Publicação: Influence of Synthesis Route on the Radiation Sensing Properties of ZnO Nanostructures
Carregando...
Arquivos
Data
2016-01-01
Autores
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Hindawi Ltd
Tipo
Artigo
Direito de acesso
Acesso aberto

Resumo
ZnO nanostructures were synthesized using two different routes and the light sensor response of structures was studied. The synthesis by carbothermal reduction resulted in ZnO tetrapods while the synthesis by microwave assisted hydrothermal method produced multipoint stars structures. Characterization by scanning and transmission electron microscopy confirmed that both structures consist of one-dimensional crystals with a hexagonal cross section and [001] growth direction. Under a simulated solar radiation spectrum, it was observed that tetrapods display a light sensor response of approximately 5000. For the multipoint stars, amaximum in the sensor signal value of 3400 was achieved, which also represents a substantial variation in the conductivity of the material. A model based on the surface oxygen presence is proposed to explain the observed results.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Journal Of Nanomaterials. London: Hindawi Ltd, 9 p., 2016.