Organic–inorganic bismuth (III)-based material: A lead-free, air-stable and solution-processable light-absorber beyond organolead perovskites

Lyu, Miaoqiang; Yun, Jung‐Ho; Cai, Molang; Jiao, Yalong; Bernhardt, Paul V.; Zhang, Meng; Wang, Qiong; Du, Aijun; Wang, Hongxia; Liu, Gang; Wang, Luyao

doi:10.1007/s12274-015-0948-y

Cited by 369 publications

(359 citation statements)

References 27 publications

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“…With regard to the electronic band structure, DFT calculations predict an indirect character of the band gap with values of ca. 2.25 eV [175, 181], which are in good agreement with the experimental values (1.94-2.11 eV) [175, 176, 181]. In addition, (CH 3 NH 3 ) 3 Bi 2 I 9 exhibits a strong absorption band around 500 nm, a pre-edge absorption peak at 2.51 eV indicating the existence of intrinsic excitons, and a high optical absorption coefficient in the order of 10 5 cm −1 comparable to that of lead-based analogues [36, 169, 176, 177, 184].…”

Section: Heterovalent Substitution With Mono- Tri- and Tetravalent Cmentioning

confidence: 99%

Progress on lead-free metal halide perovskites for photovoltaic applications: a review

2017

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Metal halide perovskites have revolutionized the field of solution-processable photovoltaics. Within just a few years, the power conversion efficiencies of perovskite-based solar cells have been improved significantly to over 20%, which makes them now already comparably efficient to silicon-based photovoltaics. This breakthrough in solution-based photovoltaics, however, has the drawback that these high efficiencies can only be obtained with lead-based perovskites and this will arguably be a substantial hurdle for various applications of perovskite-based photovoltaics and their acceptance in society, even though the amounts of lead in the solar cells are low. This fact opened up a new research field on lead-free metal halide perovskites, which is currently remarkably vivid. We took this as incentive to review this emerging research field and discuss possible alternative elements to replace lead in metal halide perovskites and the properties of the corresponding perovskite materials based on recent theoretical and experimental studies. Up to now, tin-based perovskites turned out to be most promising in terms of power conversion efficiency; however, also the toxicity of these tin-based perovskites is argued. In the focus of the research community are other elements as well including germanium, copper, antimony, or bismuth, and the corresponding perovskite compounds are already showing promising properties.Graphical abstract

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Section: Heterovalent Substitution With Mono- Tri- and Tetravalent Cmentioning

confidence: 99%

Progress on lead-free metal halide perovskites for photovoltaic applications: a review

2017

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“…Replacement of lead with bismuth (Bi) in perovskite defect materials (CH3NH3)3Bi2I9 (MBI) exposed for forty days in ambient air showed no clear degradation. This shows that defect perovskite material may be viable option for perovskite PV stability [89].…”

Section: Replacement Of Cationsmentioning

confidence: 86%

Progress and Prospect on Stability of Perovskite Photovoltaics

2017

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A B S T R A C TSolar energy has the potential to solve world energy problem as it is pollution-free. It could be enhanced using perovskite material as absorber in perovskite solar cells. The history and what this material is made up of are emphasized. Different methods of fabrication, improving the power conversion efficiency (PCE) and factors influencing degradation of perovskite based solar are stated. Because of the fact that this material based solar cells are not yet developed, its stability was reviewed to bring different technology employed in tackling the stability aiming for a better understanding of the material and the devices, and facilitates the commercialization of perovskite solar cell.

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“…Previous study has demonstrated the stability of MA 3 Bi 2 I 9 in ambient environment for more than 40 days [72]. Nevertheless, the performance efficiency was sub-par with conventional structure (0.19%) and inverted planar structure (0.1%) [86,87]. On the other hand, Cs 3 Bi 2 I 9 perovskite had performed slightly better at 1.09% efficiency [72].…”

Section: Lead-free Perovskite Solar Cellmentioning

confidence: 92%

“…Bi-based perovskite, A 3 Bi 2 X 9 has attracted considerable attention due to its interesting properties [72,86,87,[101][102][103][104]. Bi-based perovskite have excellent stability towards moisture and less toxic compared to Pb-based perovskite.…”

Section: Lead-free Perovskite Solar Cellmentioning

confidence: 99%

Progress towards highly stable and lead-free perovskite solar cells

Mutalib

Ludin

Ruzalman

et al. 2018

Mater Renew Sustain Energy

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High-performance perovskite solar cells have attracted increased attention for photovoltaic applications and potentially replacing the predecessor generations. Nevertheless, the stability issues and the lead content has always been among the major concerns that barriers perovskite solar cells from commercialization. This review presents the discussion towards the inherent instability of perovskite solar cells and the development towards replacing lead with discussion towards their performance and challenges. The degradation of perovskite active layer would release toxic substance into the environment. The development towards low-toxic, lead-free and efficient perovskite solar cells is the key for a sustainable solar energy generation with the application of perovskite solar cells.

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Organic–inorganic bismuth (III)-based material: A lead-free, air-stable and solution-processable light-absorber beyond organolead perovskites

Cited by 369 publications

References 27 publications

Progress on lead-free metal halide perovskites for photovoltaic applications: a review

Progress on lead-free metal halide perovskites for photovoltaic applications: a review

Progress and Prospect on Stability of Perovskite Photovoltaics

Progress towards highly stable and lead-free perovskite solar cells

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