An alternative approach for improving performance of organic photovoltaics by light-enhanced annealing

En Ping Yao, Chiu Sheng Ho, Chang Yu, E. Ling Huang, Ying Nan Lai, Wei Chou Hsu

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

This work proposes an approach for improving the performance of poly(3-hexylthiophene) (P3HT-) based organic photovoltaics (OPVs). P3HT-based bulk heterojunction (BHJ) film can absorb the energy from 532 nm laser light and be transformed into favorable morphology. A combination of traditional thermal annealing and laser annealing improved device performance, with a slight increase in fill factor and a significant improvement in short-circuit current density. Better crystallization and a higher degree of molecular order in the thermal/laser coannealed P3HT-based BHJ film were observed through X-ray diffraction and Raman spectroscopy.

Original languageEnglish
Article number120693
JournalInternational Journal of Photoenergy
Volume2014
DOIs
Publication statusPublished - 2014 Jul 9

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

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