Enhanced optoelectronic coupling for perovskite/silicon tandem solar cells

Erkan Aydin (), Esma Ugur (), Bumin K. Yildirim, Thomas G. Allen, Pia Dally, Arsalan Razzaq, Fangfang Cao, Lujia Xu, Badri Vishal, Aren Yazmaciyan, Ahmed A. Said, Shynggys Zhumagali, Randi Azmi, Maxime Babics, Andreas Fell, Chuanxiao Xiao and Stefaan De Wolf ()
Additional contact information
Erkan Aydin: King Abdullah University of Science and Technology (KAUST)
Esma Ugur: King Abdullah University of Science and Technology (KAUST)
Bumin K. Yildirim: King Abdullah University of Science and Technology (KAUST)
Thomas G. Allen: King Abdullah University of Science and Technology (KAUST)
Pia Dally: King Abdullah University of Science and Technology (KAUST)
Arsalan Razzaq: King Abdullah University of Science and Technology (KAUST)
Fangfang Cao: Chinese Academy of Sciences
Lujia Xu: King Abdullah University of Science and Technology (KAUST)
Badri Vishal: King Abdullah University of Science and Technology (KAUST)
Aren Yazmaciyan: King Abdullah University of Science and Technology (KAUST)
Ahmed A. Said: King Abdullah University of Science and Technology (KAUST)
Shynggys Zhumagali: King Abdullah University of Science and Technology (KAUST)
Randi Azmi: King Abdullah University of Science and Technology (KAUST)
Maxime Babics: King Abdullah University of Science and Technology (KAUST)
Andreas Fell: Fraunhofer Institute for Solar Energy Systems
Chuanxiao Xiao: Chinese Academy of Sciences
Stefaan De Wolf: King Abdullah University of Science and Technology (KAUST)

Nature, 2023, vol. 623, issue 7988, 732-738

Abstract: Abstract Monolithic perovskite/silicon tandem solar cells are of great appeal as they promise high power conversion efficiencies (PCEs) at affordable cost. In state-of-the-art tandems, the perovskite top cell is electrically coupled to a silicon heterojunction bottom cell by means of a self-assembled monolayer (SAM), anchored on a transparent conductive oxide (TCO), which enables efficient charge transfer between the subcells1–3. Yet reproducible, high-performance tandem solar cells require energetically homogeneous SAM coverage, which remains challenging, especially on textured silicon bottom cells. Here, we resolve this issue by using ultrathin (5-nm) amorphous indium zinc oxide (IZO) as the interconnecting TCO, exploiting its high surface-potential homogeneity resulting from the absence of crystal grains and higher density of SAM anchoring sites when compared with commonly used crystalline TCOs. Combined with optical enhancements through equally thin IZO rear electrodes and improved front contact stacks, an independently certified PCE of 32.5% was obtained, which ranks among the highest for perovskite/silicon tandems. Our ultrathin transparent contact approach reduces indium consumption by approximately 80%, which is of importance to sustainable photovoltaics manufacturing4.

Date: 2023
References: Add references at CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.nature.com/articles/s41586-023-06667-4 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:623:y:2023:i:7988:d:10.1038_s41586-023-06667-4

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/s41586-023-06667-4

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().