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Optics and Photovoltaics
Ultra Clean Diamond Powders for Optical Polishing and PV Wafers
Advanced Diamond for Optics and Photovoltaics Industry
Advanced diamond powders and diamond pastes are essential for achieving low-damage polishing, optical flatness, and high transmission in the optics and photovoltaics industry.
From wafer slicing and lapping to CMP and final polish of silicon, sapphire, fused silica, SiC, and GaN, diamond media provide extreme hardness, wear resistance, and thermal conductivity to deliver minimal subsurface damage, low haze, and scratch-free surfaces.
Crownkyn’s precision graded diamond powders and ready to use diamond pastes combine narrow particle size distribution, high purity, and controlled crystal morphology. Offered from nanodiamond to micron sizes, with oil based or water based carriers and optional surface treated grades for stable slurries, our diamond pastes feature calibrated viscosity for repeatable application. Reliable batch to batch consistency and dependable supply help manufacturers achieve faster removal at target roughness, improve yield, and maintain uniform quality across lenses, coatings, laser optics, and solar wafers.
Application in Optics and Photovoltaics Industry
With exceptional hardness (Mohs 10), outstanding thermal conductivity, and chemical stability, our diamond powders and diamond polishing compounds enable nanometre-level surface roughness, improving both efficiency and yield in manufacturing processes. Backed by stable quality, tight particle size distribution, and a reliable supply chain, Crownkyn supports your production with consistent results and reduced process variation.
Precision Machining
- Aspheric & freeform optics (mobile lenses, laser collimators): SPDT on ZnSe/Ge/Si, achieving PV < 0.3 μm.
- Sapphire windows (camera covers): Precision diamond grinding, delivering Ra < 10 nm.
- Solar cell electrode moulds: Diamond tooling of copper/graphite to form < 20 μm grid lines in PERC/TOPCon cells.
polishing and Lapping
Use CMP with Micron Diamond Powder and Diamond Paste to achieve nanometre scale surface roughness (Ra < 1 nm) on laser optics, photovoltaic silicon wafers and semiconductor wafers.
- Laser optical components (Nd:YAG crystals, CO₂ laser mirrors): W0.1–W1 diamond paste achieves Ra < 0.5 nm and reduces scattering
- Optical communications (fibre connector end-faces): W5 → W0.1 polishing delivers Ra < 0.2 nm
- PERC passivation polishing (Al₂O₃/SiNₓ): Selective diamond paste increases back reflectance; +0.3–0.5% efficiency
- TOPCon tunnelling oxide planarisation (SiO₂): 50–100 nm nano-diamond lowers contact resistance and improves Vo
Cutting and Dicing
- Sapphire cutting (LED/optical windows): High-precision cutting with diamond wire saws; chipping < 10 μm.
- Infrared crystal dicing: Diamond blade processing to avoid thermal damage.
- Silicon wafer cutting: Diamond wire sawing of thin slices, increasing material utilisation by 20%.
- Thin-film cell cutting: Diamond laser cutting with crack-free edges; 99.5% yield
Surface Treatment
Using grinding, etching and functional coating processes with Micron Diamond Powder and Nanodiamond Powder , you achieve submicrometre surface finishing, widely applied to optical coating substrates and the functional surface preparation of photovoltaic cells.
- AR coating substrates (optics): Diamond paste polish to Ra < 1 nm; improved adhesion
- Superhydrophobic surfaces (optics): Diamond blasting + chemical etch for micro-nano texture and self-cleaning
- Black silicon texturing (PV): Nanodiamond-assisted RIE; reflectance < 5%
- Perovskite electrodes (PV): Diamond polish on ITO/FTO; fewer defects and better stability
Crownkyn’s synthetic diamond powders help diamond tool manufacturers, precision finishing suppliers and synthetic diamond powder traders in optics and photovoltaics achieve stable, repeatable process control from lens shaping to wafer finishing.
With tightly graded wheel-size, micron and nano diamonds (including coated) available as powder, paste and slurry, you obtain optical-grade form accuracy and ultra-smooth surfaces.
Optimised for SPDT, grinding, CMP, dicing and wire sawing of optical glass, sapphire, infrared crystals and photovoltaic silicon, our stable quality and dependable supply reduce chipping and insertion loss while increasing yield and tool life.
Precision Diamond Solutions for Optics and Photovoltaics
Engineered for Precision and Surface Quality
Solutions That Strengthen Your Process
- High-precision surface finishing with minimal scratches and low Ra values in lens and wafer polishing
- Efficient material removal and edge control in slicing, cutting, and dicing of silicon and brittle substrates
- Tight dimensional tolerances achieved through stable particle performance in lapping and fine grinding
- Consistent quality ensured by clean particle morphology and batch-to-batch control
- Stable process performance under high-load, high-temperature conditions in CMP and edge beveling
Work with Crownkyn
Comprehensive range of Diamond Powder in Stone and Construction Processing
Sawing Size Diamond
Wheel Size Diamond
Crushed Diamond Powder
Micron Diamond Powder
Get Professional Solution
Unlock your production’s full potential with Crownkyn’s high-performance superabrasives.
Engineered with precision and backed by a commitment to stable quality, our synthetic diamond powders, CBN powders and diamond pastes are designed to boost your efficiency in the most demanding industrial applications.
Don’t compromise on performance — connect with us today and discover how Crownkyn can help you achieve consistent results, reduce downtime and extend tool life. Inquire Now and take the first step towards greater productivity and long-term success with Crownkyn.
