Radiant Transfer Analysis on Enhancement of Light Convergence into Transparent Nanoporous Substrate for Supporting Photochemical Species

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  • Ishido Yoshinari
    Integrated Functional Materials Group, Inorganic Functional Materials Research Institute, 
National Institute of Advanced Industrial Science and Technology (AIST, Kansai)

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<p>Nanoporous silica glass is found to be much available for light driven hydrogen production. However, the mechanisms of production enhancement have been merely understood. From the viewpoint of optics, we try to analyze theoretically the enhancement on converging a natural light into the nanopore of a transparent substrate within photochemical species using radiant transfer model. As a result, it is found that explosive growing the irradiated area of the inner surface on photochemical species in the nanoporous system brings a spectral merit. However, some numerical calculations of the form factor between the outer and inner surface of the system are needed for more precise inference on its priority of light convergence to alternative fabrics.</p>

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