Role of transport band edge variation on delocalized charge transport in high-mobility crystalline organic semiconductors

Title data

Kadashchuk, Andrey ; Tong, Fei ; Janneck, Robby ; Fishchuk, Ivan I. ; Mityashin, Alexander ; Pavlica, Egon ; Köhler, Anna ; Heremans, Paul ; Rolin, Cedric ; Bratina, Gvido ; Genoe, Jan:
Role of transport band edge variation on delocalized charge transport in high-mobility crystalline organic semiconductors.
In: Physical Review B. Vol. 96 (2017) Issue 12 . - 125202.
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.96.125202

Official URL:

Abstract in another language

We demonstrate that the degree of charge delocalization has a strong impact on polarization energy and thereby on the position of the transport band edge in organic semiconductors. This gives rise to long-range potential fluctuations, which govern the electronic transport through delocalized states in organic crystalline layers. This concept is employed to formulate an analytic model that explains a negative field dependence coupled with a positive temperature dependence of the charge mobility observed by a lateral time-of-flight technique in a high-mobility crystalline organic layer. This has important implications for the further understanding of the charge transport via delocalized states in organic semiconductors.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Institutions of the University:	Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics II - Optoelectronics of Soft Matter > Chair Experimental Physics II - Optoelectronics of Soft Matter - Univ.-Prof. Dr. Anna Köhler Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Experimental Physics II - Optoelectronics of Soft Matter
Result of work at the UBT:	Yes
DDC Subjects:	500 Science > 530 Physics
Date Deposited:	19 Sep 2017 08:00
Last Modified:	04 Aug 2023 13:22
URI:	https://eref.uni-bayreuth.de/id/eprint/39689