AVS 58th Annual International Symposium and Exhibition
    Transparent Conductors and Printable Electronics Focus Topic Thursday Sessions
       Session TC-ThP

Paper TC-ThP3
Study on Multiple Stacked 6,13-bis(triisopropylsilylethynyl) (TIPS) Pentacene for Improved Organic Thin Film Transistor

Thursday, November 3, 2011, 6:00 pm, Room East Exhibit Hall

Session: Transparent Conductors and Printable Electronics Poster Session
Presenter: Sanguk Lee, Sungkyunkwan Univ. & Samsung Mobile Display, Republic of Korea
Authors: S. Lee, Sungkyunkwan Univ. & Samsung Mobile Display, Republic of Korea
J.J. Han, Sungkyunkwan Univ., Republic of Korea
K. Kim, Sungkyunkwan Univ., Republic of Korea
I.J. Bae, Sungkyunkwan Univ., Republic of Korea
I. Chung, Sungkyunkwan Univ., Republic of Korea
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We found that the crystallization of TIPS pentacene thin film plays an important role in determining the electrical property of organic thin film transistor (OTFT). Ink jetted TIPS pentacene film reveals 2 different types of grains namely due to the coffee strain effect. The better electrical properties were obtained from the OTFTs with bigger grains that had been possible due to the multiple stacked TIPS pentacene layer. Poly-4-vinylphenol (PVP) was used as a gate insulator, and Au electrode was evaporated using a shadow mask. The channel lengths of OTFTs with the bottom gate structure were 20-50 um. The physical properties of the TIPS pentacene films were analyzed using optical microscope (OM), x-ray diffraction (XRD) and secondary electron microscopy (SEM). The electric characteristics of OTFT were obtained using Keithley- 4200.