Diffusion of charge carriers in pentacene

Diffusion of charge carriers in pentacene

The diffusion coefficient (D) of charge carriers in pentacene has been determined independently using current–voltage and capacitance–frequency characteristics of asymmetric metal/pentacene/metal structures. The values of D measured using these two methods are found to be in excellent agreement. D h...

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Veröffentlicht in:Applied physics letters 2021-02, Vol.118 (8)
Hauptverfasser: Rani, Varsha, Sharma, Akanksha, Chaudhuri, Sumita Ray, Ghosh, Subhasis
Format: Artikel
Sprache:eng
Schlagworte:
Applied physics
Current carriers
Diffusion coefficient
First principles
Organic semiconductors
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Zusammenfassung:The diffusion coefficient (D) of charge carriers in pentacene has been determined independently using current–voltage and capacitance–frequency characteristics of asymmetric metal/pentacene/metal structures. The values of D measured using these two methods are found to be in excellent agreement. D has been estimated using first principles calculations and compared with experimental values. The applicability of the Einstein relation has been examined in organic semiconductors.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0026739