| Autor: |
Inoue, Youji, Tokito, Shizuo, Ito, Kaname, Suzuki, Toshiyasu |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 5/15/2004, Vol. 95 Issue 10, p5795-5799, 5p, 2 Diagrams, 7 Graphs |
| Abstrakt: |
Organic thin-film transistors (OTFTs)— with an active layer based on the organic semiconducting anthracene oligomers, 2,2'-bianthracene (2A), 2,6-trianthracene (3A), and their dihexyl derivatives (DH-2A and DH-3A)— were fabricated. It was found that thin films of anthracene oligomers deposited by thermal evaporation had lamellar structures with a high degree of molecular ordering. Consequently, the OTFTs based on anthracene oligomers showed high field-effect mobilities. The mobility of the OTFTs was increased by the oligomerization and the substitution of alkyl groups. DH-2A on a SiO 2/Si substrate showed the highest mobility of 0.13 cm²/V s. It was also found that the electrical characteristics of the OTFTs were improved by using a Ta 2 O 5 gate insulator. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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