Idioma:

Application of abrupt cut-off models in the analysis of the capacitance spectra of conjugated polymer devices

Reis, F. T. ; Santos, L. F. ; Bianchi, R. F. ; Cunha, H. N. ; Mencaraglia, D. ; Faria, R. M.

Applied physics. A, Materials science & processing, 2009-09, Vol.96 (4), p.909-914 [Periódico revisado por pares]

Berlin/Heidelberg: Springer-Verlag

Texto completo disponível

Citações Citado por

Enviar para

Título:
Application of abrupt cut-off models in the analysis of the capacitance spectra of conjugated polymer devices
Autor: Reis, F. T. ; Santos, L. F. ; Bianchi, R. F. ; Cunha, H. N. ; Mencaraglia, D. ; Faria, R. M.
Assuntos: Capacitance ; Characterization and Evaluation of Materials ; Condensed Matter Physics ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Cut-off ; Devices ; Dielectric breakdown and space-charge effects ; Dielectric properties of solids and liquids ; Dielectrics, piezoelectrics, and ferroelectrics and their properties ; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures ; Electronic transport in interface structures ; Electronics ; Exact sciences and technology ; Fermi surfaces ; Machines ; Manufacturing ; Mathematical models ; Metal-semiconductor-metal structures ; Nanotechnology ; Optical and Electronic Materials ; Physics ; Physics and Astronomy ; Processes ; Semiconductors ; Spectra ; Surfaces and Interfaces ; Thin Films
É parte de: Applied physics. A, Materials science & processing, 2009-09, Vol.96 (4), p.909-914
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: In this paper, a detailed study of the capacitance spectra obtained from Au/doped-polyaniline/Al structures in the frequency domain (0.05 Hz–10 MHz), and at different temperatures (150–340 K) is carried out. The capacitance spectra behavior in semiconductors can be appropriately described by using abrupt cut-off models, since they assume that the electronic gap states that can follow the ac modulation have response times varying rapidly with a certain abscissa, which is dependent on both temperature and frequency. Two models based on the abrupt cut-off concept, formerly developed to describe inorganic semiconductor devices, have been used to analyze the capacitance spectra of devices based on doped polyaniline (PANI), which is a well-known polymeric semiconductor with innumerous potential technological applications. The application of these models allowed the determination of significant parameters, such as Debye length (≈20 nm), position of bulk Fermi level (≈320 meV) and associated density of states (≈2×10 18 eV −1 cm −3 ), width of the space charge region (≈70 nm), built-in potential (≈780 meV), and the gap states’ distribution.
Editor: Berlin/Heidelberg: Springer-Verlag
Idioma: Inglês

Links

View record in Pascal Francis

Voltar para lista de resultados

Resultado 1 Avançar Ir para próxima página

Realização: Logos de Redes Sociais:

Application of abrupt cut-off models in the analysis of the capacitance spectra of conjugated polymer devices

Reis, F. T. ; Santos, L. F. ; Bianchi, R. F. ; Cunha, H. N. ; Mencaraglia, D. ; Faria, R. M.

Berlin/Heidelberg: Springer-Verlag

Buscando em bases de dados remotas. Favor aguardar.