Interfacial analysis and properties of regioregular poly(3-hexyl thiophene) spin-coated on an indium tin oxide-coated glass substrate
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Interfacial analysis of the rrP3HT samples spin-coated on a glass substrate was studied in detail using transmission electron microscopy (TEM) and SEM measurements. Very homogeneous and smooth polymer (P3HT and PEDOT:PSS) layers are observed on the glass substrate. The ITO surface shows a surface roughness, with a layer of about 15 nm. Structural characteristics of the polymer blends were studied using Raman spectroscopy and photoluminescence (PL). The complete reduction of PL of P3HT after mixing with C60 in a 1:1 wt.% indicates an effective charge transfer from P3HT to C60. Thermo-gravimetric analysis showed that the commercially bought materials are of high purity.
KeywordsFullerene Phenylenevinylenes P3HT Film Regioregular Poly Effective Charge Transfer
The authors would like to acknowledge the financial support of the Council for Scientific and Industrial Research (CSIR), South Africa (Project No: HGERA7S). The authors are very grateful to Drs. Christoph Mitterbauer and David Wall of the FEI Company (The Netherlands, Eindhoven) for helping with the microscopy analysis.
- 12.Rowlands N, Munroe PR (1998) Microstr Sci 26:233Google Scholar
- 13.Phaneuf MW, Li J, Malis T (1998) Microsc Microanal 4 (Suppl. 2, Proceeding):492Google Scholar
- 16.Cairney JM, Smith RD, Munroe PR (2000) Microsc Microanal 6:452Google Scholar