Journal article
Open-circuit and short-circuit loss management in wide-gap perovskite p-i-n solar cells
- Abstract:
-
In this work, we couple theoretical and experimental approaches to understand and reduce the losses of wide bandgap Br-rich perovskite pin devices at open-circuit voltage (VOC) and short-circuit current (JSC) conditions. A mismatch between the internal quasi-Fermi level splitting (QFLS) and the external VOC is detrimental for these devices. We demonstrate that modifying the perovskite top-surface with guanidinium-Br and imidazolium-Br forms a low-dimensional perovskite phase at the n-interface, suppressing the QFLS-VOC mismatch, and boosting the VOC. Concurrently, the use of an ionic interlayer or a self-assembled monolayer at the p-interface reduces the inferred field screening induced by mobile ions at JSC, promoting charge extraction and raising the JSC. The combination of the n- and p-type optimizations allows us to approach the thermodynamic potential of the perovskite absorber layer, resulting in 1 cm2 devices with performance parameters of VOCs up to 1.29 V, fill factors above 80% and JSCs up to 17 mA/cm2, in addition to a thermal stability T80 lifetime of more than 3500 h at 85 °C.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, pdf, 4.6MB, Terms of use)
-
(Preview, Supplementary materials, pdf, 3.6MB, Terms of use)
-
- Publisher copy:
- 10.1038/s41467-023-36141-8
Authors
- Publisher:
- Springer Nature
- Journal:
- Nature communications More from this journal
- Volume:
- 14
- Issue:
- 1
- Article number:
- 932
- Publication date:
- 2023-02-20
- Acceptance date:
- 2023-01-17
- DOI:
- EISSN:
-
2041-1723
- Pmid:
-
36805448
- Language:
-
English
- Keywords:
- Pubs id:
-
1329379
- Local pid:
-
pubs:1329379
- Deposit date:
-
2023-04-05
Terms of use
- Copyright holder:
- Caprioglio et al.
- Copyright date:
- 2023
- Rights statement:
- © The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
- Licence:
- CC Attribution (CC BY)
If you are the owner of this record, you can report an update to it here: Report update to this record