The DOI matches its Crossref record; 57 of the 57 references it cites were found in a registry or an index.
Two-Dimensional Halide Perovskites Incorporating Straight Chain Symmetric Diammonium Ions, (NH3CmH2 mNH3)(CH3NH3)n−1PbnI3 n+1 (m = 4–9; n = 1–4)
Open accessAbstract
Low-dimensional halide perovskites have recently attracted intense interest as alternatives to the three-dimensional (3D) perovskites because of their greater tunability and higher environmental stability. Herein, we present the new homologous 2D series (NH 3 C m H 2 m NH 3 )(CH 3 NH 3 ) n −1 Pb n I 3 n +1 ( m = 4–9; n = 1–4), where m represents the carbon-chain number and n equals layer-thickness number. Multilayer ( n > 1) 2D perovskites incorporating diammonium cations were successfully synthesized by the solid-state grinding method for m = 4 and 6 and by the solution method for m = 7–9. Structural characterization by single-crystal X-ray diffraction for the m = 8 and m = 9 series ( n = 1–4) reveals that these compounds adopt the Cc space group for even n members and Pc for odd n members. The optical bandgaps are 2.15 eV for two-layer ( n = 2), 2.01 eV for three-layer ( n = 3), and 1.90 eV for four-layer ( n = 4). The materials exhibit excellent solution processability, and casting thin-films of the n = 3 members was successfully accomplished. The films show a clear tendency for the higher- m members to have preferred orientation on the glass substrate, with m = 8 exhibiting almost perfect vertical layer orientation and m = 9 displaying both vertical and parallel layer orientation, as confirmed by grazing-incidence wide-angle X-ray scattering (GIWAXS) measurements. The vertical layer orientation for the (NH 3 C 8 H 16 NH 3 )(CH 3 NH 3 ) 2 Pb 3 I 10 member results in the best thermal, light, and air stability within this series, thus showing excellent potential for solar cell applications.
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Cites
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
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Cited by
Li, X., Hoffman, J. M., & Kanatzidis, M. G. (2021) · Chemical Reviews · doi:10.1021/acs.chemrev.0c01006 · Cited by 1,085
Self-citationAdvanced Organic–Inorganic Hybrid Materials for Optoelectronic Applications
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Linearly programmable two-dimensional halide perovskite memristor arrays for neuromorphic computing
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Metadata
- Authors
- Li, X., Hoffman, J., Ke, W., Chen, M., Tsai, H., Nie, W., Mohite, A. D., Kepenekian, M., Katan, C., Even, J., Wasielewski, M. R., Stoumpos, C. C., & Kanatzidis, M. G.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-08-31
- Volume
- 140
- Issue
- 38
- Pages
- 12226-12238
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2889430116
- Cited by
- 253
- References
- 57
- FWCI
- 11.10
- Type
- journal article
- Language
- en
- Open access
- green
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- Li, X., Hoffman, J., Ke, W., Chen, M., Tsai, H., Nie, W., Mohite, A. D., Kepenekian, M., Katan, C., Even, J., Wasielewski, M. R., Stoumpos, C. C., & Kanatzidis, M. G. (2018). Two-Dimensional Halide Perovskites Incorporating Straight Chain Symmetric Diammonium Ions, (NH3CmH2 mNH3)(CH3NH3)n−1PbnI3 n+1 (m = 4–9; n = 1–4). Journal of the American Chemical Society. https://doi.org/10.1021/jacs.8b07712
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