Effect of Ultraviolet Light Irradiation on Structure and Electrochemical Properties of Iron Surface
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Accession number;05A0303245
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| Title;Effect of Ultraviolet Light Irradiation on Structure and Electrochemical Properties of Iron Surface |
| Author;
NANJO H
(National Inst. Of Advanced Industrial Sci. And Technol. (aist), Sendai, Jpn)
DENG H
(Nanotechnology Res. Inst., Tsukuba, Jpn)
OCONER I S
(Metals Ind. Res. & Dev. Center, Metro Manila, Phl)
ISHIKAWA I
(National Inst. Of Advanced Industrial Sci. And Technol. (aist), Sendai, Jpn)
SUZUKI T M
(National Inst. Of Advanced Industrial Sci. And Technol. (aist), Sendai, Jpn)
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Journal Title;Jpn J Appl Phys Part 1
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Journal Code:G0520B
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ISSN:0021-4922
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VOL.44;NO.1B;PAGE.539-542(2005)
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| Figure&Table&Reference;FIG.5, REF.17 |
| Pub. Country;Japan |
| Language;English |
| Abstract;The effect of ultraviolet light (UV) irradiation (254 nm, 0.8 mW/cm2) on air-formed oxide films and passivated films on iron was investigated by electrochemical methods and scanning tunneling microscopy (STM), in particular with respect to surface micro/nanostructures and the surface protective property. An as-deposited film appeared uniformly flat after UV irradiation for 2-4 h, which is associated with a decrease in current density. UV irradiation for 1-4 h assisted N-dodecylhydroxamic acid (DHA) molecules to strongly bond to the air-formed oxide film. UV irradiation for 1 h led to the formation of a flat terrace of atomic resolution on a surface passivated at 800 mV for 15 min. However, it was difficult to observe a terrace wider than 3 nm on the passive film irradiated for 4 h. (author abst.) |
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