The DOI matches its Crossref record; 91 of the 91 references it cites were found in a registry or an index.
Intrinsic Instability of Inorganic–Organic Hybrid Halide Perovskite Materials
Abstract
Hybrid lead halide perovskite materials are used in solar cells and show efficiencies greater than 23%. Furthermore, they are applied in light‐emitting diodes, X‐ray detectors, thin‐film transistors, thermoelectrics, and memory devices. Lead trihalide hybrid materials contain methylammonium (MA) or formamidinium (FA) (or a mixture), or long alkylammonium halides, as alternative organic cations. However, the intrinsic stability of hybrid lead halide perovskites is not very high, and they are chemically unstable when exposed to moisture, light, or heat because of their organic contents and low formation energies. Therefore, although improvements in the chemical stability are crucial, changing the material composition is challenging because it is directly related to the desired application requirements. Fortunately, hybrid lead halide perovskites have a very high tolerance toward changes in physical properties arising from doping or addition of different cations and anions, in many cases showing improved properties. Here, the intrinsic instability of hybrid lead halide perovskites is reviewed in relation to the crystal phase and chemical stability. It is suggested that FA should be used for lead halide perovskites for chemical stability instead of MA. Furthermore, additives that stabilize the crystal phase with α‐FAPbI 3 should eschew MA.
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Two-dimensional halide perovskite lateral epitaxial heterostructures
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Metadata
- Authors
- Park, B., & Seok, S. I.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2019-02-17
- Volume
- 31
- Issue
- 20
- Pages
- e1805337-e1805337
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2915850808
- Cited by
- 454
- References
- 91
- FWCI
- 20.62
- Type
- journal article
- Language
- en
- Open access
- closed
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