| 초록 |
Organic thin-film transistors (OTFTs) have been demonstrated as promising candidates for flexible displays, smart cards (badges), and gas sensors, etc. Most of researches have been focused on improvement of device performance and now the mobility of OTFT is approaching the almost same value as that of amorphous silicon thin-film transistor (TFT) or even higher. However for real array device such as active matrix display, the passivation of OTFT is essential process, especially by solution processable materials for all organic devices. Most frequently used organic material for OTFT passivation is polyvinyl alcohol (PVA) in water to be safe to organic semiconductor layer by the effect of large difference of surface energy. In our works, we have tried the modification of PVA passivation layer by nanocomposite approach with synthetic smectite clays to improve the barrier property of PVA layer to oxygen and moisture. |
