Fabrication and properties of inverse opal photonic crystal films of La-doped bismuth titanate

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• 作者：Jong Kuk Kim ; Chun Mao ; Jinheung Kim
• 关键词：Pyrroloiminoquinone derivatives ; Antiproliferative activity ; Topoisomerase II ; DNA fragmentation
• 刊名：Journal of Physics and Chemistry of Solids
• 出版年：2008
• 出版时间：May-June 2008
• 年：2008
• 卷：69
• 期：5-6
• 页码：1468-1470
• 全文大小：472 K

文摘

Colloidal crystal-templating methods have been used to prepare inverse opal photonic crystal films of La-doped bismuth titanate, Bi_3.25La_0.75Ti₃O₁₂ (BLT). Ordered arrays of uniformly sized polymer spheres were deposited on glass substrates by a unidirectional deposition method. By carefully controlling the synthetic procedures, macroporous films exhibiting photonic crystal properties were obtained. Bragg diffractions from the planes produced photonic stop bands in the visible spectra of these films.