Air-stable mixed cation lead halide perovskite films and microscopic study of their degradation process

Agarwal, Anubha; Omagari, Shun; Vácha, Martin

doi:10.1039/d3nr02003g

Cited by 3 publications

(1 citation statement)

References 43 publications

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“…[4][5][6][7][8] Moreover, this remarkable progress in PCE is also a result of identifying various fabrication routes, exploration of new perovskite materials, and extensive research on charge-transport layers. [9][10][11][12][13] Nevertheless, despite their high PCE, sustaining long-term stability remains a challenge for PSCs. PSCs undergo degradation due to various extrinsic factors such as moisture, UV light, oxygen, and heat, as well as intrinsic factors such as defects and ion migration, which eventually shorten the device's lifespan.…”

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confidence: 99%

Thermal Stability Analysis of Formamidinium–Cesium‐Based Lead Halide Perovskite Solar Cells Fabricated under Air Ambient Conditions

Boro,

Mishra,

Singh

et al. 2024

Energy Tech

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The instability of perovskite solar cells (PSCs) remains a major bottleneck for their commercialization, with thermal instability posing a major concern, given the inevitable presence of heat in photovoltaic devices. Mixed‐cation/halide perovskites demonstrate enhanced stability and efficiency compared to single‐cation/halide perovskites. Identifying the optimal perovskite composition capable of withstanding high temperatures for longer durations is crucial for the development of thermally stable PSCs. This study provides valuable insights into the optimization of mixed‐cation/halide perovskites to enhance the thermal and structural stability of perovskite films. By systematically varying the Cs content in FA1−yCsyPb(I0.85Br0.15)3 (0 < y < 25)‐based perovskite, it is observed that controlling the Cs content allows precise modulation of crystal orientation in perovskite film with 10% Cs obtained as the optimal value. The perovskite film containing 10% Cs not only exhibits reduced microstrain but also demonstrates enhanced thermal stability during testing at 85 °C under controlled humidity. Furthermore, planar PSCs are fabricated using FA0.90Cs0.10Pb(I0.85Br0.15)3 as the absorber layer and TOP‐3 as the hole‐transporting material, achieving a promising power conversion efficiency (PCE) of 17.70%. Impressively, the unencapsulated devices retain 95% of their initial PCE after 1000 h of dark storage under ambient conditions.

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confidence: 99%

Thermal Stability Analysis of Formamidinium–Cesium‐Based Lead Halide Perovskite Solar Cells Fabricated under Air Ambient Conditions

Boro,

Mishra,

Singh

et al. 2024

Energy Tech

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Efficient perovskite light-emitting diodes achieved by suppressing the acidic surface of PEDOT:PSS films

Peng,

Wang,

Wang

et al. 2024

Chemical Engineering Journal

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Improving Photovoltaic Performance of Inverted Perovskite Solar Cells by Introducing a B −N Covalent Conjugate Molecular as the Grain Boundary Repair Agent

Shuting,

Tu,

Deng

et al. 2024

Preprint

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Air-stable mixed cation lead halide perovskite films and microscopic study of their degradation process

Abstract: We report preparation and nanoscale photophysical characterization of mixed cation perovskites films of the composition MA1-xFAxPbI3, with x = 0, 0.3 and 0.5. The films with x = 0.5 and...

Cited by 3 publications

References 43 publications

Thermal Stability Analysis of Formamidinium–Cesium‐Based Lead Halide Perovskite Solar Cells Fabricated under Air Ambient Conditions

Thermal Stability Analysis of Formamidinium–Cesium‐Based Lead Halide Perovskite Solar Cells Fabricated under Air Ambient Conditions

Efficient perovskite light-emitting diodes achieved by suppressing the acidic surface of PEDOT:PSS films

Improving Photovoltaic Performance of Inverted Perovskite Solar Cells by Introducing a B −N Covalent Conjugate Molecular as the Grain Boundary Repair Agent

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