The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Spatially Non-uniform Trap State Densities in Solution-Processed Hybrid Perovskite Thin Films
Abstract
The facile solution-processability of methylammonium lead halide (CH3NH3PbI3) perovskites has catalyzed the development of inexpensive, hybrid perovskite-based optoelectronics. It is apparent, though, that solution-processed CH3NH3PbI3 films possess local emission heterogeneities, stemming from electronic disorder in the material. Herein we investigate the spatially resolved emission properties of CH3NH3PbI3 thin films through detailed emission intensity versus excitation intensity measurements. These studies enable us to establish the existence of nonuniform trap density variations wherein regions of CH3NH3PbI3 films exhibit effective free carrier recombination while others exhibit emission dynamics strongly influenced by the presence of trap states. Such trap density variations lead to spatially varying emission quantum yields and correspondingly impact the performance of both methylammonium lead halide perovskite solar cells and other hybrid perovskite-based devices. Of additional note is that the observed spatial extent of the optical disorder extends over length scales greater than that of underlying crystalline domains, suggesting the existence of other factors, beyond grain boundary-related nonradiative recombination channels, which lead to significant intrafilm optical heterogeneities.
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Cites
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
Jeon, N. J., Noh, J. H., Kim, Y. C., Yang, W. S., Ryu, S., & Seok, S. I. (2014) · Nature Materials · doi:10.1038/nmat4014 · Cited by 6,723
Impact of microstructure on local carrier lifetime in perovskite solar cells
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Deschler, F., Price, M., Pathak, S., Klintberg, L. E., Jarausch, D.-D., Higler, R., Hüttner, S., Leijtens, T., Stranks, S. D., Snaith, H. J., et al. (2014) · The Journal of Physical Chemistry Letters · doi:10.1021/jz5005285 · Cited by 1,753
Lead iodide perovskite light-emitting field-effect transistor
Chin, X. Y., Cortecchia, D., Yin, J., Bruno, A., & Soci, C. (2015) · Nature Communications · doi:10.1038/ncomms8383 · Cited by 767
Correlated electron–hole plasma in organometal perovskites
Saba, M., Cadelano, M., Marongiu, D., Chen, F., Sarritzu, V., Sestu, N., Figus, C., Aresti, M., Piras, R., Geddo Lehmann, A., et al. (2014) · Nature Communications · doi:10.1038/ncomms6049 · Cited by 603
Cited by
Jodlowski, A. D., Roldán-Carmona, C., Grancini, G., Salado, M., Ralaiarisoa, M., Ahmad, S., Koch, N., Camacho, L., de Miguel, G., & Nazeeruddin, M. K. (2017) · Nature Energy · doi:10.1038/s41560-017-0054-3 · Cited by 533
Rajagopal, A., Yao, K., & Jen, A. K. ‐. (2018) · Advanced Materials · doi:10.1002/adma.201800455 · Cited by 429
Ye, S., Rao, H., Zhao, Z., Zhang, L., Bao, H., Sun, W., Li, Y., Gu, F., Wang, J., Liu, Z., et al. (2017) · Journal of the American Chemical Society · doi:10.1021/jacs.7b01439 · Cited by 401
Nonradiative Losses in Metal Halide Perovskites
Stranks, S. D. (2017) · ACS Energy Letters · doi:10.1021/acsenergylett.7b00239 · Cited by 336
Local Crystal Misorientation Influences Non-radiative Recombination in Halide Perovskites
Jariwala, S., Sun, H., Adhyaksa, G. W. P., Lof, A., Muscarella, L. A., Ehrler, B., Garnett, E. C., & Ginger, D. S. (2019) · Joule · doi:10.1016/j.joule.2019.09.001 · Cited by 273
Metadata
- Authors
- Draguta, S., Thakur, S., Morozov, Y. V., Wang, Y., Manser, J. S., Kamat, P. V., & Kuno, M.
- Venue
- The Journal of Physical Chemistry Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-02-05
- Volume
- 7
- Issue
- 4
- Pages
- 715-721
- ISSN
- 1948-7185 (ISSN-L)
- OpenAlex
- W2259338724
- Cited by
- 190
- References
- 5
- FWCI
- 13.87
- Type
- journal article
- Language
- en
- Open access
- closed
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- Draguta, S., Thakur, S., Morozov, Y. V., Wang, Y., Manser, J. S., Kamat, P. V., & Kuno, M. (2016). Spatially Non-uniform Trap State Densities in Solution-Processed Hybrid Perovskite Thin Films. The Journal of Physical Chemistry Letters. https://doi.org/10.1021/acs.jpclett.5b02888
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