Title :
Light-response Characteristics of Organic Thin Film Transistors based on Triisopropylsilyl Pentacene
Author :
Kim, Yong-Hoon ; Park, Sung-Kyu ; Park, Sang-Geun ; Han, Min-Koo ; Han, Jeong-In
Author_Institution :
Inf. Display Res. Center, Seoul Nat. Univ., Seoul
Abstract :
The light-response characteristics of organic thin film transistors (OTFTs) based on solution-processed triisopropylsilyl (TIPS) pentacene is analysed. X-ray diffraction measurement confirmed that the ultraviolet (UV) ray destroys the TIP pentacene crystalline structure and under a steady-state light illumination, OTFT showed a high current modulation, which suggests that OTFT based on TIP pentacene is a promising candidate for a low cost and high performance photo-sensing element for digital applications. Furthermore, results suggest that a proper UV-protective passivation layer must be integrated to enhance the reliability of the organic transistor.
Keywords :
X-ray diffraction; crystal structure; organic semiconductors; thin film transistors; ultraviolet radiation effects; UV-protective passivation layer; X-ray diffraction; crystalline structure; current modulation; digital applications; light-response property; organic thin film transistors; pentacene; photo-sensing element; solution-processed TIPS; triisopropylsilyl; ultraviolet ray; Crystallization; Current measurement; Digital modulation; Lighting; Optical modulation; Organic thin film transistors; Pentacene; Steady-state; Thin film transistors; X-ray diffraction;
Conference_Titel :
Device Research Conference, 2008
Conference_Location :
Santa Barbara, CA
Print_ISBN :
978-1-4244-1942-5
Electronic_ISBN :
1548-3770
DOI :
10.1109/DRC.2008.4800776
