Enhanced charge-carrier injection caused by molecular orientation

Toshinori Matsusima, Hideyuki Murata

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Current densities of hole-only devices based on alpha-sexithiophene (α-6T) and N- N′ -diphenyl- N- N′ -bis(1-naphthyl)- 1, 1′ -biphenyl- 4, 4′ -diamine (α-NPD) increase 42 times at 1 V by rubbing α-6T with a Nylon cloth. Results of absorption spectroscopy with normal and oblique light incidence reveal that the rubbing induces a change from standing to lying orientations of α-6T in a film surface region. The increased current densities are attributed to enhanced α-6T -to- α-NPD hole injection due to the lying orientation.

Original languageEnglish
Article number253307
JournalApplied Physics Letters
Volume98
Issue number25
DOIs
Publication statusPublished - Jun 20 2011
Externally publishedYes

Fingerprint

carrier injection
charge carriers
current density
Nylon (trademark)
diamines
absorption spectroscopy
incidence
injection

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Enhanced charge-carrier injection caused by molecular orientation. / Matsusima, Toshinori; Murata, Hideyuki.

In: Applied Physics Letters, Vol. 98, No. 25, 253307, 20.06.2011.

Research output: Contribution to journalArticle

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