Hao LY, You M, Mo X, Jiang WQ, Zhu YR, Zhou Y, Hu YA, Liu XM, Chen ZY (2003) Fabrication and characterization of ordered macroporous semiconductors CdS by colloidal crystal template. Materials Research Bulletin 38(4), 723-729. [In English]

Web link: http://dx.doi.org/10.1016/s0025-5408(02)00980-7

Keywords:

macroporous materials, chemical synthesis, scanning electron, microanalyzer, optical properties, optical wavelengths, photonic crystals, size, membranes, oxides, films,

Abstract: The synthesis and characterization of a highly ordered macroporous US 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 US nanoparticles making the absorption spectrum shift blue. The sample was also characterized by Raman spectroscopy and photo luminescent spectra (PL). (C) 2002 Elsevier Science Ltd. All rights reserved.