Fabrication and surface photovoltage study of hematite microparticles with hollow spindle-shaped structure
Hematite (a-Fe 2O 3) particles with hollow spindle-shaped microstructure were successfully synthesized by a one-pot hydrothermal approach in large scale. The structural properties of the sample were systematically investigated by X-ray powder diffraction, scanning electron microscopy, energy-dispers...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/10834 |
| _version_ | 1848747642493861888 |
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| author | Li, H. Zhao, Q. Li, Xin Yong Shi, Y. Chen, G. |
| author_facet | Li, H. Zhao, Q. Li, Xin Yong Shi, Y. Chen, G. |
| author_sort | Li, H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Hematite (a-Fe 2O 3) particles with hollow spindle-shaped microstructure were successfully synthesized by a one-pot hydrothermal approach in large scale. The structural properties of the sample were systematically investigated by X-ray powder diffraction, scanning electron microscopy, energy-dispersive X-ray spectrum, high resolution transmission electron microscopy, selected-area electron diffraction techniques, UV-vis diffuse reflectance spectroscopy and infrared spectroscopy techniques. The characterization results revealed that the a-Fe 2O 3 microparticles with a single-domain crystalline structure was mainly grown along the (1 0 4) crystal plane. The valence states and the surface chemical compositions of a-Fe 2O 3 were further identified by X-ray photoelectron spectroscopy. The feature of photo-induced charge separation on spectrum was demonstrated by the surface photovoltage measurement under different external biases. The observed photoelectric characteristics of the as-fabricated material are beneficial for various optical and electronic applications. © 2012 Elsevier B.V. |
| first_indexed | 2025-11-14T06:52:24Z |
| format | Journal Article |
| id | curtin-20.500.11937-10834 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:52:24Z |
| publishDate | 2012 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-108342017-09-13T14:53:52Z Fabrication and surface photovoltage study of hematite microparticles with hollow spindle-shaped structure Li, H. Zhao, Q. Li, Xin Yong Shi, Y. Chen, G. Hematite (a-Fe 2O 3) particles with hollow spindle-shaped microstructure were successfully synthesized by a one-pot hydrothermal approach in large scale. The structural properties of the sample were systematically investigated by X-ray powder diffraction, scanning electron microscopy, energy-dispersive X-ray spectrum, high resolution transmission electron microscopy, selected-area electron diffraction techniques, UV-vis diffuse reflectance spectroscopy and infrared spectroscopy techniques. The characterization results revealed that the a-Fe 2O 3 microparticles with a single-domain crystalline structure was mainly grown along the (1 0 4) crystal plane. The valence states and the surface chemical compositions of a-Fe 2O 3 were further identified by X-ray photoelectron spectroscopy. The feature of photo-induced charge separation on spectrum was demonstrated by the surface photovoltage measurement under different external biases. The observed photoelectric characteristics of the as-fabricated material are beneficial for various optical and electronic applications. © 2012 Elsevier B.V. 2012 Journal Article http://hdl.handle.net/20.500.11937/10834 10.1016/j.apsusc.2012.04.006 restricted |
| spellingShingle | Li, H. Zhao, Q. Li, Xin Yong Shi, Y. Chen, G. Fabrication and surface photovoltage study of hematite microparticles with hollow spindle-shaped structure |
| title | Fabrication and surface photovoltage study of hematite microparticles with hollow spindle-shaped structure |
| title_full | Fabrication and surface photovoltage study of hematite microparticles with hollow spindle-shaped structure |
| title_fullStr | Fabrication and surface photovoltage study of hematite microparticles with hollow spindle-shaped structure |
| title_full_unstemmed | Fabrication and surface photovoltage study of hematite microparticles with hollow spindle-shaped structure |
| title_short | Fabrication and surface photovoltage study of hematite microparticles with hollow spindle-shaped structure |
| title_sort | fabrication and surface photovoltage study of hematite microparticles with hollow spindle-shaped structure |
| url | http://hdl.handle.net/20.500.11937/10834 |