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Determination of the electroaffinity and potential barrier heights at polymer/ metal interfaces of poly(4,7-benzothiophene vinylene) (PBTV)

✍ Scribed by R. Berton; I. A. Hümmelgen; J. Gruber; R. W. C. Li; E. L. de Sá; L. O. Péres

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 118 KB
Volume: 8
Category: Article
ISSN: 1616-301X
DOI: 10.1002/(sici)1099-0712(1998070)8:4<181::aid-amo352>3.0.co;2-s

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✦ Synopsis

In this paper we determine the LUMO level position of poly(4,7-benzothiophene vinylene) (PBTV), a heterocyclic poly(phenylene vinylene) (PPV) analogue, using tunnelling current measurements. We compare the energy level positions with those measured for PPV and determine their shifts. The experimental results are compared with theoretical predictions and good agreement is observed.