金属基光子晶体的研究进展

Research Progress of the Metal-based Photonic Crystals

以具有独特功能的金属基材料(或其氧化物)及复合材料作为构筑单元制备的金属基光子晶体展现出优良的光学性能及光电转化性能,这对于拓展光子晶体在未来新型能源开发领域的应用前景具有重要意义.综述了金属基光子晶体的制备方法、性能研究及其应用进展,并对金属基光子晶体在未来新型能源开发等方面的应用前景进行了展望.

Metal-based photonic crystals（PCs）, which provide a unique optic-electric properties based on its intrinsic characteristic, is of great significance for the applications in the field of new energy system, such as solar cells, water electrolysis, light emitting diode（LED）, etc. This article reviews the research progress of the metal-based PC, including the fabrication method, property investigation and the relative applications. Metal-based PCs are generally fabricated from the building blocks of metal, metal oxide or their composites materials. The fabrication method refers to the bottom up and top down approach. Bottom up approach covers the self-assembly of the metal nanoparticles directly or infiltrating the nanoparticles into the opal template and the subsequent removal of the template toward the metal-based inverse opals. Top down approach refers to the lithography and deposition. The lithography approach includes laser lithography, reaction ion etching, etc. And the deposition method covers physical vapor deposition, atomic layer deposition, pulsed laser deposition, etc. Furthermore, the metal-based PCs demonstrate many excellent properties based on the combination of the light manipulation property of PCs and the intrinsic property of the metal materials. For example, the materials showed surface-enhanced Raman effect, which can provide special optic signal and demonstrate the application in high-sensitive detecting of organic molecules. The combination of Plasmon effect of metal particles and photonic stopband of the PCs can improve the emission intensity, which is significant for the application in high efficient detecting of special material. Otherwise, the stopband of metal-based PCs is beneficial for the improvement of the optic adsorbent property and photoluminescence property. Furthermore, the combination of metal materials and its suitable stopband can amplify its optic-electronic property, sensing property and the optic-catalytic behavior. Finally, the potential applications of metal-based PCs on the new energy system is put forward. Typically, it was used as optic-electric materials in solar cell, water electrolysis, and high efficient LED. This review will provide an important insight for the new energy development and potential utilization.