The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.
The First 2D Homochiral Lead Iodide Perovskite Ferroelectrics: [R‐ and S‐1‐(4‐Chlorophenyl)ethylammonium]2PbI4
Abstract
2D organic–inorganic lead iodide perovskites have recently received tremendous attention as promising light absorbers for solar cells, due to their excellent optoelectronic properties, structural tunability, and environmental stability. However, although great efforts have been made, no 2D lead iodide perovskites have been discovered as ferroelectrics, in which the ferroelectricity may improve the photovoltaic performance. Here, by incorporating homochiral cations, 2D lead iodide perovskite ferroelectrics [R‐1‐(4‐chlorophenyl)ethylammonium]2 PbI 4 and [S‐1‐(4‐chlorophenyl)ethylammonium]2 PbI 4 are successfully obtained. The vibrational circular dichroism spectra and crystal structural analysis reveal their homochirality. They both crystalize in a polar space group P 1 at room temperature, and undergo a 422 F 1 type ferroelectric phase transition with transition temperature as high as 483 and 473.2 K, respectively, showing a multiaxial ferroelectric nature. They also possess semiconductor characteristics with a direct bandgap of 2.34 eV. Nevertheless, their racemic analogue adopts a centrosymmetric space group P 2 1/c at room temperature, exhibiting no high‐temperature phase transition. The homochirality in 2D lead iodide perovskites facilitates crystallization in polar space groups. This finding indicates an effective way to design high‐performance 2D lead iodide perovskite ferroelectrics with great application prospects.
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Cites
Organometal Halide Perovskites as Visible-Light Sensitizers for Photovoltaic Cells
Kojima, A., Teshima, K., Shirai, Y., & Miyasaka, T. (2009) · Journal of the American Chemical Society · doi:10.1021/ja809598r · Cited by 23,090
Sequential deposition as a route to high-performance perovskite-sensitized solar cells
Burschka, J., Pellet, N., Moon, S.-J., Humphry-Baker, R., Gao, P., Nazeeruddin, M. K., & Grätzel, M. (2013) · Nature · doi:10.1038/nature12340 · Cited by 9,547
High-efficiency two-dimensional Ruddlesden–Popper perovskite solar cells
Tsai, H., Nie, W., Blancon, J.-C., Stoumpos, C. C., Asadpour, R., Harutyunyan, B., Neukirch, A. J., Verduzco, R., Crochet, J. J., Tretiak, S., et al. (2016) · Nature · doi:10.1038/nature18306 · Cited by 3,384
Organic–Inorganic Perovskites: Structural Versatility for Functional Materials Design
Saparov, B., & Mitzi, D. B. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00715 · Cited by 2,907
Nonlinear Dielectric Polarization in Optical Media
Kleinman, D. A. (1962) · Physical Review · doi:10.1103/physrev.126.1977 · Cited by 2,469
Atomistic Origins of High-Performance in Hybrid Halide Perovskite Solar Cells
Frost, J. M., Butler, K. T., Brivio, F., Hendon, C. H., van Schilfgaarde, M., & Walsh, A. (2014) · Nano Letters · doi:10.1021/nl500390f · Cited by 2,425
Unique Properties of Halide Perovskites as Possible Origins of the Superior Solar Cell Performance
Yin, W., Shi, T., & Yan, Y. (2014) · Advanced Materials · doi:10.1002/adma.201306281 · Cited by 2,334
Switchable Ferroelectric Diode and Photovoltaic Effect in BiFeO 3
Choi, T., Lee, S., Choi, Y. J., Kiryukhin, V., & Cheong, S.-W. (2009) · Science · doi:10.1126/science.1168636 · Cited by 1,984
Above-bandgap voltages from ferroelectric photovoltaic devices
Yang, S. Y., Seidel, J., Byrnes, S. J., Shafer, P., Yang, C.-H., Rossell, M. D., Yu, P., Chu, Y.-H., Scott, J. F., Ager, J. W., et al. (2010) · Nature Nanotechnology · doi:10.1038/nnano.2009.451 · Cited by 1,812
Self-citationPerovskite Materials for Light‐Emitting Diodes and Lasers
Veldhuis, S. A., Boix, P. P., Yantara, N., Li, M., Sum, T. C., Mathews, N., & Mhaisalkar, S. G. (2016) · Advanced Materials · doi:10.1002/adma.201600669 · Cited by 1,465
Cited by
Wang, L., Xue, Y., Cui, M., Huang, Y., Xu, H., Qin, C., Yang, J., Dai, H., & Yuan, M. (2020) · Angewandte Chemie International Edition · doi:10.1002/anie.201915912 · Cited by 298
Zhao, Y., Yin, X., Li, P., Ren, Z., Gu, Z., Zhang, Y., & Song, Y. (2023) · Nano-Micro Letters · doi:10.1007/s40820-023-01161-y · Cited by 117
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Metadata
- Authors
- Yang, C., Chen, W., Ding, Y., Wang, J., Rao, Y., Liao, W., Tang, Y., Li, P., Wang, Z., & Xiong, R.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2019-03-06
- Volume
- 31
- Issue
- 16
- Pages
- e1808088-e1808088
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2921257713
- Cited by
- 389
- References
- 34
- FWCI
- 18.77
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yang, C., Chen, W., Ding, Y., Wang, J., Rao, Y., Liao, W., Tang, Y., Li, P., Wang, Z., & Xiong, R. (2019). The First 2D Homochiral Lead Iodide Perovskite Ferroelectrics: [R‐ and S‐1‐(4‐Chlorophenyl)ethylammonium]2PbI4. Advanced Materials. https://doi.org/10.1002/adma.201808088
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