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Non-wetting surface-driven high-aspect-ratio crystalline grain growth for efficient hybrid perovskite solar cells
Open accessAbstract
Large-aspect-ratio grains are needed in polycrystalline thin-film solar cells for reduced charge recombination at grain boundaries; however, the grain size in organolead trihalide perovskite (OTP) films is generally limited by the film thickness. Here we report the growth of OTP grains with high average aspect ratio of 2.3–7.9 on a wide range of non-wetting hole transport layers (HTLs), which increase nucleus spacing by suppressing heterogeneous nucleation and facilitate grain boundary migration in grain growth by imposing less drag force. The reduced grain boundary area and improved crystallinity dramatically reduce the charge recombination in OTP thin films to the level in OTP single crystals. Combining the high work function of several HTLs, a high stabilized device efficiency of 18.3% in low-temperature-processed planar-heterojunction OTP devices under 1 sun illumination is achieved. This simple method in enhancing OTP morphology paves the way for its application in other optoelectronic devices for enhanced performance.
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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
Cited by
Brenner, T. M., Egger, D. A., Kronik, L., Hodes, G., & Cahen, D. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2015.7 · Cited by 1,557
Ahmadi, M., Wu, T., & Hu, B. (2017) · Advanced Materials · doi:10.1002/adma.201605242 · Cited by 820
Recent Advances in the Inverted Planar Structure of Perovskite Solar Cells
Meng, L., You, J., Guo, T.-F., & Yang, Y. (2016) · Accounts of Chemical Research · doi:10.1021/acs.accounts.5b00404 · Cited by 659
Ke, W., Xiao, C., Wang, C., Saparov, B., Duan, H., Zhao, D., Xiao, Z., Schulz, P., Harvey, S. P., Liao, W., et al. (2016) · Advanced Materials · doi:10.1002/adma.201600594 · Cited by 579
Self-citationApplications of Phosphorene and Black Phosphorus in Energy Conversion and Storage Devices
Pang, J., Bachmatiuk, A., Yin, Y., Trzebicka, B., Zhao, L., Fu, L., Mendes, R. G., Gemming, T., Liu, Z., & Rummeli, M. H. (2018) · Advanced Energy Materials · doi:10.1002/aenm.201702093 · Cited by 518
Metadata
- Authors
- Bi, C., Wang, Q., Shao, Y., Yuan, Y., Xiao, Z., & Huang, J.
- Venue
- Nature Communications
- Published
- 2015-07-20
- Volume
- 6
- Issue
- 1
- Pages
- 7747-7747
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2259658805
- Cited by
- 1,660
- References
- 1
- FWCI
- 77.78
- Type
- journal article
- Language
- en
- Open access
- gold
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- Bi, C., Wang, Q., Shao, Y., Yuan, Y., Xiao, Z., & Huang, J. (2015). Non-wetting surface-driven high-aspect-ratio crystalline grain growth for efficient hybrid perovskite solar cells. Nature Communications. https://doi.org/10.1038/ncomms8747
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