Progress and challenges in the fabrication of lead-free all-inorganic perovskites solar cells using solvent and compositional engineering Techniques-A review

Masawa, Salma Maneno; Bakari, Ramadhani; Xu, Jia; Yao, Jianxi

doi:10.1016/j.jssc.2022.123608

Cited by 7 publications

(2 citation statements)

References 120 publications

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“…Metal halide perovskites currently develop toward a promising alternative in future energy applications due to their unique properties as semiconducting materials and their ease of processing from solution-based methods. ,− Understanding their contact formation to metal electrodes or other semiconductor layers and the response to an applied voltage plays a crucial role for the possible use in electronic devices such as light-emitting diodes, , thin-film transistors, − or solar cells. − …”

Section: Introductionmentioning

confidence: 99%

Transformation of Polarization Mechanisms by Dimensional Reduction in Lead-Free Silver Bismuth Bromide Double-Perovskite Thin Films

Schneider,

Glaser,

Horn

et al. 2024

ACS Appl. Electron. Mater.

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Lead-free halide perovskite materials are discussed as alternative materials to replace lead-containing perovskites and minimize risks to human health and the environment. Dimensional reduction of the octahedral metal halide network by incorporating larger organic cations including phenethylammonium (PEA) represents an attractive opportunity to tailor their properties toward applications. Here, differences in characteristics under an applied constant voltage are detected, which arise from the dimensional reduction of the Cs 2 AgBiBr 6 double-perovskite to (PEA) 4 AgBiBr 8 . Thin films consisting of these compounds were spincoated onto microstructured interdigitated electrode arrays. Current− voltage and Kelvin probe force microscopy measurements were performed to reveal the overall or locally resolved consequences of an applied electric field. Both materials showed a reversible ion displacement in small electric fields. At higher field strengths, however, Cs 2 AgBiBr 6 exhibited a persistent contact modification at the interface of the perovskite and the contact metal due to migrating ions, whereas (PEA) 4 AgBiBr 8 still showed a reversible separation of ions. Insulating interlayers that widely attenuate the current demonstrate that these effects are induced by electric fields only, independent of charge injection. The obtained results provide an explanation of improvements of perovskite contacts by interfacial engineering, in particular, describing how a two-dimensional (2D) perovskite layer reduces the hysteresis and interfacial resistance in contact to a three-dimensional (3D) double-perovskite.

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Section: Introductionmentioning

confidence: 99%

Transformation of Polarization Mechanisms by Dimensional Reduction in Lead-Free Silver Bismuth Bromide Double-Perovskite Thin Films

Schneider,

Glaser,

Horn

et al. 2024

ACS Appl. Electron. Mater.

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“…This advancement in PCE paves the way for perovskite thin film material toward overcoming the lead toxicity challenge [13][14][15][16]. Moreover, perovskites made with all-inorganic lead-free absorbers have demonstrated superior stability in the face of humidity, light, and heat [13,[17][18][19]. Allinorganic lead-free perovskites solar cells created by chemically combining Cs, Bi, and halide elements are among the lead-free compounds under investigation [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Characterization of a Lead-Free Cesium Bismuth Iodide Perovskite through Antisolvent-Assisted Crystallization

Masawa,

Zhao,

Liu

et al. 2024

Nanomaterials

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Cesium bismuth iodide perovskite material offers good stability toward ambient conditions and has potential optoelectronic characteristics. However, wide bandgap, absorber surface roughness, and poor surface coverage with pinholes are among the key impediments to its adoption as a photovoltaic absorber material. Herein, bandgap modification and the tailoring of surface morphology have been performed through molar ratio variation and antisolvent treatment, whereby type III antisolvent (toluene) based on Hansen space has been utilized. XRD and Raman spectroscopy analyses confirm the formation of a 0D/2D mixed dimensional structure with improved optoelectronic properties when the molar ratio of CsI/BiI3 was adjusted from 1.5:1 to 1:1.5. The absorption results and Tauc plot determination show that the fabricated film has a lower bandgap of 1.80 eV. TRPL analysis reveals that the film possesses a very low charge carrier lifetime of 0.94 ns, suggesting deep defects. Toluene improves the charge carrier lifetime to 1.89 ns. The average grain size also increases from 323.26 nm to 444.3 nm upon toluene addition. Additionally, the inclusion of toluene results in a modest improvement in PCE, from 0.23% to 0.33%.

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First-principles study on structural, electronic, and optical properties of mixed alloys of Cs2Ag(SbxBi1−x)Br6 double perovskites for optoelectronic applications

Thatribud,

Rassamesard

2024

Computational Materials Science

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Progress and challenges in the fabrication of lead-free all-inorganic perovskites solar cells using solvent and compositional engineering Techniques-A review

Cited by 7 publications

References 120 publications

Transformation of Polarization Mechanisms by Dimensional Reduction in Lead-Free Silver Bismuth Bromide Double-Perovskite Thin Films

Transformation of Polarization Mechanisms by Dimensional Reduction in Lead-Free Silver Bismuth Bromide Double-Perovskite Thin Films

Fabrication and Characterization of a Lead-Free Cesium Bismuth Iodide Perovskite through Antisolvent-Assisted Crystallization

First-principles study on structural, electronic, and optical properties of mixed alloys of Cs2Ag(SbxBi1−x)Br6 double perovskites for optoelectronic applications

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