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Gold Square Single Crystal

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Properties common to all products in this list

Composition: Au Form: Single Crystal Material: Gold CAS Number: 7440-57-5 Commodity: Precious Metals Purity: 99.999% (5N) Thickness: 1mm
Gold Square Single Crystal offers an atomically ordered, monocrystalline gold surface with well-defined crystallographic facets—often {110} or {111}—providing superior electronic homogeneity, optical reflectivity, and chemical inertness. Produced via controlled crystal growth and precision cutting, these square geometries enable consistent orientation critical for advanced nanophotonic, plasmonic, and electrochemical applications. Primary industries leveraging this material include nanoelectronics, catalysis, and quantum photonics. Specific technologies benefiting from Gold Square Single Crystal include surface-enhanced Raman spectroscopy (SERS) arrays, on-chip plasmonic waveguides, and high-resolution electrochemical sensors. The uniform lattice structure minimizes defects and grain boundaries, ensuring reproducible optical resonances, catalytic activity, and electrical performance. This material plays a key role in research on light–matter interactions, energy conversion, and molecular-scale electronics. Its precision and stability make Gold Square Single Crystal a cornerstone for cutting-edge scientific investigations and industrial innovations where nanoscale control is paramount.
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Material Properties

Atomic Properties
Element Value
Atomic number 79
Crystal structure Face centred cubic
Electronic structure Xe 4f¹⁴ 5d¹⁰ 6s¹
Valences shown 1,3
Atomic weight( amu ) 196.9665
Thermal neutron absorption cross-section( Barns ) 98.8
Photo-electric work function( eV ) 4.8
Atomic radius - Goldschmidt( nm ) 0.144
Ionisation potential( No./eV ) 1/ 9.22
Ionisation potential( No./eV ) 2/ 20.5
Mechanical Properties
Element Value
Material condition Soft
Material condition Hard
Poisson's ratio 0.42
Poisson's ratio 0.42
Bulk modulus( GPa ) 171
Bulk modulus( GPa ) 171
Tensile modulus( GPa ) 78.5
Tensile modulus( GPa ) 78.5
Hardness - Vickers( kgf mm⁻² ) 20-30
Hardness - Vickers( kgf mm⁻² ) 60
Tensile strength( MPa ) 130
Tensile strength( MPa ) 220
Yield strength( MPa ) 205
Yield strength( MPa ) -
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 2.20@20°C
Temperature coefficient( K⁻¹ ) 0.004@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV ) 0.74
Physical Properties
Element Value
Boiling point( C ) 3080
Density( gcm⁻³ ) 19.3@20°C
Thermal Properties
Element Value
Melting point( C ) 1064.4
Latent heat of evaporation( J g⁻¹ ) 1738
Latent heat of fusion( J g⁻¹ ) 64.9
Specific heat( J K⁻¹ kg⁻¹ ) 129@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 318@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 14.1@0-100°C
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Available Configurations

Properties common to all products in this list

Composition: Au Form: Single Crystal Material: Gold CAS Number: 7440-57-5 Commodity: Precious Metals Purity: 99.999% (5N) Thickness: 1mm

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Tolerances

Single Crystal
Orientation See Item
Thickness +2% / -1%
Length +2% / -1%