A Comprehensive Conduction Regime in Organic Light Emitting Diodes

Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

ICEE20_033

تاریخ نمایه سازی: 14 مرداد 1391

Abstract:

A comprehensive model is proposed for calculating I-V characteristic in single layer single carrier organic light emitting diodes (OLEDs). Unlike previous works, the modeldoesn’t have any pre-assumption regarding the conduction regimes of Injection Limited Current (ILC) and Space Charge Limited Current (SCLC). For the first time, a quantitativeindex for the conduction regime is introduced which is included all the important factors regarding the conductionregime, such as bias voltage, barrier height, carrier mobility, device length, and temperature. Furthermore, the Index value versus barrier height and carrier mobility is examined indetail. Subsequently, it is demonstrated that the results agree extremely well with experimental data in a much wider rangeof bias than any before reported models

Keywords:

Organic Light Emitting Diodes , Space Charge Limited Current , Injection Limited Current , Mott-Gurney , Injection Transport mechanism

Authors

Farzad Ahmadi Gooraji

Department of computer and electrical engineering, Shahid Beheshti University

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