Publications
Detailed Information
Morphological and electrical effect of an ultrathin iridium oxide hole extraction layer on P3HT:PCBM bulk-heterojunction solar cells
Cited 23 time in
Web of Science
Cited 25 time in Scopus
- Authors
- Issue Date
- 2011-04
- Publisher
- Elsevier BV
- Citation
- Solar Energy Materials and Solar Cells, Vol.95 No.4, pp.1146-1150
- Abstract
- An ultrathin iridium layer was treated with O-2-plasma to form an iridium oxide (IrOx), employed as a hole extraction layer in order to replace poly(3,4-ethylenedioxythiophene):poly(styrene-sulfonate) (PEDOT:PSS) in organic photovoltaic (OPV) cells with poly(3-hexylthiophene):phenyl-C61-butyric acid methyl ester (P3HT:PCBM). The IrOx layer affects the self-organization of the P3HT:PCBM photo-active layer due to its hydrophobic nature, inducing a well-organized intraplane structure with lamellae oriented normal to the substrate. Synchrotron radiation photoelectron spectroscopy results showed that the work function increased by 0.57 eV as the It layer on ITO changed to IrOx by the O-2-plasma treatment. The OPV cell with IrOx (2.0 nm) exhibits increased power conversion efficiency as high as 3.5% under 100 mW cm(-2) illumination with an air mass (AM 1.5G) condition, higher than that of 3.3% with PEDOT:PSS. (C) 2010 Elsevier B.V. All rights reserved.
- ISSN
- 0927-0248
- Files in This Item:
- There are no files associated with this item.
Item View & Download Count
Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.