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Enhanced charge mobility in a molecular hole transporter via addition of redox inactive ionic dopant: Implication to dye-sensitized solar cells
Abstract
Upon the addition of lithium salts to the hole-transporter matrix, 2,2′,7,7′-tetrakis(N,N-di-p-methoxypheny-amine)-9,9′-spirobifluorene (spiro-MeOTAD), the authors observe a 100-fold increase in conductivity through spiro-MeOTAD within a TiO2 mesoporous network. The authors demonstrate this to be a bulk effect and not due to improved injection at the electrodes. By testing “hole-only” diodes of pure spiro-MeOTAD and those doped with lithium salts, the authors calculate that the hole mobility increases from 1.6×10−4to1.6×10−3cm2∕Vs. The authors discuss the possible mechanisms for this significant enhancement in charge mobility and its implication to the dye-sensitized solar cell operation.
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Citations
Cited by
Park, N.-G. (2013) · The Journal of Physical Chemistry Letters · doi:10.1021/jz400892a · Cited by 1,382
Organolead Halide Perovskite: New Horizons in Solar Cell Research
Kim, H.-S., Im, S. H., & Park, N.-G. (2014) · The Journal of Physical Chemistry C · doi:10.1021/jp409025w · Cited by 722
Recent Progress on the Long‐Term Stability of Perovskite Solar Cells
Fu, Q., Tang, X., Huang, B., Hu, T., Tan, L., Chen, L., & Chen, Y. (2018) · Advanced Science · doi:10.1002/advs.201700387 · Cited by 454
Progress on Electrolytes Development in Dye-Sensitized Solar Cells
Iftikhar, H., Sonai, G. G., Hashmi, S. G., Nogueira, A. F., & Lund, P. D. (2019) · Materials · doi:10.3390/ma12121998 · Cited by 253
Deterioration mechanism of perovskite solar cells by operando observation of spin states
Watanabe, T., Yamanari, T., & Marumoto, K. (2020) · Communications Materials · doi:10.1038/s43246-020-00099-7 · Cited by 36
Metadata
- Authors
- Snaith, H. J., & Grätzel, M.
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2006-12-25
- Volume
- 89
- Issue
- 26
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W2007967261
- Cited by
- 482
- References
- 0
- FWCI
- 5.37
- Type
- journal article
- Language
- en
- Open access
- closed
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- Snaith, H. J., & Grätzel, M. (2006). Enhanced charge mobility in a molecular hole transporter via addition of redox inactive ionic dopant: Implication to dye-sensitized solar cells. Applied Physics Letters. https://doi.org/10.1063/1.2424552
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