Title of article
Thermal-induced changes on the properties of spin-coated P3HT:C60 thin films for solar cell applications
Author/Authors
Motaung، نويسنده , , David E. and Malgas، نويسنده , , Gerald F. and Arendse، نويسنده , , Christopher J. and Mavundla، نويسنده , , Sipho E. and Oliphant، نويسنده , , Clive J. and Knoesen، نويسنده , , Dirk، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
7
From page
1674
To page
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 (1:1 wt%) 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 (1:1 wt%) device was dramatically improved by annealing.
Keywords
Thermal transition , Annealing , Optical properties , poly(3-hexylthiophene)
Journal title
Solar Energy Materials and Solar Cells
Serial Year
2009
Journal title
Solar Energy Materials and Solar Cells
Record number
1483219
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