کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1672151 1008929 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Control of threshold voltage of organic field-effect transistors by space charge polarization
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Control of threshold voltage of organic field-effect transistors by space charge polarization
چکیده انگلیسی

We demonstrate organic field-effect transistors (OFETs) with an ion-dispersed polymer for the gate dielectrics. By applying external electric field (Vex), the dispersed ions can migrate by electrophoresis and separated ion pairs form space charge polarization in the gate dielectrics. After Vex was applied, the drain current is increased over 7 times and threshold voltage is decreased from − 12.9 V to − 2.9 V. The shift direction of Vth is controllable by the polarity of the Vex. Results of ultraviolet/visible differential absorption study reveal that the active layer of OFETs is charged not only electrostatically but electrochemically with increasing the time after Vex was applied.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 518, Issue 2, 30 November 2009, Pages 510–513
نویسندگان
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