Faradaic junction and isoenergetic charge transfer mechanism on semiconductor/semiconductor interfaces

Mingzhi Chen, Hongzheng Dong, Mengfan Xue, Chunsheng Yang, Pin Wang, Yanliang Yang, Heng Zhu, Congping Wu, Yingfang Yao, Wenjun Luo () and Zhigang Zou
Additional contact information
Mingzhi Chen: Nanjing University
Hongzheng Dong: Nanjing University
Mengfan Xue: Nanjing University
Chunsheng Yang: Nanjing University
Pin Wang: Nanjing University
Yanliang Yang: Nanjing University
Heng Zhu: Nanjing University
Congping Wu: Nanjing University
Yingfang Yao: Nanjing University
Wenjun Luo: Nanjing University
Zhigang Zou: Nanjing University

Nature Communications, 2021, vol. 12, issue 1, 1-8

Abstract: Abstract Energy band alignment theory has been widely used to understand interface charge transfer in semiconductor/semiconductor heterojunctions for solar conversion or storage, such as quantum-dot sensitized solar cells, perovskite solar cells and photo(electro)catalysis. However, abnormally high open-circuit voltage and charge separation efficiency in these applications cannot be explained by the classic theory. Here, we demonstrate a Faradaic junction theory with isoenergetic charge transfer at semiconductor/semiconductor interface. Such Faradaic junction involves coupled electron and ion transfer, which is substantively different from the classic band alignment theory only involving electron transfer. The Faradaic junction theory can be used to explain these abnormal results in previous studies. Moreover, the characteristic of zero energy loss of charge transfer in a Faradaic junction also can provide a possibility to design a solar conversion device with a large open-circuit voltage beyond the Shockley-Queisser limit by the band alignment theory.

Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.nature.com/articles/s41467-021-26661-6 Abstract (text/html)

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:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-26661-6

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

DOI: 10.1038/s41467-021-26661-6

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

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