Inside Front Cover
Inside Front Cover: High-Performance and Stable Organic Thin-Film Transistors Based on Fused Thiophenes (Adv. Funct. Mater. 3/2006)
Article first published online: 27 JAN 2006
Copyright © 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Functional Materials
Volume 16, Issue 3, February, 2006
How to Cite
Sun, Y. M., Ma, Y. Q., Liu, Y. Q., Lin, Y. Y., Wang, Z. Y., Wang, Y., Di, C. A., Xiao, K., Chen, X. M., Qiu, W. F., Zhang, B., Yu, G., Hu, W. P. and Zhu, D. B. (2006), Inside Front Cover: High-Performance and Stable Organic Thin-Film Transistors Based on Fused Thiophenes (Adv. Funct. Mater. 3/2006). Adv. Funct. Mater., 16: n/a. doi: 10.1002/adfm.200690011
- Issue published online: 27 JAN 2006
- Article first published online: 27 JAN 2006
- Cited By
- Field-effect transistors, organic;
- Thin-film transistors, organic
A series of new organic semiconductors for organic thin-film transistors using dithieno[3,2-b:2′,3′-d]thiophene as the core have been synthesized. In work reported by Liu, Zhu, and co-workers on p. 426, the phenyl-substituted compound exhibited a high mobility of 0.42 cm2 V–1 s–1 and an on/off ratio of 5 × 106. Weekly shelf-life tests of the transistors based on the bis(diphenyl)-substituted thiophene under ambient conditions showed that the mobility was almost unchanged after more than two months, demonstrating potential for applications in future organic electronics.
A series of new organic semiconductors for organic thin-film transistors (OTFTs) using dithieno[3,2-b:2′,3′-d]thiophene as the core are synthesized. Their electronic and optical properties are investigated using scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-vis and photoluminescence spectroscopies, thermal gravimetric analysis (TGA), and differential scanning calorimetry (DSC). The compounds exhibit an excellent field-effect performance with a high mobility of 0.42 cm2 V–1 s–1 and an on/off ratio of 5 × 106. XRD patterns reveal these films, grown by vacuum deposition, to be highly crystalline, and SEM reveals well-interconnected, microcrystalline domains in these films at room temperature. TGA and DSC demonstrate that the phenyl-substituted compounds possess excellent thermal stability. Furthermore, weekly shelf-life tests (under ambient conditions) of the OTFTs based on the phenyl-substituted compounds show that the mobility for the bis(diphenyl)-substituted thiophene was almost unchanged for more than two months, indicating a high environmental stability.