Stable and metastable nanowires displaying locally controllable properties

Sutter, Eli Anguelova; Sutter, Peter Werner

Title: Stable and metastable nanowires displaying locally controllable properties

Abstract

Vapor-liquid-solid growth of nanowires is tailored to achieve complex one-dimensional material geometries using phase diagrams determined for nanoscale materials. Segmented one-dimensional nanowires having constant composition display locally variable electronic band structures that are determined by the diameter of the nanowires. The unique electrical and optical properties of the segmented nanowires are exploited to form electronic and optoelectronic devices. Using gold-germanium as a model system, in situ transmission electron microscopy establishes, for nanometer-sized Au--Ge alloy drops at the tips of Ge nanowires (NWs), the parts of the phase diagram that determine their temperature-dependent equilibrium composition. The nanoscale phase diagram is then used to determine the exchange of material between the NW and the drop. The phase diagram for the nanoscale drop deviates significantly from that of the bulk alloy.

Inventors:: Sutter, Eli Anguelova; Sutter, Peter Werner

Issue Date:: 2014-11-18

Research Org.:: Brookhaven National Lab. (BNL), Upton, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1163986

Patent Number(s):: 8890115

Application Number:: 13/526,239

Assignee:: Brookhaven Science Associates, LLC (Upton, NY)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L21/02653 - {Vapour-liquid-solid growth}

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
B82Y40/00 - Manufacture or treatment of nanostructures
B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B82Y20/00 - Nanooptics, e.g. quantum optics or photonic crystals

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L21/02645 - {Seed materials}
H01L21/02609 - {Crystal orientation}
H01L21/02603 - {Nanowires}
H01L29/0665 - {the shape of the body defining a nanostructure
H01L21/02521 - {Materials}
H01L29/0669 - {Nanowires or nanotubes
H01L21/02532 - {Silicon, silicon germanium, germanium}

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
B82Y10/00 - Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L29/0673 - {oriented parallel to a substrate}
H01L21/0262 - {Reduction or decomposition of gaseous compounds, e.g. CVD}

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DOE Contract Number:: AC02-98CH10886

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE

Citation Formats


                    Sutter, Eli Anguelova, and Sutter, Peter Werner. Stable and metastable nanowires displaying locally controllable properties.  United States: N. p., 2014. 
        Web.

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                    Sutter, Eli Anguelova, & Sutter, Peter Werner. Stable and metastable nanowires displaying locally controllable properties.  United States.

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                    Sutter, Eli Anguelova, and Sutter, Peter Werner. Tue .  
        "Stable and metastable nanowires displaying locally controllable properties".  United States.  https://www.osti.gov/servlets/purl/1163986.

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@article{osti_1163986,

  title        = {Stable and metastable nanowires displaying locally controllable properties},

  author       = {Sutter, Eli Anguelova and Sutter, Peter Werner},

  abstractNote = {Vapor-liquid-solid growth of nanowires is tailored to achieve complex one-dimensional material geometries using phase diagrams determined for nanoscale materials. Segmented one-dimensional nanowires having constant composition display locally variable electronic band structures that are determined by the diameter of the nanowires. The unique electrical and optical properties of the segmented nanowires are exploited to form electronic and optoelectronic devices. Using gold-germanium as a model system, in situ transmission electron microscopy establishes, for nanometer-sized Au--Ge alloy drops at the tips of Ge nanowires (NWs), the parts of the phase diagram that determine their temperature-dependent equilibrium composition. The nanoscale phase diagram is then used to determine the exchange of material between the NW and the drop. The phase diagram for the nanoscale drop deviates significantly from that of the bulk alloy.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {11}

}

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Works referenced in this record:

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Sutter, E.; Sutter, P.
Nanotechnology, Vol. 22, Issue 29
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Schülli, T. U.; Daudin, R.; Renaud, G.
Nature, Vol. 464, Issue 7292
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Assembly of ordered carbon shells on GaN nanowires
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Sutter, Eli; Sutter, Peter; Calarco, Raffaella
Applied Physics Letters, Vol. 90, Issue 9
https://doi.org/10.1063/1.2710189

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Similar Records

Title: Stable and metastable nanowires displaying locally controllable properties

Abstract

Citation Formats

Formation and stabilization of single-crystalline metastable AuGe phases in Ge nanowires journal, June 2011

Phase-Controlled Growth of Metastable Fe 5 Si 3 Nanowires by a Vapor Transport Method journal, July 2007

Phase decomposition in liquid-quenched eutectic Au-Ge alloy journal, April 1978

Phase structure of electrodeposited alloys journal, August 2005

The Au−Ge system (Gold-Germanium) journal, September 1980

Formation of an intermediate phase in eutectic Au-Ge and Ag-Ge systems under high pressure journal, June 1991

Splat cooling and metastable phases journal, November 1973

Metastable Metallic Alloys journal, December 1999

Substrate-enhanced supercooling in AuSi eutectic droplets journal, April 2010

Assembly of ordered carbon shells on GaN nanowires journal, February 2007

Formation and stabilization of single-crystalline metastable AuGe phases in Ge nanowires
journal, June 2011

Phase-Controlled Growth of Metastable Fe ₅ Si ₃ Nanowires by a Vapor Transport Method
journal, July 2007

Phase decomposition in liquid-quenched eutectic Au-Ge alloy
journal, April 1978

Phase structure of electrodeposited alloys
journal, August 2005

The Au−Ge system (Gold-Germanium)
journal, September 1980

Formation of an intermediate phase in eutectic Au-Ge and Ag-Ge systems under high pressure
journal, June 1991

Splat cooling and metastable phases
journal, November 1973

Metastable Metallic Alloys
journal, December 1999

Substrate-enhanced supercooling in AuSi eutectic droplets
journal, April 2010

Assembly of ordered carbon shells on GaN nanowires
journal, February 2007