Publications

@article{10.1117/1.JNP.7.073796,

title = {Phonon-assisted near-field activation of electron transfer},

author = {Takashi Yatsui and Kazaunori Iijima and Tsubasa Imoto and Kokoro Kitamura and Tadashi Kawazoe},

doi = {10.1117/1.JNP.7.073796},

year  = {2013},

date = {2013-09-01},

journal = {Journal of Nanophotonics},

volume = {7},

number = {1},

pages = {1 -- 8},

publisher = {SPIE},

abstract = {An optical near field should promote phonon-assisted multiple excitation in nanoscale structures. With the phonon-assisted process, greater catalytic activity is expected without heating. To confirm this effect, photo-induced current generation using platinum black electrodes in ferricyanide solution (an absorption band-edge wavelength of 470 nm) under visible light irradiation continuous wave [(CW), λ=532  nm ] was observed. Higher order dependence of the generated current density on the incident light power was observed, indicating two-step activation of electron transfer, which originated from the phonon-assisted near-field effect on the nanostructured surface of the electrode.},

keywords = {Absorption, Electrodes, First, Nanostructuring, Non-uniform optical near field, Platinum, sapphire},

pubstate = {published},

tppubtype = {article}

}