Ultralow-Bulk-Density Transparent Boehmite Nanofiber Cryogel Monoliths and Their Optical Properties for a Volumetric Three-Dimensional Display
Ultralow-Bulk-Density Transparent Boehmite Nanofiber Cryogel Monoliths and Their Optical Properties for a Volumetric Three-Dimensional Display
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DOI：
10.1021/acsanm.7b00097
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发表时间：
2018-01-01
影响因子：
5.9
通讯作者：
Kumagai, Kota
中科院分区：
文献类型：
--
作者：
Hayase, Gen;Funatomi, Takuya;Kumagai, Kota
超低体积密度透明多孔整体具有独特的光学性质，如低折射率，通常可以通过超临界干燥获得，以防止微结构的变形和坍塌。我们通过真空冷冻干燥由薄水铝石纳米纤维组成的整体湿凝胶，成功地制备了堆积密度为3.5 mg cm(-3)的透明冷冻胶。在向起始溶胶中添加功能材料的情况下，可以获得复合材料。将含有荧光分子的复合冷冻胶应用于体积三维显示。
Ultralow-bulk-density transparent porous monoliths have unique optical properties, such as low refractive index, and usually can be obtained via supercritical drying to prevent deformation and collapse of the microstructure. We succeeded in fabricating a transparent cryogel with a bulk density of 3.5 mg cm(-3) via vacuum freeze-drying of a monolithic wet gel composed of boehmite nanofibers. In the case of the addition of a functional material into the starting sol, a composite material can be obtained. The composite cryogel with a fluorescent molecule was applied to a volumetric threedimensional display.