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Fermi level shift and doping efficiency in p-doped small molecule organic semiconductors: A photoelectron spectroscopy and theoretical study

Abstract:

We study the mechanism of molecular doping of the organic small molecule N,N,N′,N′-tetrakis(4-methoxyphenyl)-benzidine (MeO-TPD) doped with the fluorinated fullerene C60F36 or the acceptor molecule 2,2′-(perfluoronaphthalene-2,6-diylidene) dimalononitrile (F6-TCNNQ). Varying the doping concentration, photoemission spectroscopy measurements show a comparable Fermi level shift for both dopants. The doping efficiency, defined as the ratio of free charge carriers (holes) to ...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevB.86.035320

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
More from this funder
Name:
EU-FP7
Grant:
267995
More from this funder
Name:
Bundesministerium für Bildung und Forschung
Grant:
13N9720
Publisher:
American Physical Society
Journal:
Physical Review B - Condensed Matter and Materials Physics More from this journal
Volume:
86
Issue:
3
Article number:
035320
Publication date:
2012-07-20
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
Language:
English
Pubs id:
pubs:405344
UUID:
uuid:62234c78-02da-4a05-81f6-258a978693d9
Local pid:
pubs:405344
Source identifiers:
405344
Deposit date:
2013-09-26

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