The influences of self-assembled-monolayers (SAMs) modifications on the gold electrodes in organic field effect transistors are studied using benzen-thiols (BzTs) having amino (NH2), nitro (NO2) and methyl (CH3) substituents and pentacene as an organic semiconductor. The field effect transistor (FET) characteristics are found to be very sensitive to the preparation condition of the SAMs modified surfaces. This can be rationalized in terms of the barriers against carrier injections made by SAMs and this situation can be monitored using a surface contact-angle method. The enhancement in the field effect mobilities μ s is observed when the SAMs modifications to the electrodes are applied, and this could be caused by the higher efficiency of carrier injection attained by the hole transfer from SAMs to pentacene molecules.
|ホスト出版物のサブタイトル||Materials, Devices and Applications|
|出版ステータス||Published - 2006 12 1|
|イベント||2006 MRS Fall Meeting - Boston, MA|
継続期間: 2006 11 27 → 2006 12 1
|Other||2006 MRS Fall Meeting|
|Period||06/11/27 → 06/12/1|
ASJC Scopus subject areas