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Proceedings Paper

Blue spectral shift of P3HT organic film by KrF excimer laser ablation
Author(s): Li Jiang; Xiaohui Bao; Yoshihisa Uchida; Jingnan Liu; Y. P. Kathuria; Hideo Furuhashi; Yoshiyuki Uchida
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Paper Abstract

A technique for morphology control of self-assembled organic films based on laser ablation is presented. The regioregular poly 3-hexylthiophene (RR-P3HT) films prepared by using drop casting method and spin coating method are irradiated and ablated by the ultraviolet KrF excimer laser. Absorption spectra and XRD profiles of the films are investigated. For spin coated films, Blue absorption spectral shift is observed; For drop cast films, Blue shift in the absorption spectra, accompanied with the disappearance of the peak intensity of XRD profiles, are observed. The results indicate that molecular structure has been changed due to photo-thermal effect and molecule cutting effect of laser ablation.

Paper Details

Date Published: 24 November 2009
PDF: 9 pages
Proc. SPIE 7509, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration, 75090F (24 November 2009); doi: 10.1117/12.840322
Show Author Affiliations
Li Jiang, Aichi Institute of Technology (Japan)
Suzhou Univ. of Science and Technology (China)
Xiaohui Bao, Aichi Institute of Technology (Japan)
Yoshihisa Uchida, Aichi Institute of Technology (Japan)
Jingnan Liu, Southeast Univ. (China)
Y. P. Kathuria, Aichi Institute of Technology (Japan)
Hideo Furuhashi, Aichi Institute of Technology (Japan)
Yoshiyuki Uchida, Aichi Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 7509:
2009 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration
Xuping Zhang; Wojtek J. Bock; Xuejun Lu; Hai Ming, Editor(s)

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