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Reentrant Structural and Optical Properties and Large Positive Thermal Expansion in Perovskite Formamidinium Lead Iodide
Open accessAbstract
The structure of the hybrid perovskite HC(NH 2)2 PbI 3 (formamidinium lead iodide) reflects competing interactions associated with molecular motion, hydrogen bonding tendencies, thermally activated soft octahedral rotations, and the propensity for the Pb 2+ lone pair to express its stereochemistry. High‐resolution synchrotron X‐ray powder diffraction reveals a continuous transition from the cubic α‐phase (Pm m, #221) to a tetragonal β‐phase (P4/mbm, #127) at around 285 K, followed by a first‐order transition to a tetragonal γ‐phase (retaining P4/mbm, #127) at 140 K. An unusual reentrant pseudosymmetry in the β‐to‐γ phase transition is seen that is also reflected in the photoluminescence. Around room temperature, the coefficient of volumetric thermal expansion is among the largest for any extended crystalline solid.
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Cited by
Prasanna, R., Gold-Parker, A., Leijtens, T., Conings, B., Babayigit, A., Boyen, H.-G., Toney, M. F., & McGehee, M. D. (2017) · Journal of the American Chemical Society · doi:10.1021/jacs.7b04981 · Cited by 893
Synthetic Approaches for Halide Perovskite Thin Films
Dunlap-Shohl, W. A., Zhou, Y., Padture, N. P., & Mitzi, D. B. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00318 · Cited by 631
Acceleration of radiative recombination for efficient perovskite LEDs
Li, M., Yang, Y., Kuang, Z., Hao, C., Wang, S., Lu, F., Liu, Z., Liu, J., Zeng, L., Cai, Y., et al. (2024) · Nature · doi:10.1038/s41586-024-07460-7 · Cited by 404
Hazarika, A., Zhao, Q., Gaulding, E. A., Christians, J. A., Dou, B., Marshall, A. R., Moot, T., Berry, J. J., Johnson, J. C., & Luther, J. M. (2018) · ACS Nano · doi:10.1021/acsnano.8b05555 · Cited by 264
Impact of the Organic Cation on the Optoelectronic Properties of Formamidinium Lead Triiodide
Davies, C. L., Borchert, J., Xia, C. Q., Milot, R. L., Kraus, H., Johnston, M. B., & Herz, L. M. (2018) · The Journal of Physical Chemistry Letters · doi:10.1021/acs.jpclett.8b01628 · Cited by 68
Metadata
- Authors
- Fabini, D. H., Stoumpos, C. C., Laurita, G., Kaltzoglou, A., Kontos, A. G., Falaras, P., Kanatzidis, M. G., & Seshadri, R.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2016-11-10
- Volume
- 55
- Issue
- 49
- Pages
- 15392-15396
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2554532276
- Cited by
- 188
- References
- 0
- FWCI
- 7.01
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Fabini, D. H., Stoumpos, C. C., Laurita, G., Kaltzoglou, A., Kontos, A. G., Falaras, P., Kanatzidis, M. G., & Seshadri, R. (2016). Reentrant Structural and Optical Properties and Large Positive Thermal Expansion in Perovskite Formamidinium Lead Iodide. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201609538
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