Zero-dimensional (CH3NH3)3Bi2I9 perovskite for optoelectronic applications

Öz, Senol; Hebig, Jan-Christoph; Jung, Eunhwan; Singh, Trilok; Lepcha, Ashish; Olthof, Selina; Flohre, Jan; Gao, Yajun; German, Raphael; Loosdrecht, P.H.M. van; Meerholz, Klaus; Kirchartz, Thomas; Mathur, Sanjay

doi:10.1016/j.solmat.2016.01.035

Cited by 192 publications

(124 citation statements)

References 31 publications

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“…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]. However, the exciton binding energy of more than 300 meV [177], which is in good agreement with time-dependent DFT calculations (400 meV) [182], is much larger than in lead-based analogues (ca. 40 meV [185]) and thus limits the photovoltaic performance up to now.…”

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

confidence: 64%

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 Csupporting

confidence: 64%

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

2017

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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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“…5 3 Bi 2 I 9 films processed by a one-step spin casting method had poor morphology. 76 Difficulty in achieving compact (CH 3 NH 3 ) 3 Bi 2 I 9 films has been attributed to the fast crystallization and the poor solubility of BiI 3 in common organic solvents. 77 Hoye et al proposed two-step fabrication processes to improve the quality of the films.…”

Section: B Thin Filmsmentioning

confidence: 99%

“…However, commonly used organic hole transport layers have non-ideal HOMO levels (5.2 to 5.3 eV). 76 Furthermore, common additives, such as 4-tert-butylpyridine, can dissolve the absorber. 89 Organic materials are also prone to degradation (potentially limiting device lifetime), are expensive, 90,91 and have been found to be the source of failure in fracture toughness testing.…”

Section: Contacts and Device Performance For Bismuth-based Photovmentioning

confidence: 99%

Research Update: Bismuth-based perovskite-inspired photovoltaic materials

et al. 2018

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Bismuth-based compounds have recently gained interest as solar absorbers with the potential to have low toxicity, be efficient in devices, and be processable using facile methods. We review recent theoretical and experimental investigations into bismuth-based compounds, which shape our understanding of their photovoltaic potential, with particular focus on their defect-tolerance. We also review the processing methods that have been used to control the structural and optoelectronic properties of single crystals and thin films. Additionally, we discuss the key factors limiting their device performance, as well as the future steps needed to ultimately realize these new materials for commercial applications.

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Zero-dimensional (CH3NH3)3Bi2I9 perovskite for optoelectronic applications

Cited by 192 publications

References 31 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 towards highly stable and lead-free perovskite solar cells

Research Update: Bismuth-based perovskite-inspired photovoltaic materials

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