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Photovoltaic Study of p-type NiO/PC70BM Hybrid Solar Cells
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. (Materialfysik)
Dept. of Chemical Engineering, Technische Universiteit Delft, The Netherlands.
Dept. of Chemical Enginering, Technische Universiteit Delft, The Netherlands.
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering. Karlstad University, Faculty of Technology and Science, Materials Science. (Materialfysik)ORCID iD: 0000-0002-1609-8909
2011 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Generally, hybrid solar cells are fabricated by using electron donating conducting polymers or molecules and electron accepting inorganic material e.g. metal oxide nanoparticles, such as TiO2, ZnO or SnO2. Inorganic metal oxides posses interesting physical properties like high electron mobility, transparency in the visible spectrum and high dielectric constant. However, there are very few reports on hybrid solar cells fabricated with p-type metal oxide and n-type organic molecules. We have studied photovoltaic properties of bilayer hybrid solar cells constituted of p-type NiO and [6,6]-phenyl-C70-butyric acid methyl ester (PC70BM) molecule. The thin films of NiO were prepared on fluorine doped SnO2 (FTO) substrates by RF sputtering in Ar/O2 mixture atmosphere. To fabricate hybrid solar cells, a PC70BM solution was spin coated on top of the smooth and uniform layer of NiO, having thickness of 90 nm. Current-voltage characteristics were measured in dark and under illumination with monochromatic light of wavelength 460 nm and an incident illumination power of 9 mW/cm2. A short circuit current density of 0.15 mA/cm2, open circuit voltage of 0.23 V, and fill factor of 0.26 were found. To understand the photovoltaic mechanism of this type of hybrid solar cells we studied also the bulk heterojunctions made up of p-type NiO nanoparticles with different PCBM molecules.

Place, publisher, year, edition, pages
2011.
Keywords [en]
NiO, Photovoltaic, Hybrid solar cells, PCBM
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:kau:diva-15819OAI: oai:DiVA.org:kau-15819DiVA, id: diva2:572752
Conference
MRS Spring Meeting 2011, San Francisco, USA, April 26-29, 2011. Symposium B: Third-Generation and Emerging Solar-Cell Technologies.
Funder
Swedish Research Council, 2010-4155Available from: 2012-11-28 Created: 2012-11-28 Last updated: 2017-12-06Bibliographically approved

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