The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.
General Working Principles of CH3NH3PbX3 Perovskite Solar Cells
Abstract
Organometal halide perovskite-based solar cells have recently realized large conversion efficiency over 15% showing great promise for a new large scale cost-competitive photovoltaic technology. Using impedance spectroscopy measurements we are able to separate the physical parameters of carrier transport and recombination in working devices of the two principal morphologies and compositions of perovskite solar cells, viz. compact thin films of CH3NH3PbI(3-x)Clx and CH3NH3PbI3 infiltrated on nanostructured TiO2. The results show nearly identical spectral characteristics indicating a unique photovoltaic operating mechanism that provides long diffusion lengths (1 μm). Carrier conductivity in both devices is closely matched, so that the most significant differences in performance are attributed to recombination rates. These results highlight the central role of the CH3NH3PbX3 semiconductor absorber in carrier collection and provide a new tool for improved optimization of perovskite solar cells. We report for the first time a measurement of the diffusion length in a nanostructured perovskite solar cell.
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Cites
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Metadata
- Authors
- Gonzalez-Pedro, V., Juarez-Perez, E. J., Arsyad, W.-S., Barea, E. M., Fabregat-Santiago, F., Mora-Sero, I., & Bisquert, J.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-01-10
- Volume
- 14
- Issue
- 2
- Pages
- 888-893
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W2314123433
- Cited by
- 872
- References
- 25
- FWCI
- 71.28
- Type
- journal article
- Language
- en
- Open access
- closed
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