Enhancing stability and efficiency of perovskite solar cells with crosslinkable silane-functionalized and doped fullerene

Yang Bai, Qingfeng Dong, Yuchuan Shao, Yehao Deng, Qi Wang, Liang Shen, Dong Wang, Wei Wei and Jinsong Huang ()
Additional contact information
Yang Bai: College of Engineering, University of Nebraska-Lincoln
Qingfeng Dong: College of Engineering, University of Nebraska-Lincoln
Yuchuan Shao: College of Engineering, University of Nebraska-Lincoln
Yehao Deng: College of Engineering, University of Nebraska-Lincoln
Qi Wang: College of Engineering, University of Nebraska-Lincoln
Liang Shen: College of Engineering, University of Nebraska-Lincoln
Dong Wang: College of Engineering, University of Nebraska-Lincoln
Wei Wei: College of Engineering, University of Nebraska-Lincoln
Jinsong Huang: College of Engineering, University of Nebraska-Lincoln

Nature Communications, 2016, vol. 7, issue 1, 1-9

Abstract: Abstract The instability of hybrid perovskite materials due to water and moisture arises as one major challenge to be addressed before any practical application of the demonstrated high efficiency perovskite solar cells. Here we report a facile strategy that can simultaneously enhance the stability and efficiency of p–i–n planar heterojunction-structure perovskite devices. Crosslinkable silane molecules with hydrophobic functional groups are bonded onto fullerene to make the fullerene layer highly water-resistant. Methylammonium iodide is introduced in the fullerene layer for n-doping via anion-induced electron transfer, resulting in dramatically increased conductivity over 100-fold. With crosslinkable silane-functionalized and doped fullerene electron transport layer, the perovskite devices deliver an efficiency of 19.5% with a high fill factor of 80.6%. A crosslinked silane-modified fullerene layer also enhances the water and moisture stability of the non-sealed perovskite devices by retaining nearly 90% of their original efficiencies after 30 days’ exposure in an ambient environment.

Date: 2016
References: Add references at CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.nature.com/articles/ncomms12806 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:7:y:2016:i:1:d:10.1038_ncomms12806

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

DOI: 10.1038/ncomms12806

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 ().