Conduction band electronic states of ultrathin furan-phenylene co-oligomer on the surfaces of oxidized silicon and of layer-by-layer grown zinc oxide

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Abstract

The paper reports on results of an investigation of the electronic states of the conduction band of ultrathin films of furan-phenylene co-oligomer 1,4-bis(5-phenylfuran-2-yl)benzene (FP5) and the results of an investigation of the interfacial potential barrier upon the formation of these films on the surfaces of (SiO2)n-Si and of layer-by-layer deposited ZnO. Upon deposition of an 8–10 nm thick FP5 film, the total current spectroscopy (TCS) technique was used for investigation within the energy range from 5 eV to 20 eV above EF. FP5 films on the (SiO2)n-Si surface showed a domain structure with a characteristic domain size of the order of 1 micro.m × 1 micro.m and a surface roughness within the domain under 1 nm. In contrast, FP5 on the ZnO surface showed a granular structure with a grain height of 40–50 nm.

About the authors

А. S. Komolov

St. Petersburg State University

Author for correspondence.
Email: a.komolov@spbu.ru
Russian Federation, St. Petersburg

I. A. Pronin

Penza State University

Email: a.komolov@spbu.ru
Russian Federation, Penza

Е. F. Lazneva

St. Petersburg State University

Email: a.komolov@spbu.ru
Russian Federation, St. Petersburg

V. S. Sobolev

St. Petersburg State University

Email: a.komolov@spbu.ru
Russian Federation, St. Petersburg

E. A. Dubov

St. Petersburg State University

Email: a.komolov@spbu.ru
Russian Federation, St. Petersburg

A. A. Komolova

St. Petersburg State University

Email: a.komolov@spbu.ru
Russian Federation, St. Petersburg

Е. V. Zhizhin

St. Petersburg State University

Email: a.komolov@spbu.ru
Russian Federation, St. Petersburg

D. A. Pudikov

St. Petersburg State University

Email: a.komolov@spbu.ru
Russian Federation, St. Petersburg

S. A. Pshenichnyuk

Institute of Molecule and Crystal Physics, Ufa Federal Research Centre, Russian Academy of Sciences

Email: a.komolov@spbu.ru
Russian Federation, Ufa

Ch. S. Becker

N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences

Email: a.komolov@spbu.ru
Russian Federation, Novosibirsk

M. S. Kazantsev

N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences

Email: a.komolov@spbu.ru
Russian Federation, Novosibirsk

F. Dj. Akbarova

Physical-Technical Institute, Uzbekistan Academy of Sciences

Email: a.komolov@spbu.ru
Uzbekistan, Tashkent

U. B. Sharopov

Physical-Technical Institute, Uzbekistan Academy of Sciences; Bukhara State University

Email: a.komolov@spbu.ru
Uzbekistan, Tashkent; Bukhara

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