Coherent microradiology directly observes a critical cathode-anode distance effect in localized electrochemical deposition
Localized electrochemical deposition (LECD) is an emerging technology for inexpensive and effective fabrication of high-aspect-ratio microstructure of diverse materials. Microradiology with coherent X-rays enabled study of this process in real-time. This led to the discovery of a fundamental role of the microelectrode-structure distance: for short distances the deposition rate increases dramatically but the product becomes porous. This role is explained qualitatively with the interplay between metal-ion diffusion and migration in the deposition process. (C) 2004 The Electrochemical Society.
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2004
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Pohang Univ Sci & Technol, Dept Mat Sci, Pohang 790784, South Korea. Acad Sinica, Inst Phys, Taipei 11529, Taiwan. China Steel Co, Kaohsiung, Taiwan. Ecole Polytech Fed Lausanne, Fac Sci Base, CH-1015 Lausanne, Switzerland. Seol, SK, Pohang Univ Sci & Technol, Dept Mat Sci, Pohang 790784, South Korea. jhje@postech.ac.kr
ISI Document Delivery No.: 848MR
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