the control device. © 2024 American Chemical Society.
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Natural Antioxidant Vitamin C Improves Photovoltaic Performance of Tin-Lead Mixed Perovskite Solar Cells. / Ding, Xingdong; Yan, Meng; Zhou, Xiaowen et al.
In: Journal of Physical Chemistry Letters, Vol. 15, No. 28, 18.07.2024, p. 7214-7220.
In: Journal of Physical Chemistry Letters, Vol. 15, No. 28, 18.07.2024, p. 7214-7220.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review