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Hole-transport material variation in fully vacuum deposited perovskite solar cells
Open accessAbstract
This work addresses the effect of energy level alignment between the hole-transporting material and the active layer in vacuum deposited, planar-heterojunction CH3NH3PbIx−3Clx perovskite solar cells. Through a series of hole-transport materials, with conductivity values set using controlled p-doping of the layer, we correlate their ionization potentials with the open-circuit voltage of the device. With ionization potentials beyond 5.3 eV, a substantial decrease in both current density and voltage is observed, which highlights the delicate energetic balance between driving force for hole-extraction and maximizing the photovoltage. In contrast, when an optimal ionization potential match is found, the open-circuit voltage can be maximized, leading to power conversion efficiencies of up to 10.9%. These values are obtained with hole-transport materials that differ from the commonly used Spiro-MeO-TAD and correspond to a 40% performance increase versus this reference.
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Cited by
Jeon, N. J., Na, H., Jung, E. H., Yang, T.-Y., Lee, Y. G., Kim, G., Shin, H.-W., Il Seok, S., Lee, J., & Seo, J. (2018) · Nature Energy · doi:10.1038/s41560-018-0200-6 · Cited by 2,089
Kim, J. H., Liang, P., Williams, S. T., Cho, N., Chueh, C., Glaz, M. S., Ginger, D. S., & Jen, A. K. ‐. (2015) · Advanced Materials · doi:10.1002/adma.201404189 · Cited by 833
Tress, W. (2017) · Advanced Energy Materials · doi:10.1002/aenm.201602358 · Cited by 601
Halide Perovskites: Is It All about the Interfaces?
Schulz, P., Cahen, D., & Kahn, A. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00558 · Cited by 558
Triarylamine: Versatile Platform for Organic, Dye-Sensitized, and Perovskite Solar Cells
Wang, J., Liu, K., Ma, L., & Zhan, X. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00432 · Cited by 536
Metadata
- Authors
- Polander, L. E., Pahner, P., Schwarze, M., Saalfrank, M., Koerner, C., & Leo, K.
- Venue
- APL Materials
- Publisher
- AIP Publishing
- Published
- 2014-07-14
- Volume
- 2
- Issue
- 8
- ISSN
- 2166-532X (ISSN-L)
- OpenAlex
- W2002282849
- Cited by
- 194
- References
- 0
- FWCI
- 12.03
- Type
- journal article
- Language
- en
- Open access
- gold
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- Polander, L. E., Pahner, P., Schwarze, M., Saalfrank, M., Koerner, C., & Leo, K. (2014). Hole-transport material variation in fully vacuum deposited perovskite solar cells. APL Materials. https://doi.org/10.1063/1.4889843
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