Epitaxial Growth of an Organic p-n Heterojunction: C60 on Single-Crystal Pentacene.
ACS Appl Mater Interfaces
; 8(21): 13499-505, 2016 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-27171402
ABSTRACT
Designing molecular p-n heterojunction structures, i.e., electron donor-acceptor contacts, is one of the central challenges for further development of organic electronic devices. In the present study, a well-defined p-n heterojunction of two representative molecular semiconductors, pentacene and C60, formed on the single-crystal surface of pentacene is precisely investigated in terms of its growth behavior and crystallographic structure. C60 assembles into a (111)-oriented face-centered-cubic crystal structure with a specific epitaxial orientation on the (001) surface of the pentacene single crystal. The present experimental findings provide molecular scale insights into the formation mechanisms of the organic p-n heterojunction through an accurate structural analysis of the single-crystalline molecular contact.
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MEDLINE
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En
Ano de publicação:
2016
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Article