期刊
ADVANCED MATERIALS INTERFACES
卷 1, 期 8, 页码 -出版社
WILEY-BLACKWELL
DOI: 10.1002/admi.201400187
关键词
-
资金
- Ministry of Science, Infrastructure Program
- PBC Program of Fellowships
Bottom-up technologies are based upon the premise that organized systems - from the nano-scale up to the macro-scale - can be assembled spontaneously from basic building blocks in solution. We demonstrate a simple strategy for the generation of extremely long (up to several centimeters), horizontally-aligned gold micro-wires, produced through a surfactant monolayer template deposited from gold thiocyanate [Au(SCN)(4)(-)] aqueous solution. Specifically, we show that the surfactant, octyl-maleimide (OM), spontaneously forms oriented micro-wires at the air/water interface, which constitute a template for deposition of metallic gold through binding and crystallization of the soluble gold complex. The Au micro-wires can be subsequently transferred onto solid substrates, and following plasma treatment and gold enhancement exhibit excellent conductivity even at electrode spacings of several centimeters. Importantly, the micro-wire alignment determines the direction of electrical current, demonstrating that long-range ordering of the micro-wires can be accomplished, significantly affecting the physical properties of the system. The new approach is simple, robust, and can be readily exploited for bottom-up fabrication of micro-wire assemblies and transparent conductive electrodes.
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