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Naslov:The role of local potential minima on charge transport in thin organic semiconductor layers
Avtorji:ID Pavlica, Egon, Univerza v Novi Gorici (Avtor)
ID Penumala, Raveendra Babu, Univerza v Novi Gorici (Avtor)
ID Bratina, Gvido, Univerza v Novi Gorici (Avtor)
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:We have performed a systematic study of dependence of time-resolved photocurrent on the point of charge excitation within the organic semiconductor channel formed by two coplanar metal electrodes. The results confirm that spatial variation of electric field between the electrodes crucially determines transport of photogenerated charge carriers through the organic layer. Time-of-flight measurements of photocurrent demonstrate that the transit time of photogenerated charge carrier packets drifting between the two electrodes decreases with increasing travelling distance. Such counterintuitive result cannot be reconciled with the spatial distribution of electric field between coplanar electrodes, alone. It is also in contrast to expected role of space-charge screening of external electric field. Supported by Monte Carlo simulations of hopping transport in disordered organic semiconductor layer, we submit that the space-charge screens the external electric field and captures slower charge carriers from the photogenerated charge carrier packet. The remaining faster carriers, exhibit velocity distribution with significantly higher mean value and shorter transit time.
Ključne besede:Charge transport, Organic semiconductors, Time of flight, Mobility, Traps
Verzija publikacije:Recenzirani rokopis
Leto izida:2016
Št. strani:32
Številčenje:2016
PID:20.500.12556/RUNG-2865-9fd4f3bf-2d3c-e79f-a417-c55d94f24f26 Novo okno
COBISS.SI-ID:4619003 Novo okno
DOI:10.1016/j.orgel.2016.12.038 Novo okno
NUK URN:URN:SI:UNG:REP:FOUDSCTB
Datum objave v RUNG:23.12.2016
Število ogledov:6856
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
PAVLICA, Egon, PENUMALA, Raveendra Babu in BRATINA, Gvido, 2016, The role of local potential minima on charge transport in thin organic semiconductor layers. Organic Electronics [na spletu]. 2016. Vol. 2016. [Dostopano 22 april 2025]. DOI 10.1016/j.orgel.2016.12.038. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=2865
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Gradivo je del revije

Naslov:Organic Electronics
Leto izida:2016

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:23.12.2016

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