Current Voltage Characteristics and Excess Noise at the Trap Filling Transition in Polyacenes
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چکیده
منابع مشابه
Transport and excess noise in polyacenes under trap filling transition
Recent measurements in organic semiconductors (polyacenes) have evidenced a strong superlinear increase of the current-voltage characteristics associated with a sharp peak of the relative spectral density of current noise. Both features occur at the trap filling transition (TFT), i.e. at voltages corresponding to the transition between the Ohmic regime and the space charge limited current (SCLC...
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Low-frequency current fluctuations are investigated over a bias range covering Ohmic, trap-filling, and space-charge-limited current regimes in polycrystalline polyacenes. The relative current noise power spectral density S(f) is constant in the Ohmic region, steeply increases at the trap-filling transition region, and decreases in the space-charge-limited-current region. The noise peak at the ...
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ژورنال
عنوان ژورنال: Fluctuation and Noise Letters
سال: 2018
ISSN: 0219-4775,1793-6780
DOI: 10.1142/s0219477518500141