Motaung, DEMalgas, GFArendse, CJ2011-02-072011-02-072010Motaung, DE, Malgas, GF and Arendse, CJ. 2010. Correlation between the morphology and photo-physical properties of P3HT: fullerene blends. Journal of Materials Science, Vol. 45(12), pp 3276–32830022-2461http://www.springerlink.com/content/v3103035175201m1/fulltext.pdfhttp://hdl.handle.net/10204/4834Copyright:2010 Springer. This is a pre print version of the work. The definitive version is published in Journal of Materials Science, Vol.45(12), pp 3276-3283The photo-induced charge transfer and optoelectronic efficiency of the solar cells correlated to the morphology and the structure of P3HT:C60 blend was studied by means of photoluminescence and electron spin resonance (ESR). The occurrence of photo-induced charge transfer, well-known for blends of P3HT with fullerenes, was evidenced in blends of P3HT:C60 (1:1 wt ratio) by a strong partially quenching of the P3HT luminescence. The ESR measurements allowed one to quantify the charge transfer between P3HT and C60, which resulted in positive P3HT polarons. Wide-angle X-ray scattering (WAXS) and UV–vis spectroscopy showed that an inclusion of a C60 fullerene in the P3HT matrix lead to lower peak intensities and dark Debye rings and a blue shift on the p–p* interband transition of the P3HT as well as a reduction in the absorption coefficient. Selected area electron diffraction patterns of a well-ordered sample of P3HT exhibit distinct diffraction rings indicating that the P3HT forms a polycrystalline film. The large-scale phase separation of P3HT and C60 resulted from large C60 agglomerations during spin coating lead to a low power conversion efficiency of 0.2 9 10-4%.enFullerene blendsPhoto physical propertiesMorphologyMaterial scienceElectron spin resonance (ESR)Wide-angle X-ray scattering (WAXS)P3HT luminescenceArticleMotaung, D., Malgas, G., & Arendse, C. (2010). Correlation between the morphology and photo-physical properties of P3HT: fullerene blends. http://hdl.handle.net/10204/4834Motaung, DE, GF Malgas, and CJ Arendse "Correlation between the morphology and photo-physical properties of P3HT: fullerene blends." (2010) http://hdl.handle.net/10204/4834Motaung D, Malgas G, Arendse C. Correlation between the morphology and photo-physical properties of P3HT: fullerene blends. 2010; http://hdl.handle.net/10204/4834.TY - Article AU - Motaung, DE AU - Malgas, GF AU - Arendse, CJ AB - The photo-induced charge transfer and optoelectronic efficiency of the solar cells correlated to the morphology and the structure of P3HT:C60 blend was studied by means of photoluminescence and electron spin resonance (ESR). The occurrence of photo-induced charge transfer, well-known for blends of P3HT with fullerenes, was evidenced in blends of P3HT:C60 (1:1 wt ratio) by a strong partially quenching of the P3HT luminescence. The ESR measurements allowed one to quantify the charge transfer between P3HT and C60, which resulted in positive P3HT polarons. Wide-angle X-ray scattering (WAXS) and UV–vis spectroscopy showed that an inclusion of a C60 fullerene in the P3HT matrix lead to lower peak intensities and dark Debye rings and a blue shift on the p–p* interband transition of the P3HT as well as a reduction in the absorption coefficient. Selected area electron diffraction patterns of a well-ordered sample of P3HT exhibit distinct diffraction rings indicating that the P3HT forms a polycrystalline film. The large-scale phase separation of P3HT and C60 resulted from large C60 agglomerations during spin coating lead to a low power conversion efficiency of 0.2 9 10-4%. DA - 2010 DB - ResearchSpace DP - CSIR KW - Fullerene blends KW - Photo physical properties KW - Morphology KW - Material science KW - Electron spin resonance (ESR) KW - Wide-angle X-ray scattering (WAXS) KW - P3HT luminescence LK - https://researchspace.csir.co.za PY - 2010 SM - 0022-2461 T1 - Correlation between the morphology and photo-physical properties of P3HT: fullerene blends TI - Correlation between the morphology and photo-physical properties of P3HT: fullerene blends UR - http://hdl.handle.net/10204/4834 ER -