Biological photonic crystals: diatoms for the control of absorption and emission of light

本项目旨在利用生物源光子晶体控制光的吸附和发射。以硅藻（Coscinodicus granii）为典型，硅藻硅细胞壁呈非常规则的六边形孔结构。细胞壁的化学结构允许共价连接实现到硅微技术和作为光学活性成分的功能性有机染料的附着。在该项目中，研究了硅藻细胞结构中的光路以及光吸附和发光的局部效率。将探讨通过细胞培养获得确定特征大小的可能性。

The project aims at the application of photonic crystals of biological origin for controlling the adsorption and emission of light. As prototypical example, the diatom Coscinodicus granii is chosen, the silicea cell wall of which exhibits a very regular hexagonal pore structure. The chemical structure of the cell wall allows covalent junctions for implementation into silicon microtechnology and the attachment of functional organic dyes as optically active components. In the project, the light path within a diatom cell structure and the local efficiency of light adsorption and emitting is investigated. The possibility of obtaining determined feature sizes by means of cell culivation will be explored.