skip to main content
Idioma:
Tipo de recurso Mostra resultados com: Mostra resultados com: Índice

(0 0 l)-oriented Bi 2Sr 2Co 2O y and Ca 3Co 4O 9 films: Self-assembly orientation and growth mechanism by chemical solution deposition

Zhu, Xuebin ; Shi, Dongqi ; Dou, Shixue ; Sun, Yuping ; Li, Qi ; Wang, Lin ; Li, Wenxian ; Yeoh, Weikong ; Zheng, Rongkun ; Chen, Zhixin ; Kong, Chunxiu

Acta materialia, 2010, Vol.58 (12), p.4281-4291 [Periódico revisado por pares]

Elsevier Ltd

Texto completo disponível

Citações Citado por
  • Título:
    (0 0 l)-oriented Bi 2Sr 2Co 2O y and Ca 3Co 4O 9 films: Self-assembly orientation and growth mechanism by chemical solution deposition
  • Autor: Zhu, Xuebin ; Shi, Dongqi ; Dou, Shixue ; Sun, Yuping ; Li, Qi ; Wang, Lin ; Li, Wenxian ; Yeoh, Weikong ; Zheng, Rongkun ; Chen, Zhixin ; Kong, Chunxiu
  • Assuntos: Chemical solution deposition ; Self-assembly ; Thermoelectric
  • É parte de: Acta materialia, 2010, Vol.58 (12), p.4281-4291
  • Descrição: In this study, two typical cobaltate-based thermoelectric films, Bi 2Sr 2Co 2O y (BSC) and Ca 3Co 4O 9 (CCO), with structures of [Bi 2Sr 2O 4][CoO 2] 2 and [Ca 2CoO 3] RS[CoO 2], respectively, are prepared by a simple chemical solution deposition on SrTiO 3 (1 0 0), (1 1 0), and (1 1 1) single crystal substrates. X-ray results reveal that all films are c-axis oriented regardless of the orientation of the substrate, suggesting self-assembly orientation. Transmission electron microscopy reveals amorphous/delamination regions for BSC film on SrTiO 3 (1 1 0), and the c-axis stripes of CCO on SrTiO 3 (1 1 1) are inclined at 30° to the interface, whereas the c-axis stripes are parallel to the interfaces for other films. The growth mechanism is established, and the driving force for self-assembly c-axis orientation is attributed to the syneresis stress due to solvent evaporation. The microstructures and properties are also studied and discussed, with the conclusion that self-assembly c-axis oriented layered cobaltates films are good candidates for thermoelectric applications.
  • Editor: Elsevier Ltd
  • Idioma: Inglês
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  2 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.