Azobenzene Molecular Effects on Solution-Processed Y-In-Zn-O Thin-Film Transistors Treated with Light

초록

A solution-processed yttrium indium zinc oxide (YIZO) channel layer was mixed with azobenzene to generate oxide thin-film transistors (TFTs). Because azobenzene has two different molecular structures, cis- and trans-azobenzene YIZO TFTs were compared. In an electrical analysis, it was found that the structural differences affect the electrical properties. The trans-azobenzene YIZO (TA-YIZO) TFTs produced greater channel densities and lower trap densities than the cis-azobenzene YIZO (CA-YIZO) TFTs. The TA-YIZO exhibited superior characteristics with a mobility of 0.44 cm(2)/V.s, a threshold voltage (V-TH) of 5.01 V, a sub-threshold swing of 0.74 V/decade, and an on/off ratio greater than 10(6). (C) 2014 The Electrochemical Society. All rights reserved.

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