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Fully-solution-processed organic solar cells with a highly efficient paper-based light trapping element
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska fakulteten.
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2015 (engelsk)Inngår i: Journal of Materials Chemistry A, ISSN 2050-7488, Vol. 3, nr 48, s. 24289-24296Artikkel i tidsskrift (Fagfellevurdert) Published
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Abstract [en]

We demonstrate the use of low cost paper as an efficient light-trapping element for thin film photovoltaics. We verify its use in fully-solution processed organic photovoltaic devices with the highest power conversion efficiency and the lowest internal electrical losses reported so far, the architecture of which - unlike most of the studied geometries to date - is suitable for upscaling, i.e. commercialization. The use of the paper-reflector enhances the external quantum efficiency (EQE) of the organic photovoltaic device by a factor of approximate to 1.5-2.5 over the solar spectrum, which rivals the light harvesting efficiency of a highly-reflective but also considerably more expensive silver mirror back-reflector. Moreover, by detailed theoretical and experimental analysis, we show that further improvements in the photovoltaic performance of organic solar cells employing PEDOT:PSS as both electrodes rely on the future development of high-conductivity and high-transmittance PEDOT:PSS. This is due optical losses in the PEDOT:PSS electrodes.

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ROYAL SOC CHEMISTRY , 2015. Vol. 3, nr 48, s. 24289-24296
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URN: urn:nbn:se:liu:diva-123845DOI: 10.1039/c5ta07154bISI: 000366163000014OAI: oai:DiVA.org:liu-123845DiVA, id: diva2:892841
Merknad

Funding Agencies|Swedish Energy Agency; Knut and Alice Wallenberg Foundation through a Wallenberg Scholar grant; Knut and Alice Wallenberg Foundation through the project Power Papers

Tilgjengelig fra: 2016-01-11 Laget: 2016-01-11 Sist oppdatert: 2017-12-01

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Tang, ZhengElfwing, AndersMelianas, ArmantasBergqvist, JonasBao, QinyeInganäs, Olle

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