TITLE

Ionic liquid-functionalized carbon nanoparticles-modified cathode for efficiency enhancement in polymer solar cells

AUTHOR(S)
Xiaohong Chen; Jiaxiang Yang; Jiong Lu; Kiran Kumar Manga; Kian Ping Loh; Furong Zhu
PUB. DATE
September 2009
SOURCE
Applied Physics Letters;9/28/2009, Vol. 95 Issue 13, p133305
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The power conversion efficiency (PCE) of regioregular poly(3-hexylthiophene) (P3HT) and {6,6}-phenyl C61-butyric acid methylester (PCBM)-based polymer solar cells was increased using an ionic liquid-functionalized carbon nanoparticles (ILCNs) thin film-modified cathode. The PCE of P3HT:PCBM based-polymer solar cells with a conventional aluminum (Al)-only cathode was increased by 20%–30% when the identical devices were made with an ILCNs-modified Al cathode, but its PCE was 10% lower than that of devices with LiF/Al cathode, measured under AM1.5G illumination of 100 mW/cm2. The ILCN interlayer approach, however, offers practical advantages to LiF in terms of its solution-processability, which is compatible with low cost, large area, and flexible solar cell fabrication.
ACCESSION #
44449089

 

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