Low band gap polymers for organic solar cells

Eva Bundgaard; Frederik C Krebs

doi:10.1117/12.679012

Low band gap polymers for organic solar cells

Eva Bundgaard, Frederik C Krebs

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

The synthesis of copolymers based on thiophene, benzothiadiazole and benzo-bis-thiadiazole are described. The polymers were obtained by employing Stille cross coupling polymerization. The polymers were characterized by NMR, size exclusion chromatography, UV-vis and ultraviolet photoelectron spectroscopy. The results obtained from UV-vis and ultraviolet photoelectron spectroscopy showed band gaps of 2.1-1.7 eV for polymers based on benzothiadiazole and 0.7 eV for polymers based on benzo-bis-thiadiazole. Furthermore the results showed that the band gap decreases with an increase in the number, n, of thiophenes in the polymer repeating unit (n= 1-4). Large area photovoltaic devices were prepared and the results of these devices are described.
© (2006) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Original language	English
Title of host publication	Organic Photovoltaics 7
Editors	Z.H. Kafafi, P.A. Lane
Number of pages	10
Volume	6334
Place of Publication	Bellingham
Publisher	SPIE - International Society for Optical Engineering
Publication date	2008
Article number	63340T
DOIs	https://doi.org/10.1117/12.679012
Publication status	Published - 2008
Event	SPIE Optics + Photonics 2006 - San Diego, United States Duration: 13 Aug 2006 → 17 Aug 2006

Conference

Conference	SPIE Optics + Photonics 2006
Country/Territory	United States
City	San Diego
Period	13/08/2006 → 17/08/2006

Series	Proceedings of SPIE - The International Society for Optical Engineering
ISSN	0277-786X

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10.1117/12.679012

2006 34 posterFinal published version, 178 KB

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Polymer Solar Cells for Solar Energy Conversion
Krebs, F. C. (Project Manager)
01/01/2008 → 31/12/2013
Project: Research

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Bundgaard, E & Krebs, FC 2008, Low band gap polymers for organic solar cells. in ZH Kafafi & PA Lane (eds), Organic Photovoltaics 7. vol. 6334, 63340T, SPIE - International Society for Optical Engineering, Bellingham, Proceedings of SPIE - The International Society for Optical Engineering, SPIE Optics + Photonics 2006, San Diego, California, United States, 13/08/2006. https://doi.org/10.1117/12.679012

Low band gap polymers for organic solar cells. / Bundgaard, Eva; Krebs, Frederik C.
Organic Photovoltaics 7. ed. / Z.H. Kafafi; P.A. Lane. Vol. 6334 Bellingham: SPIE - International Society for Optical Engineering, 2008. 63340T (Proceedings of SPIE - The International Society for Optical Engineering).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Low band gap polymers for organic solar cells

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Polymer Solar Cells for Solar Energy Conversion

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