The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.
Controllable Self-Induced Passivation of Hybrid Lead Iodide Perovskites toward High Performance Solar Cells
Abstract
To improve the performance of the polycrystalline thin film devices, it requires a delicate control of its grain structures. As one of the most promising candidates among current thin film photovoltaic techniques, the organic/inorganic hybrid perovskites generally inherit polycrystalline nature and exhibit compositional/structural dependence in regard to their optoelectronic properties. Here, we demonstrate a controllable passivation technique for perovskite films, which enables their compositional change, and allows substantial enhancement in corresponding device performance. By releasing the organic species during annealing, PbI2 phase is presented in perovskite grain boundaries and at the relevant interfaces. The consequent passivation effects and underlying mechanisms are investigated with complementary characterizations, including scanning electron microscopy (SEM), X-ray diffraction (XRD), time-resolved photoluminescence decay (TRPL), scanning Kelvin probe microscopy (SKPM), and ultraviolet photoemission spectroscopy (UPS). This controllable self-induced passivation technique represents an important step to understand the polycrystalline nature of hybrid perovskite thin films and contributes to the development of perovskite solar cells judiciously.
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Metadata
- Authors
- Chen, Q., Zhou, H., Song, T.-B., Luo, S., Hong, Z., Duan, H.-S., Dou, L., Liu, Y., & Yang, Y.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-06-30
- Volume
- 14
- Issue
- 7
- Pages
- 4158-4163
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2087642091
- Cited by
- 1,543
- References
- 30
- FWCI
- 77.29
- Type
- journal article
- Language
- en
- Open access
- closed
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