Dual electron donor/electron acceptor character of a conjugated polymer in efficient photovoltaic diodes
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- 7 May 2007
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 90 (19)
- https://doi.org/10.1063/1.2738197
Abstract
The authors report efficient photovoltaic diodes which use poly((9,9-dioctylfluorene)-2,7-diyl-alt-[4,7-bis(3-hexylthien-5-yl)-2,1,3-benzothiadiazole]-2′,2″-diyl) (F8TBT) both as electron acceptor, in blends with poly(3-hexylthiophene), and as hole acceptor, in blends with (6,6)-phenyl C61-butyric acid methyl ester. In both cases external quantum efficiencies of over 25% are achieved, with a power conversion efficiency of 1.8% under simulated sunlight for optimized F8TBT/poly(3-hexylthiophene) devices. The ambipolar nature of F8TBT is also demonstrated by the operation of light-emitting F8TBT transistors. The equivalent p- and n-type operation in this conjugated polymer represent an important extension of the range of useful n-type materials which may be developed.Keywords
This publication has 23 references indexed in Scilit:
- Efficient Top‐Gate, Ambipolar, Light‐Emitting Field‐Effect Transistors Based on a Green‐Light‐Emitting PolyfluoreneAdvanced Materials, 2006
- Spatial control of the recombination zone in an ambipolar light-emitting organic transistorNature Materials, 2005
- Light emission from an ambipolar semiconducting polymer field-effect transistorApplied Physics Letters, 2005
- Thermally Stable, Efficient Polymer Solar Cells with Nanoscale Control of the Interpenetrating Network MorphologyAdvanced Functional Materials, 2005
- General observation of n-type field-effect behaviour in organic semiconductorsNature, 2005
- Low bandgap alternating polyfluorene copolymers in plastic photodiodes and solar cellsApplied Physics A, 2004
- Unification of the Hole Transport in Polymeric Field-Effect Transistors and Light-Emitting DiodesPhysical Review Letters, 2003
- Plastic Solar CellsAdvanced Functional Materials, 2001
- Polymer Photovoltaic Cells: Enhanced Efficiencies via a Network of Internal Donor-Acceptor HeterojunctionsScience, 1995
- Efficient photodiodes from interpenetrating polymer networksNature, 1995