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Solution Processed NiO Hole Transporting Layer in P3HT:PCBM Bulk Heterojunction Organic Solar Cells
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. (materialfysik)
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science. (Materialfysik)
2011 (English)Conference paper, Poster (Refereed)
Abstract [en]

Despite of low fabrication cost and flexibility, limited life time is the major disadvantage of bulk heterojunction organic solar cells (OSCs). The main causes of short life time of OSCs is the degradation of active layer in presence of light and O2 and the effect of the acidic PEDOT:PSS on the ITO electrode. To overcome this problem PEDOT: PSS can be replaced by a p-type metal oxide hole transportation layer, such as NiO. There are reports on vacuum deposited NiO hole transporting layers in OSCs. Here, we have used the low-cost spin coating technique to deposit the NiO layer from a dispersion of NiO particles in methanol. Concentration and deposition parameters were optimized to obtain 40-50 nm thick layer of NiO as observed by tapping mode atomic force microscopy. The device performance of P3HT:PCBM solar cell with ITO/PEDOT: PSS and ITO/NiO electrodes was compared.

Place, publisher, year, edition, pages
2011.
Keyword [en]
NiO, ITO, Organic solar cell
National Category
Condensed Matter Physics
Research subject
Physics; Materials Science
Identifiers
URN: urn:nbn:se:kau:diva-15818OAI: oai:DiVA.org:kau-15818DiVA: diva2:572746
Conference
MRS Spring Meeting 2011, San Francisco, USA, April 25-29, 2011. Symposium B: Third-Generation and Emerging Solar-Cell Technologies.
Funder
Swedish Research Council
Available from: 2012-11-28 Created: 2012-11-28 Last updated: 2013-09-16Bibliographically approved

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