Synthesis and characterization of spherical and narrow size distribution indium oxide nanoparticles

Autor(es)

Souza, C. C. ^[1] ; Rey, J. F. Q. ^{[2, 1]} ; Muccillo, E. N. S. ^[1]

Afiliação do(s) autor(es)

^[1] IPEN CNEN SP, Multidisciplinary Ctr Dev Ceram Mat, CCTM, BR-05508000 Sao Paulo - Brazil

^[2] Fed Univ ABC, BR-09210170 Santo Andre, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Applied Surface Science; v. 255, n. 6, p. 3779-3783, JAN 1 2009.
• Citações Web of Science: 42

Resumo

This work reports the synthesis of indium oxide nanoparticles and their thermal, structural, microstructural and optical characterization. The preparation method is based on a surfactant-free room temperature soft chemistry route. Spherical indium oxide nanoparticles (about 8 nm in diameter) were obtained after thermal treatment of gels at 400 degrees C for 2 h, as shown by X-ray diffraction experiments and nitrogen adsorption measurements. Transmission electron microscopy observations confirm the single-crystalline nature of the produced nanoparticles. The photoluminescence emission spectrum at room temperature shows a broad peak with onset at approximately 315 nm as a result of quantum size effect as revealed by small-angle X-ray scattering. (c) 2008 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 04/00364-3 - Relação microestrutura-propriedade em cerâmicas condutoras preparadas a partir de nanopartículas
• Beneficiário: Eduardo Caetano Camilo de Souza
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto