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以自然界中多种多样、复杂精细的生物结构为模板,即通过生物模板法,可制备出具有类似结构的人工材料以提高材料性能或探索材料新的性质。本研究以具有精细二维光子晶体结构的绿斑德凤蝶(Papilio epiphorbas)鳞片为模板,采用以水溶胶凝胶为前驱体的生物模板法成功制备出具有精细二维光子晶体结构的Y2O3:Eu3+荧光体。场发射扫描电镜对仿生Y2O3:Eu3+进行了结构表征,证明仿生Y2O3:Eu3+可以完好地复制蝴蝶鳞片的二维光子晶体结构;采用激光共聚焦显微拉曼光谱仪对仿生Y2O3:Eu3+进行了光致发光测试,证明Eu3+充分掺杂使荧光体产生了特征荧光。通过水溶胶前驱体工艺和水溶液前驱体工艺的对比研究,证明了以水溶胶为前驱体的生物模板法在制备精细结构材料上的优势,对精细结构材料的生物模板法制备具有重要参考价值。
To a variety of nature, complex and sophisticated biological structure as a template, that is, through the biological template method can be prepared with similar structure of artificial materials to improve material properties or to explore new properties of the material. In this study, a fine two-dimensional photonic crystal structure of Papilio epiphorbas scales as a template, the use of hydrogel as a precursor biomimetic method successfully prepared with a fine two-dimensional photonic crystal structure Y2O3: Eu3 + phosphor. The structure of bionic Y2O3: Eu3 + was characterized by field emission scanning electron microscopy. It was proved that the bionic Y2O3: Eu3 + could reproduce the two-dimensional photonic crystal structure of butterflies. The laser induced confocal Y2O3: Eu3 + Luminescence test shows that the Eu3 + doped to make the fluorescent features of the fluorescence. The comparison between the aqueous sol precursor process and the aqueous precursor process proves that the biomimetic method using the hydrosol as the precursor has the advantage in the preparation of the fine structure material and has an important reference value for the biological template preparation of the fine structure material.