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https://locus.ufv.br//handle/123456789/18789
Tipo: | Artigo |
Título: | Study of optical properties of electropolymerized melanin films by photopyroelectric spectroscopy |
Autor(es): | Albuquerque, José Eduardo de Giacomantonio, Clare White, Andrew G. Meredith, Paul |
Abstract: | Photopyroelectric (PPE) spectroscopy, in the 350–1,075 nm wavelength range, was used to study the optical properties of electropolymerized melanin films on indium tin oxide (ITO) coated glass. The PPE intensity signal as a function of the wavelength λ, V n(λ) and its phase F n(λ) were independently measured. Using the PPE signal intensity and the thermal and optical properties of the pyroelectric detector, we were able to calculate the optical absorption coefficient β of melanin in the solid-state. We believe this to be the first such measurement of its kind on this material. Additionally, we found an optical gap in these melanin films at 1.70 eV. |
Palavras-chave: | Melanin Photopyroelectric spectroscopy Optical properties |
Editor: | European Biophysics Journal |
Tipo de Acesso: | EBSA |
URI: | https://doi.org/10.1007/s00249-005-0020-z http://www.locus.ufv.br/handle/123456789/18789 |
Data do documento: | 12-Nov-2005 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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artigo.pdf Until 2100-12-31 | Texto completo | 341,63 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
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