Silver Top Hat Single Crystal

Silver Top Hat Single Crystal offers ultra-high conductivity, exceptional reflectivity, and defect-free lattice integrity in a specialized “top hat” geometry tailored for precision optical and electronic studies. The single-crystal structure minimizes grain boundaries, supporting plasmonics, photonics, and low-loss quantum devices. Industries such as telecommunications, nanophotonics, and defense employ these crystals in surface plasmon resonance sensors, laser resonators, and next-generation communication systems. Specific uses include substrates for nano-patterning, calibration standards for high-resolution optics, and platforms for quantum plasmonic circuits. Research emphasizes their use in fabricating nanostructures with enhanced optical confinement and low scattering, advancing studies of light–matter interaction and metamaterial performance. The top hat format allows precise positioning in optical benches and device architectures, making it a versatile research and industry-grade standard for cutting-edge electronic and photonic technologies.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Single Crystal

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

Top Hat

Inside Diameter		+2% / -1%
Outside Diameter		+2% / -1%
Bottom Section Thickness		+2% / -1%
Top Section Thickness		+2% / -1%

Material Properties for Precious Metals

Atomic Properties

Element	Value
Atomic number	47
Crystal structure	Face centred cubic
Electronic structure	Kr 4d¹⁰ 5s¹
Valences shown	1-2,2
Atomic weight( amu )	107.8682
Thermal neutron absorption cross-section( Barns )	63.8
Photo-electric work function( eV )	4.7
Natural isotope distribution( Mass No./% )	107/ 51.83
Natural isotope distribution( Mass No./% )	109/ 48.17
Atomic radius - Goldschmidt( nm )	0.144
Ionisation potential( No./eV )	2/ 21.5
Ionisation potential( No./eV )	1/ 7.58
Ionisation potential( No./eV )	3/ 34.8

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.367
Poisson's ratio	0.367
Bulk modulus( GPa )	103.6
Bulk modulus( GPa )	103.6
Tensile modulus( GPa )	82.7
Tensile modulus( GPa )	82.7
Izod toughness( J m⁻¹ )	5
Hardness - Vickers( kgf mm⁻² )	95
Hardness - Vickers( kgf mm⁻² )	25
Tensile strength( MPa )	330
Tensile strength( MPa )	172

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	1.63@20@20°C
Temperature coefficient( K⁻¹ )	0.0041@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	0.74

Physical Properties

Element	Value
Boiling point( C )	2212
Density( gcm⁻³ )	10.5@20°C

Thermal Properties

Element	Value
Melting point( C )	961.9
Latent heat of evaporation( J g⁻¹ )	2390
Latent heat of fusion( J g⁻¹ )	103
Specific heat( J K⁻¹ kg⁻¹ )	237@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	429@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	19.1@0-100°C