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| Hauptverfasser: | , , , , , , , , , |
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| Format: | Artículo Open Access |
| Veröffentlicht: |
Wiley
2025
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| Online-Zugang: | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.202500196 |
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Inhaltsangabe:
- Improving Moisture Proof and Heat Dissipation of Perovskite Solar Cells with Metal Oleate Passivation Layer Zhe Wan Liping Yang Zhen Liang Shuxia Li Li Chen Xin Liu Peng Li Yangjun Xia Ning Kang Chenglong Wang ChemSusChem Europium oleate (Eu(OA)3) is designed as a multifunctional passivation layer coated onto methylammonium lead iodide (MAPbI3) films to delay the degradation of perovskite solar cells (PSCs) caused by moisture and heat. The carbonyl group and Eu3+ ions of Eu(OA)3 subsequently coordinate with uncoordinated Pb2+ and I− ions to form a moisture‐proof and heat‐dissipating layer anchored onto both top and side surfaces of the perovskite film. The hydrophobicity of the MAPbI3 film treated by Eu(OA)3 remarkably increases, as demonstrated by the enhancement of the average contact angle from 54.9° to 90.5°. Besides, the thermal conductivity of PSCs incorporated with Eu(OA)3 is 1.3 times that of the control device, resulting in a 1.34 °C reduction on surface temperature at 85 °C. The optimized PSCs demonstrate a T80 lifetime of 1056 h (only 180 h for pristine PSCs) at conditions of room temperature and relative humidity (RH) of 40%. Moreover, the T80 lifetime for optimized PSCs is four times that of the control device at 85 °C and RH of 85%. Finally, the power conversion efficiency (PCE) of PSCs treated with Eu(OA)3 increases from 17.36 to 18.99%, attributed to the effective defect passivation and suppression of nonradiative recombination. 10.1002/cssc.202500196 http://onlinelibrary.wiley.com/termsAndConditions#vor