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Journal article

Pentacene homojunctions: Electron and hole transport properties and related photovoltaic responses

Abstract:
We report on organic p-i-n homojunctions composed of differently doped vacuum-deposited pentacene layers. We observe a remarkably high built-in voltage of 1.65 V. An analysis of the current-voltage characteristics under dark and illuminated conditions reveals that the open-circuit voltage is directly related to the built-in voltage and that the recombination process is influenced by the distinct charge transport properties of electrons and holes in the pentacene film. By a comparison with p-i-p and n-i-n single-carrier homojunctions, deep trap states located around 0.63 eV below the electron transport level are shown to influence the properties. © 2008 The American Physical Society.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1103/PhysRevB.77.195212

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author


Publisher:
American Physical Society
Journal:
Physical Review B - Condensed Matter and Materials Physics More from this journal
Volume:
77
Issue:
19
Publication date:
2008-05-28
DOI:
EISSN:
1550-235X
ISSN:
1098-0121


Language:
English
Pubs id:
pubs:405427
UUID:
uuid:a3b69425-62da-42c4-aaa3-ecc92583073c
Local pid:
pubs:405427
Source identifiers:
405427
Deposit date:
2013-09-26

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