Random polyfluorene co-polymers designed for a better optical absorption coverage of the visible region of the electromagnetic spectrum
Journal article, 2014

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.

photovoltaic cells

mobility

heterojunction solar-cells

performance

efficiency

electron

conjugated polymers

additives

Author

Desta Antenehe Gedefaw

Chalmers, Chemical and Biological Engineering, Polymer Technology

Z. F. Ma

Linköping University

Patrik Henriksson

Chalmers, Chemical and Biological Engineering, Polymer Technology

Fengling Zhang

Linköping University

Mats Andersson

Chalmers, Chemical and Biological Engineering, Polymer Technology

Wendimagegn Mammo

Addis Ababa University

Bulletin of the Chemical Society of Ethiopia

1011-3924 (ISSN) 1726-801X (eISSN)

Vol. 28 1 121-130

Subject Categories

Chemical Engineering

DOI

10.4314/bcse.v28i1.14

More information

Latest update

2/28/2018