Stable ultrathin partially oxidized copper film electrode for highly efficient flexible solar cells

Guoqing Zhao, Wei Wang, Tae-Sung Bae, Sang-Geul Lee, ChaeWon Mun, Sunghun Lee, Huashun Yu, Gun-Hwan Lee, Myungkwan Song () and Jungheum Yun ()
Additional contact information
Guoqing Zhao: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University
Wei Wang: Institute of Hybrid Materials, The Growing Base for State Key Laboratory, Qingdao University
Tae-Sung Bae: Jeonju Center, Korea Basic Science Institute
Sang-Geul Lee: Daegu Center, Korea Basic Science Institute
ChaeWon Mun: Korea Institute of Materials Science
Sunghun Lee: Korea Institute of Materials Science
Huashun Yu: Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University
Gun-Hwan Lee: Korea Institute of Materials Science
Myungkwan Song: Korea Institute of Materials Science
Jungheum Yun: Korea Institute of Materials Science

Nature Communications, 2015, vol. 6, issue 1, 1-8

Abstract: Abstract Advances in flexible optoelectronic devices have led to an increasing need for developing highly efficient, low-cost, flexible transparent conducting electrodes. Copper-based electrodes have been unattainable due to the relatively low optical transmission and poor oxidation resistance of copper. Here, we report the synthesis of a completely continuous, smooth copper ultra-thin film via limited copper oxidation with a trace amount of oxygen. The weakly oxidized copper thin film sandwiched between zinc oxide films exhibits good optoelectrical performance (an average transmittance of 83% over the visible spectral range of 400–800 nm and a sheet resistance of 9 Ω sq−1) and strong oxidation resistance. These values surpass those previously reported for copper-based electrodes; further, the record power conversion efficiency of 7.5% makes it clear that the use of an oxidized copper-based transparent electrode on a polymer substrate can provide an effective solution for the fabrication of flexible organic solar cells.

Date: 2015
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms9830 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:6:y:2015:i:1:d:10.1038_ncomms9830

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

DOI: 10.1038/ncomms9830

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 ().