1. Fabrication and characterization of ordered macroporous semiconductors CdS by colloidal crystal template
- Author
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Hao, Lingyun, You, Min, Mo, Xiao, Jiang, Wanquan, Zhu, Yurui, Zhou, Yong, Hu, Yuan, Liu, Xianming, and Chen, Zuyao
- Subjects
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SEMICONDUCTORS , *COLLOIDAL crystals , *SCANNING electron microscopes , *RAMAN spectroscopy - Abstract
The synthesis and characterization of a highly ordered macroporous CdS with regular arrays of spherical pores comparable to optical wavelengths are discussed. The sample has been successfully fabricated using colloidal crystal of poly (styrene-acrylic) (PSA) spheres as templates. The pore size is tunable in the range of 100–400 nm based on the size of PSA spheres. Transmission electron microscope (TEM) and scanning electron microscope (SEM) show that the exactly three-dimensional structure of the template has been imprinted in the final materials. XRD pattern indicates that the walls of the macroporous material are composed of 4 nm CdS nanoparticles making the absorption spectrum shift blue. The sample was also characterized by Raman spectroscopy and photo luminescent spectra (PL). [Copyright &y& Elsevier]
- Published
- 2003
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