Proceedings of the Korean Vacuum Society Conference (한국진공학회:학술대회논문집)
- 2012.08a
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- Pages.163-163
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- 2012
Real-Time Observation of Temperature-Dependen Strain in Poly (3-hexylthiophene) Crystals in a Mixed Donor and Acceptor Thin Film
- Published : 2012.08.20
Abstract
We observed strain evolution of P3HT crystals in P3HT:PCBM films and the effect of Al electrode on the evolution during real time annealing process. Based on simple assumptions, both relaxed lattice parameters and thermal expansion coefficient could be quantitatively determined. P3HT:PCBM films displayed tensile strain in as-prepared samples regardless of the presence of an Al layer. In the absence of Al layer, P3HT crystals showed only strain relaxation at an annealing temperature of