Nano Sensing and Energy Conversion Using Surface Plasmon Resonance (SPR)

Materials

Iltai (Isaac) Kim¹  Kenneth David Kihm² 

[1] School of Engineering and Computing Science, Texas A&M University-Corpus Christi, 6300 Ocean Drive Unit 5797, Corpus Christi, TX 78412, USA;Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee, 408 Dougherty Hall, Knoxville, TN 37996-2210, USA; E-Mail:

关键词: surface plasmon resonance (SPR);    nanophotonics;    sensing;    energy conversion;   

DOI  :  10.3390/ma8074332

来源: mdpi

【 摘 要 】

Nanophotonic technique has been attracting much attention in applications of nano-bio-chemical sensing and energy conversion of solar energy harvesting and enhanced energy transfer. One approach for nano-bio-chemical sensing is surface plasmon resonance (SPR) imaging, which can detect the material properties, such as density, ion concentration, temperature, and effective refractive index in high sensitivity, label-free, and real-time under ambient conditions. Recent study shows that SPR can successfully detect the concentration variation of nanofluids during evaporation-induced self-assembly process. Spoof surface plasmon resonance based on multilayer metallo-dielectric hyperbolic metamaterials demonstrate SPR dispersion control, which can be combined with SPR imaging, to characterize high refractive index materials because of its exotic optical properties. Furthermore, nano-biophotonics could enable innovative energy conversion such as the increase of absorption and emission efficiency and the perfect absorption. Localized SPR using metal nanoparticles shows highly enhanced absorption in solar energy harvesting. Three-dimensional hyperbolic metamaterial cavity nanostructure shows enhanced spontaneous emission. Recently ultrathin film perfect absorber is demonstrated with the film thickness as low as ~1/50th of the operating wavelength using epsilon-near-zero (ENZ) phenomena at the wavelength close to SPR. It is expected to provide a breakthrough in sensing and energy conversion applications using the exotic optical properties based on the nanophotonic technique.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.