The Realization of Ambipolar Organic Thin-Film Transistors (OTFTs) Based on Small Molecule via Solution Process

• Main Authors: Chen, Li-Ming, 陳立明
• Other Authors: Wu, Meng-Chyi
• Format: Others
• Language: en_US
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/52851429162912981171

碩士 === 國立清華大學 === 電子工程研究所 === 99 === In this thesis, we have investigated the realization of small molecule organic thin-film transistor based on blend of fullerene (C60) and P-BTDT:OP-BTDT via solution process. As far as the electrical characteristic of p- and n-type small molecular materials mixed as semiconductor layer is concerned, these devices show the ambipolar charge carrier transport. With optimized the weight ratio of (P-BTDT:OP-BTDT)/C60, the phase images of active layer employing atomic force microscopy show a fine network and filed-effect mobility for hole and electron are measured as 0.0297 and 0.0243 cm2/Vs, respectively. Such a balanced of hole and electron makes them potential candidates for the organic complementary circuits and inverter circuits of these ambipolar TFTs are also demonstrated.