Insight into the reaction mechanism of water, oxygen and nitrogen molecules on a tin iodine perovskite surface

Xie, Gongnan; Xu, Ling; Sun, Lin; Xiong, Yan; Wu, Ping; Hu, Bin

doi:10.1039/c8ta11705e

Cited by 47 publications

(51 citation statements)

References 59 publications

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“…Although Sn can successfully replace Pb in the perovskite lattice, the approach has not yielded Sn halide perovskites exhibiting comparable performance with the Pb based analogs to date . This may have stemmed from factors such as; poor film quality, inferior electronic properties and most importantly poor stability emanating from the easy oxidative conversion of Sn from its +2 to +4 state . The fabrication of Sn halide perovskite devices in ambient is almost impossible.…”

Section: Merits and Challenges Of Sn Halide Perovskitesmentioning

confidence: 99%

Tin Halide Perovskites: Progress and Challenges

Yang

Igbari

Lou

et al. 2019

Advanced Energy Materials

161

121

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The chemical composition engineering of lead halide perovskites via a partial or complete replacement of toxic Pb with tin has been widely reported as a feasible process due to the suitable ionic radius of Sn and its possibility of existing in the +2 state. Interestingly, a complete replacement narrows the bandgap while a partial replacement gives an anomalous phenomenon involving a further narrowing of bandgap relative to the pure Pb and Sn halide perovskite compounds. Unfortunately, the merits of this anomalous behavior have not been properly harnessed. Although promising progress has been made to advance the properties and performance of Sn‐based perovskite systems, their photovoltaic (PV) parameters are still significantly inferior to those of the Pb‐based analogs. This review summarizes the current progress and challenges in the preparation, morphological and photophysical properties of Sn‐based halide perovskites, and how these affect their PV performance. Although it can be argued that the Pb halide perovskite systems may remain the most sought after technology in the field of thin film perovskite PV, prospective research directions are suggested to advance the properties of Sn halide perovskite materials for improved device performance.

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Section: Merits and Challenges Of Sn Halide Perovskitesmentioning

confidence: 99%

Tin Halide Perovskites: Progress and Challenges

Yang

Igbari

Lou

et al. 2019

Advanced Energy Materials

161

121

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“…Analogous to Pb-PVSKs, such a process has also been found to correlate with SnI bonding. Recently, both the Hu and Nakamura groups theoretically simulated the detailed degradation processes of Sn based PVSKs and confirmed the critical role of surface Sn-I bonding on the degradation process, which would be significantly weakened by H 2 O or O 2 invasion along with the depletion of a CH 3 −NH 3 + cation in the surface region 39,…”

mentioning

confidence: 92%

Advancing Tin Halide Perovskites: Strategies toward the ASnX₃ Paradigm for Efficient and Durable Optoelectronics

et al. 2020

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Various less-toxic substitutes for the Pb 2+ -based perovskites have been proposedwherein Sn 2+ -based metal halide perovskites (namely, Sn-PVSKs) hold the best prospect due to their comparable optoelectronic properties to Pb analogues. Nevertheless, the intrinsic instability and unfavorable crystallization of Sn-PVSKs place restrictions on both the device performance/durability and the fabrication reproducibility/large-scale manufacturing, respectively. Therefore, numerous attempts have been directed at exploring the underlying mechanisms of Sn-PVSKs and acquiring high-quality, ambient-stable thin films. In this review, a retrospect is firstly given on the milestones and general properties of paradigm ABX 3 structured Sn-PVSKs. Then, their electronic structure evolution, photo-physics process and degradation pathways are thoroughly interpreted. The gained understanding triggers various strategies exploited in the categories of synthetic conditions, compositions, phase components as well as device architecture for diverse optoelectronic applications. The final section summarizes key advances in Sn-PVSKs and meanwhile offers the guidance for future improvements that depends critically on these methodologies.

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“…shows the optical absorption coefficients of the MASnI 3 and FASnI 3 calculated using the equation A(u) ¼ 1 À e Àa(u)Dz 47. …”

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confidence: 99%

Theoretical and experimental investigations on the bulk photovoltaic effect in lead-free perovskites MASnI₃ and FASnI₃

Peng

Xie

2020

RSC Adv.

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Insight into the reaction mechanism of water, oxygen and nitrogen molecules on a tin iodine perovskite surface

Abstract: In this article, in order to study the lead-free perovskite CH3NH3SnI3 (MASnI3) reaction mechanism between perovskite surface molecules and gas molecules, we fabricated models for three different gas molecules adsorbing on an MASnI3 surface.

Cited by 47 publications

References 59 publications

Tin Halide Perovskites: Progress and Challenges

Tin Halide Perovskites: Progress and Challenges

Advancing Tin Halide Perovskites: Strategies toward the ASnX₃ Paradigm for Efficient and Durable Optoelectronics

Theoretical and experimental investigations on the bulk photovoltaic effect in lead-free perovskites MASnI₃ and FASnI₃

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Insight into the reaction mechanism of water, oxygen and nitrogen molecules on a tin iodine perovskite surface

Abstract: In this article, in order to study the lead-free perovskite CH3NH3SnI3 (MASnI3) reaction mechanism between perovskite surface molecules and gas molecules, we fabricated models for three different gas molecules adsorbing on an MASnI3 surface.

Cited by 47 publications

References 59 publications

Tin Halide Perovskites: Progress and Challenges

Tin Halide Perovskites: Progress and Challenges

Advancing Tin Halide Perovskites: Strategies toward the ASnX3 Paradigm for Efficient and Durable Optoelectronics

Theoretical and experimental investigations on the bulk photovoltaic effect in lead-free perovskites MASnI3 and FASnI3

Contact Info

Product

Resources

About

Advancing Tin Halide Perovskites: Strategies toward the ASnX₃ Paradigm for Efficient and Durable Optoelectronics

Theoretical and experimental investigations on the bulk photovoltaic effect in lead-free perovskites MASnI₃ and FASnI₃