Enhancement of Third-Order Optical Susceptibility in Polythiophene Thin Films Fabricated by Drop Casting Using Anhydrous Solvent

• Takashi Kobayashi

• Toshiyuki Endo

• Wataru Shinke

• Takashi Nagase

• Shuichi Murakami

• Hiroyoshi Naito

抄録

To maximize the potential of poly(3-hexylthiophene) (P3HT) as a nonlinear optical material, we examined the conditions for fabricating thin films. The results indicate that the third-order optical susceptibility χ (3) , which was determined by electroabsorption spectroscopy, is fourfold enhanced when thin films are drop cast from an anhydrous chloroform solution in an inert atmosphere, compared with the χ (3) of spin-coated thin films prepared in an ambient atmosphere. Fabricating the thin films in an O 2 - and water-free environment is essential for obtaining large χ (3) values. Under these conditions, we determined the maximum value of the imaginary part of χ (3) for P3HT to be 2.2 ×10 -9 esu.

収録刊行物

• Japanese Journal of Applied Physics

  Japanese Journal of Applied Physics 50 (7R), 072601-, 2011-07-01

  IOP Publishing

キーワード

• General Physics and Astronomy
• General Engineering

詳細情報

• CRID: 1360847871786480896
• NII論文ID: 210000070839
• DOI: 10.1143/jjap.50.072601
• ISSN: 13474065
• ISSN: 00214922
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.50.072601
• Web Site: https://iopscience.iop.org/article/10.1143/JJAP.50.072601/pdf
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