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2D/3D heterojunction engineering at the buried interface towards high-performance inverted methylammonium-free perovskite solar cells

Li, Haiyun ; Zhang, Cong ; Gong, Cheng ; Zhang, Daliang ; Zhang, Hong ; Zhuang, Qixin ; Yu, Xuemeng ; Gong, Shaokuan ; Chen, Xihan ; Yang, Jiabao ; Li, Xuanhua ; Li, Ru ; Li, Jingwei ; Zhou, Jinfei ; Yang, Hua ; Lin, Qianqian ; Chu, Junhao ; Grätzel, Michael ; Chen, Jiangzhao ; Zang, Zhigang

Nature energy, 2023-09, Vol.8 (9), p.946-955 [Periódico revisado por pares]

London: Nature Publishing Group

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Título:
2D/3D heterojunction engineering at the buried interface towards high-performance inverted methylammonium-free perovskite solar cells
Autor: Li, Haiyun ; Zhang, Cong ; Gong, Cheng ; Zhang, Daliang ; Zhang, Hong ; Zhuang, Qixin ; Yu, Xuemeng ; Gong, Shaokuan ; Chen, Xihan ; Yang, Jiabao ; Li, Xuanhua ; Li, Ru ; Li, Jingwei ; Zhou, Jinfei ; Yang, Hua ; Lin, Qianqian ; Chu, Junhao ; Grätzel, Michael ; Chen, Jiangzhao ; Zang, Zhigang
Assuntos: Carrier recombination ; Crystallization ; Degradation ; Energy conversion efficiency ; Heterojunctions ; Inks ; Maximum power tracking ; Perovskite structure ; Perovskites ; Photochemicals ; Photovoltaic cells ; Photovoltaics ; Radiative recombination ; Recombination ; Relative humidity ; Solar cells ; Stability
É parte de: Nature energy, 2023-09, Vol.8 (9), p.946-955
Descrição: The main bottlenecks limiting the photovoltaic performance and stability of inverted perovskite solar cells (PSCs) are trap-assisted non-radiative recombination losses and photochemical degradation at the interface between perovskite and charge-transport layers. We propose a strategy to manipulate the crystallization of methylammonium-free perovskite by incorporating a small amount of 2-aminoindan hydrochloride into the precursor inks. This additive also modulates carrier recombination and extraction dynamics at the buried interface via the formation of a bottom-up two-dimensional/three-dimensional heterojunction. The resultant inverted PSC achieves a power conversion efficiency of 25.12% (certified 24.6%) at laboratory scale (0.09 cm2) and 22.48% at a larger area (1 cm2) with negligible hysteresis. More importantly, the resulting unencapsulated devices show superior operational stability, maintaining >98% of their initial efficiency of >24% after 1,500 hours of continuous maximum power point tracking under simulated AM1.5 illumination. Meanwhile, the encapsulated devices retain >92% of initial performance for 1,200 hours under the damp-heat test (85 °C and 85% relative humidity).To prevent charge losses and degradation at the buried interface of inverted methylammonium-free perovskite solar cells, Li et al. form a 2D/3D perovskite structure using 2-aminoindan hydrochloride as an additive.
Editor: London: Nature Publishing Group
Idioma: Inglês

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2D/3D heterojunction engineering at the buried interface towards high-performance inverted methylammonium-free perovskite solar cells

Li, Haiyun ; Zhang, Cong ; Gong, Cheng ; Zhang, Daliang ; Zhang, Hong ; Zhuang, Qixin ; Yu, Xuemeng ; Gong, Shaokuan ; Chen, Xihan ; Yang, Jiabao ; Li, Xuanhua ; Li, Ru ; Li, Jingwei ; Zhou, Jinfei ; Yang, Hua ; Lin, Qianqian ; Chu, Junhao ; Grätzel, Michael ; Chen, Jiangzhao ; Zang, Zhigang

London: Nature Publishing Group

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