We present the latest results of the use of soluble materials such as organic semiconductors (OSCs) or gate-dielectrics for simplified processing of organic thin-film transistors (OTFTs). In this paper, we described our fabrication of a solution-processed OTFT with 6,13-bis(Triisopropylsilylethynyl) pentacene (TIPS-pentacene) as the OSC and siloxane-based spin-on glass (SOG) as the inorganic gate-dielectric. Also, synthesized TIPS-pentacene and SOG were examined for use as the OSC and gate-dielectric in an OTFT. From electrical measurements, we obtained device performance characteristics such as charge carrier mobility, threshold voltage, current on/off ratio, and subthreshold swing, which were 6.48 × 10-3 cm2/V · s,-13 V, ∼100, and 1.83 V/dec, respectively.
Bibliographical noteFunding Information:
Manuscript received June 8, 2007; revised October 22, 2007. This work was supported in part by the Industrial-Educational Cooperation Program between Korea University and LG. Philips LCD, in part by the National Research Laboratory under Grant NRL, R0 A-2007-000-20111-0 Program of the Ministry of Science and Technology (Korea Science and Engineering Foundation), and in part by the second stage of the Brain Korea 21 Project in 2007 (Korea Research Foundation). The review of this paper was arranged by Editor J. Kanicki.
- 6,13-bis(Triisopropylsilylethynyl) pentacene (TIPS-pentacene)
- Organic electronics
- Organic thin-film transistor (OTFT)
- Spin-on glass
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering