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Determination of the Density of States on N-type Ptcdi-c13 Organic Thin-film Semiconductor

Published online by Cambridge University Press:  09 January 2013

J. Puigdollers ,
A. Marsal ,
S. Galindo ,
P. Carreras ,
C. Voz ,
J. Bertomeu  and
R. Alcubilla
J. Puigdollers
Affiliation:
Dept Enginyeria Electrònica, Univ. Politècnica Catalunya, Jordi Girona 1-3, Barcelona-08034, SPAIN Center of Research in Nanoengineering, Univ. Politècnica Catalunya, Barcelona-08028, SPAIN
A. Marsal
Affiliation:
Dept Enginyeria Electrònica, Univ. Politècnica Catalunya, Jordi Girona 1-3, Barcelona-08034, SPAIN
S. Galindo
Affiliation:
Dept Enginyeria Electrònica, Univ. Politècnica Catalunya, Jordi Girona 1-3, Barcelona-08034, SPAIN
P. Carreras
Affiliation:
Dept Física Aplicada I Òptica, Univ. Barcelona, Avda Diagonal 647, Barcelona-08028SPAIN
C. Voz
Affiliation:
Dept Enginyeria Electrònica, Univ. Politècnica Catalunya, Jordi Girona 1-3, Barcelona-08034, SPAIN
J. Bertomeu
Affiliation:
Dept Física Aplicada I Òptica, Univ. Barcelona, Avda Diagonal 647, Barcelona-08028SPAIN
R. Alcubilla
Affiliation:
Dept Enginyeria Electrònica, Univ. Politècnica Catalunya, Jordi Girona 1-3, Barcelona-08034, SPAIN Center of Research in Nanoengineering, Univ. Politècnica Catalunya, Barcelona-08028, SPAIN
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Abstract

In this paper we study the density of states in n-type N,N’-ditridecylperylene-3,4,9,10-tetracarboxylic diimide organic semiconductor using two different methods. The first one is based on the temperature dependence of the channel conductance in field-effect transistors. The second one is based on the subgap optical absorption coefficient measured using the Photothermal Deflection Spectroscopy technique. Both techniques allow estimating the distribution of localized states in the band gap of the semiconductor.

Keywords

organicdefectsthin film
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1435: Symposium J – Organic and Hybrid-Organic Electronics , 2012 , mrss12-1435-j06-47
Copyright
Copyright © Materials Research Society 2012

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References

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