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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/3733

Title: Thermal-induced changes on the properties of spin-coated P3HT:C60 thin films for solar cell applications
Authors: Motaung, DE
Malgas, GF
Arendse, CJ
Mavundla, SE
Oliphant, CJ
Knoesen, D
Keywords: 3-hexylthiophene
Optical properties
Annealing
Thermal transition
Thermo-gravimetric analysis
Ultraviolet-visible spectroscopy
Raman spectroscopy
Solar energy materials
Spin-coated P3HT:C60
Thin films
Solar cells
Issue Date: Sep-2009
Publisher: Elsevier
Citation: Motaung, DE, Malgas, GF, Arendse, CJ et al. 2009. Thermal-induced changes on the properties of spin-coated P3HT:C60 thin films for solar cell applications. Solar Energy Materials and Solar Cells, Vol. 93(9), pp 1674-1680
Abstract: The thermal transition behaviour, optical and structural properties of spin-coated P3HT:C60 blended films with different C60 ratios were investigated using differential scanning calorimetry (DSC), thermo-gravimetric analysis (TGA), ultraviolet–visible (UV–vis) spectroscopy, photoluminescence (PL), fourier transform infrared absorption (FT-IR) spectroscopy and raman spectroscopy. DSC analysis showed that the P3HT:C60 blends have quite different thermal characteristics. The absorption spectra of the annealed P3HT:C60 (1:1wt%) films becomes enhanced and red shifted. This feature is evident in the photoluminescence measurements where the formation of polymer crystallites upon annealing is observed. Raman spectroscopy showed a substantial ordering in the polymer film during annealing. It was found that the performance of a P3HT:C60 (1:1wt%) device was dramatically improved by annealing.
Description: Copyright: 2009 Elsevier. This is the author's version of the work. It is posted here by permission of Elsevier for your personal use. Not for redistribution. The definitive version was published in the journal, Solar Energy Materials and Solar Cells, Vol. 93(9), pp 1674-1680
URI: http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235773%232009%23999069990%231271056%23FLA%23&_cdi=5773&_pubType=J&_auth=y&_acct=C000049363&_version=1&_urlVersion=0&_userid=958262&md5=289fcdd6903b2a67707baaa612fed06e
http://hdl.handle.net/10204/3733
ISSN: 0927-0248
Appears in Collections:Nanotechnology
General science, engineering & technology

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