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Cited by 422

The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.

Highly Distorted Chiral Two-Dimensional Tin Iodide Perovskites for Spin Polarized Charge Transport

Open access
Lu, Haipeng, Xiao, Chuanxiao, Song, Ruyi, Li, Tianyang, Maughan, Annalise E., Levin, Andrew, Brunecky, Roman, Berry, Joseph J., Mitzi, David B., Blum, Volker, Beard, Matthew C.·2020·Journal of the American Chemical Society
DOI 10.1021/jacs.0c03899
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Abstract

Incorporating chiral organic molecules into organic/inorganic hybrid 2D metal-halide perovskites results in a novel family of chiral hybrid semiconductors with unique spin-dependent properties. The embedded chiral organic moieties induce a chiroptical response from the inorganic metal–halide sublattice. However, the structural interplay between the chiral organic molecules and the inorganic sublattice, as well as their synergic effect on the resulting electronic band structure need to be explored in a broader material scope. Here we present three new layered tin iodide perovskites templated by chiral ( R / S -)methylbenzylammonium ( R/S -MBA), i.e., ( R -/ S -MBA) 2 SnI 4, and their racemic phase ( rac -MBA) 2 SnI 4 . These MBA 2 SnI 4 compounds exhibit the largest level of octahedral bond distortion compared to any other reported layered tin iodide perovskite. The incorporation of chiral MBA cations leads to circularly polarized absorption from the inorganic Sn–I sublattice, displaying chiroptical activity in the 300–500 nm wavelength range. The bandgap and chiroptical activity are modulated by alloying Sn with Pb, in the series of (MBA) 2 Pb 1– x Sn x I 4 . Finally, we show that vertical charge transport through oriented ( R -/ S -MBA) 2 SnI 4 thin films is highly spin-dependent, arising from a chiral-induced spin selectivity (CISS) effect. We demonstrate a spin-polarization in the current–voltage characteristics as high as 94%. Our work shows the tremendous potential of these chiral hybrid semiconductors for controlling both spin and charge degrees of freedom.

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Metadata

Authors
Lu, H., Xiao, C., Song, R., Li, T., Maughan, A. E., Levin, A., Brunecky, R., Berry, J. J., Mitzi, D. B., Blum, V., & Beard, M. C.
Venue
Journal of the American Chemical Society
Publisher
American Chemical Society (ACS)
Published
2020-06-30
Volume
142
Issue
30
Pages
13030-13040
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
DOI
10.1021/jacs.0c03899
OpenAlex
W3039038603
Cited by
422
References
55
FWCI
16.12
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: Highly Distorted Chiral Two-Dimensional Tin Iodide Perovskites for Spin Polarized Charge Transport. https://app.cochat.ai/papers/10.1021/jacs.0c03899
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Lu, H., Xiao, C., Song, R., Li, T., Maughan, A. E., Levin, A., Brunecky, R., Berry, J. J., Mitzi, D. B., Blum, V., & Beard, M. C. (2020). Highly Distorted Chiral Two-Dimensional Tin Iodide Perovskites for Spin Polarized Charge Transport. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.0c03899

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