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RANDOM POLYFLUORENE CO-POLYMERS DESIGNED FOR A BETTER OPTICAL ABSORPTION COVERAGE OF THE VISIBLE REGION OF THE ELECTROMAGNETIC SPECTRUM
Chalmers, Sweden.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska högskolan.
Chalmers, Sweden.
Linköpings universitet, Institutionen för fysik, kemi och biologi, Biomolekylär och Organisk Elektronik. Linköpings universitet, Tekniska högskolan.
Vise andre og tillknytning
2014 (engelsk)Inngår i: Bulletin of the Chemical Society of Ethiopia, ISSN 1011-3924, E-ISSN 1726-801X, Vol. 28, nr 1, s. 121-130Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Two alternating polyfluorenes (APFO15-F8BT and APFO3-F8BT) with full absorption of the visible region of the electromagnetic radiation were designed and synthesized for bulk-heterojunction solar cell devices. The optical and electrochemical properties of the two polymers were studied. The two polymers exhibited strong absorption in the visible region with no significant valley over the visible region extending up to 650 nm. Deep HOMO and ideally situated LUMO energy levels were the characteristics of the two polymers as revealed from the square wave voltammogram study: desired properties for extracting high open circuit voltage and for a facile charge transfer to the acceptor component in devices to take place, respectively. Photovoltaic devices were fabricated by blending the two polymers with PCBM[70] and up to similar to 2% power conversion efficiency were obtained.

sted, utgiver, år, opplag, sider
Chemical Society of Ethiopia , 2014. Vol. 28, nr 1, s. 121-130
Emneord [en]
Polyfluorenes; Bulk-heterojunction solar cells; Optical absorption; HOMO and LUMO
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-111761DOI: 10.4314/bcse.v28i1.14ISI: 000342536400014OAI: oai:DiVA.org:liu-111761DiVA, id: diva2:759763
Merknad

Funding Agencies|International Science Programme (ISP), Uppsala University, Sweden

Tilgjengelig fra: 2014-10-31 Laget: 2014-10-31 Sist oppdatert: 2017-12-05

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