کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1673519 1008949 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Equivalent circuits of polymer light-emitting diodes with hole-injection layer studied by impedance spectroscopy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Equivalent circuits of polymer light-emitting diodes with hole-injection layer studied by impedance spectroscopy
چکیده انگلیسی

Impedance spectroscopy (IS) of poly(9,9-dioctylfluorene) (F8) polymer light-emitting diodes (PLEDs) with hole-injection layers has been studied to determine their equivalent circuits. The equivalent circuits of the PLEDs below and above the threshold voltage for electroluminescence (EL) and their physical interpretation are shown. A significant difference in equivalent circuits is observed between below and above the threshold for EL. Above EL threshold, two R–L series branches, which are the origin of the negative capacitance effect, appear in the equivalent circuit.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 517, Issue 4, 31 December 2008, Pages 1327–1330
نویسندگان
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