| 초록 |
Pentacene derivatives linked with aromatic groups at the 6,13-positions have been synthesized and characterized for their photooxidation properties. They exhibit high solubility which provides low-cost solution deposition methods. However, most of them are highly susceptible to photooxidation in solution determined with a few minutes of their half-life time under ambient conditions, practically precluding them from solution fabrication applications. Interestingly, their photooxidation stability can be significantly increased by blocking out light. The thin film transistor device for 3,4,5-trifluorophenyl-substituted pentacene showed the highest mobility of 1.1*10-2 cm2/Vs with the threshold voltage of 20 V when it was prepared in the dark condition. |
