Journal article
Dopant-free planar n-i-p perovskite solar cells with steady-state efficiencies exceeding 18%
- Abstract:
- In this Letter, we demonstrate a planar n–i–p perovskite solar cell design with a steady-state efficiency of up to 18.8% in the absence of any electronic dopants. In the device stack, solution-processed SnO2 is used as an electron-accepting n-type layer. The absorber layer is a perovskite with both mixed organic A-site cations and mixed halides (FA0.83MA0.17Pb(I0.83Br0.17)3). The hole-transporting p-type layer is a double-layer structure of polymer-wrapped single-walled carbon nanotubes and undoped spiro-OMeTAD. We show that this approach can deliver steady-state efficiencies as high as and even higher than those of traditionally doped spiro-OMeTAD, providing a pathway for dopant-free perovskite solar cells crucial for long-term stability.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Accepted manuscript, pdf, 437.8KB, Terms of use)
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- Publisher copy:
- 10.1021/acsenergylett.7b00028
Authors
- Publisher:
- American Chemical Society
- Journal:
- ACS Energy Letters More from this journal
- Volume:
- 2
- Issue:
- 3
- Pages:
- 622–628
- Publication date:
- 2017-02-07
- Acceptance date:
- 2017-02-07
- DOI:
- ISSN:
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2380-8195
- Pubs id:
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pubs:677322
- UUID:
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uuid:ebd60a3d-d8a7-4a23-9864-1bf70d54193f
- Local pid:
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pubs:677322
- Source identifiers:
-
677322
- Deposit date:
-
2017-02-07
Terms of use
- Copyright holder:
- American Chemical Society
- Copyright date:
- 2017
- Notes:
- Copyright © 2017 American Chemical Society. This is the accepted manuscript version of the article. The final version is available online from the American Chemical Society at: https://doi.org/10.1021/acsenergylett.7b00028
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