Obtenção de filmes finos de TiO2 nanoestruturado pelo método dos precursores poliméricos


Autoria(s): Stroppa, Daniel Grando; Giraldi, Tania Regina; Leite, Edson Roberto; Varela, José Arana; Longo, Elson
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/01/2008

Resumo

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

This work focuses in optimizing setup for obtaining TiO2 thin films by polymeric precursor route due to its advantages on stoichiometric and morphological control. Precursor stoichiometry, synthesis pH, solids concentration and rotation speed at deposition were optimized evaluating thin films morphology and thickness. Thermogravimetry and RMN were applied for precursor's characterization and AFM, XRD and ellipsometry for thin films evaluation. Results showed successful attainment of homogeneous nanocrystalline anatase TiO2 thin films with outstanding control over morphological characteristics, mean grain size of 17 nm, packing densities between 57 and 75%, estimated surface areas of 90 m²/g and monolayers thickness within 20 and 128 nm.

Formato

1706-1709

Identificador

http://dx.doi.org/10.1590/S0100-40422008000700020

Química Nova. Sociedade Brasileira de Química, v. 31, n. 7, p. 1706-1709, 2008.

0100-4042

http://hdl.handle.net/11449/25478

10.1590/S0100-40422008000700020

S0100-40422008000700020

WOS:000262432800020

S0100-40422008000700020.pdf

Idioma(s)

por

Publicador

Sociedade Brasileira de Química

Relação

Química Nova

Direitos

openAccess

Palavras-Chave #titanium dioxide #thin films #polymeric precursor
Tipo

info:eu-repo/semantics/article