The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.
Understanding the Doping Effect on NiO: Toward High‐Performance Inverted Perovskite Solar Cells
Abstract
High‐quality hole transport layers are prepared by spin‐coating copper doped nickel oxide (Cu:NiO) nanoparticle inks at room temperature without further processing. In agreement with theoretical calculations predicting that Cu doping results in acceptor energy levels closer to the valence band maximum compared to gap states of nickel vacancies in undoped NiO, an increase in the conductivity in Cu:NiO films compared to NiO is observed. Cu in Cu:NiO can be found in both Cu+ and Cu 2+ states, and the substitution of Ni 2+ with Cu+ contributes to both increased carrier concentration and carrier mobility. In addition, the films exhibit increased work function, which together with the conductivity increase, enables improved charge transfer and extraction. Furthermore, recombination losses due to lower monomolecular Shockley‐Read‐Hall recombination are reduced. These factors result in an improvement of all photovoltaic performance parameters and consequently an increased efficiency of the inverted planar perovskite solar cells. A power conversion efficiency (PCE) exceeding 20% could be achieved for small‐area devices, while PCE values of 17.41 and 18.07% are obtained for flexible devices and large area (1 cm 2) devices on rigid substrates, respectively.
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Cites
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
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Iodide management in formamidinium-lead-halide–based perovskite layers for efficient solar cells
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Self-citationEfficient and stable large-area perovskite solar cells with inorganic charge extraction layers
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Self-citationImproved air stability of perovskite solar cells via solution-processed metal oxide transport layers
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Cited by
Chen, W., Zhou, Y., Chen, G., Wu, Y., Tu, B., Liu, F., Huang, L., Ng, A. M. C., Djurišić, A. B., & He, Z. (2019) · Advanced Energy Materials · doi:10.1002/aenm.201803872 · Cited by 348
Self-citationFlexible and Wearable Optoelectronic Devices Based on Perovskites
Zhao, R., Gu, Z., Li, P., Zhang, Y., & Song, Y. (2022) · Advanced Materials Technologies · doi:10.1002/admt.202101124 · Cited by 83
Li, S., Li, Y., Liu, K., Chen, M., Peng, W., Yang, Y., & Li, X. (2021) · Applied Surface Science · doi:10.1016/j.apsusc.2021.150470 · Cited by 11
Metadata
- Authors
- Chen, W., Wu, Y., Fan, J., Djurišić, A. B., Liu, F., Tam, H. W., Ng, A., Surya, C., Chan, W. K., Wang, D., & He, Z.
- Venue
- Advanced Energy Materials
- Publisher
- Wiley
- Published
- 2018-03-25
- Volume
- 8
- Issue
- 19
- ISSN
- 1614-6832 (ISSN-L)
- 1614-6840
- OpenAlex
- W2790131787
- Cited by
- 435
- References
- 50
- FWCI
- 17.97
- Type
- journal article
- Language
- en
- Open access
- closed
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