کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1443124 988142 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Space charge limited current–voltage characteristics of organic semiconductor diode fabricated at various gravity conditions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Space charge limited current–voltage characteristics of organic semiconductor diode fabricated at various gravity conditions
چکیده انگلیسی

In this paper, temperature-dependent current–voltage (I–V) characteristics of poly-N-epoxipropyl carbazole (PEPC) are evaluated. The PEPC is doped with anthracene (An) and deposited on nickel (Ni) substrate with a centrifugal machine. The films are grown at room temperature but at varying gravity conditions, such as 1g, 123g, 277g and 1107g, where g is acceleration due to gravity. It is demonstrated that the space charge created by the trapped charges controls the device's characteristics. Thus, by employing trapped space charge limited current model, charge transport parameters are estimated and discussed as a function of ambient temperatures. It is learned that the trap factor, free carrier density, effective mobility and trap density are quasi-linear functions of temperatures. It is shown that devices fabricated at 277g exhibit superior electrical properties compared to 1g, 123g and 1107g devices. It has been demonstrated that an organic semiconductor device performance could be enhanced by optimizing its fabrication parameters.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 159, Issue 13, July 2009, Pages 1336–1339
نویسندگان
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