A Gold Complex Single Crystal Comprising Nanoporosity and Curved Surfaces

Maria Koifman Khristosov; Leonid Bloch; Manfred Burghammer; Paul Zaslansky; Yaron Kauffmann; Alex Katsman; Boaz Pokroy

doi:10.1021/acs.cgd.6b01468

A Gold Complex Single Crystal Comprising Nanoporosity and Curved Surfaces

Maria Koifman Khristosov, Leonid Bloch, Manfred Burghammer, Paul Zaslansky, Yaron Kauffmann, Alex Katsman, Boaz Pokroy

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Complex hierarchical shapes are widely known in biogenic single crystals, but growth of intricate synthetic metal single crystals is still a challenge. Here we report a simple method for growing intricately shaped single crystals of gold, each consisting of a micron-sized crystal surrounded by a nanoporous structure, while the two parts constitute a single crystal. This is achieved by annealing thin films of gold and germanium to solidify a eutectic composition melt at a hypoeutectic concentration (Au-enriched composition). Transmission electron microscopy and synchrotron submicron scanning diffractometry as well as imaging confirmed that the whole structure was indeed a single crystal. A kinetic model showing how this intricate single-crystal structure can be grown is presented.

Original language	English
Pages (from-to)	221-227
Number of pages	7
Journal	Crystal Growth and Design
Volume	17
Issue number	1
DOIs	https://doi.org/10.1021/acs.cgd.6b01468
State	Published - 4 Jan 2017

All Science Journal Classification (ASJC) codes

General Chemistry
General Materials Science
Condensed Matter Physics

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abstract = "Complex hierarchical shapes are widely known in biogenic single crystals, but growth of intricate synthetic metal single crystals is still a challenge. Here we report a simple method for growing intricately shaped single crystals of gold, each consisting of a micron-sized crystal surrounded by a nanoporous structure, while the two parts constitute a single crystal. This is achieved by annealing thin films of gold and germanium to solidify a eutectic composition melt at a hypoeutectic concentration (Au-enriched composition). Transmission electron microscopy and synchrotron submicron scanning diffractometry as well as imaging confirmed that the whole structure was indeed a single crystal. A kinetic model showing how this intricate single-crystal structure can be grown is presented.",

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AU - Khristosov, Maria Koifman

AU - Bloch, Leonid

AU - Burghammer, Manfred

AU - Zaslansky, Paul

AU - Kauffmann, Yaron

AU - Katsman, Alex

AU - Pokroy, Boaz

PY - 2017/1/4

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AB - Complex hierarchical shapes are widely known in biogenic single crystals, but growth of intricate synthetic metal single crystals is still a challenge. Here we report a simple method for growing intricately shaped single crystals of gold, each consisting of a micron-sized crystal surrounded by a nanoporous structure, while the two parts constitute a single crystal. This is achieved by annealing thin films of gold and germanium to solidify a eutectic composition melt at a hypoeutectic concentration (Au-enriched composition). Transmission electron microscopy and synchrotron submicron scanning diffractometry as well as imaging confirmed that the whole structure was indeed a single crystal. A kinetic model showing how this intricate single-crystal structure can be grown is presented.

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M3 - مقالة

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A Gold Complex Single Crystal Comprising Nanoporosity and Curved Surfaces

Abstract

All Science Journal Classification (ASJC) codes

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