Solar Grade Quartz Tube - Technical Specifications
High-purity fused silica tubes engineered for photovoltaic manufacturing processes, featuring optimized thermal stability and cost-efficiency for solar cell production lines56.
Core Material Properties
Enhanced Purity:
SiO₂ >99.995% with controlled boron/phosphorus content (<3 ppm), preventing dopant interference in diffusion processes56.
Thermal Performance:
Continuous operation at 1,100°C; softening point 1,670°C56.
UV Transparency:
90% transmission at 254 nm for process monitoring applications5.
Precision Specifications
| Parameter | Value |
|---|
| Outer Diameter | 80–400 mm ±0.1 mm58 |
| Wall Thickness | 2–15 mm ±0.2 mm5 |
| Length | ≤2,500 mm (customizable)5 |
| Surface Finish | Fire-polished (Ra ≤1.0 μm)5 |
Photovoltaic-Specific Advantages
Diffusion Process Optimization:
Uniform thermal distribution for phosphorus diffusion in PERC/TOPCon solar cells56.
Chemical Resistance:
Withstands POCl₃ gas and etchants (e.g., HF/HNO₃ mixtures) in texturing baths56.
Economic Efficiency:
30% lower cost versus semiconductor-grade tubes while maintaining critical performance68.
Primary Applications
Diffusion Furnaces:
Core tubing for dopant distribution in mono/polycrystalline silicon wafers56.
Wafer Cleaning Systems:
Acid-resistant carrier tubes in wet bench stations15.
Annealing Modules:
High-temperature carriers for metal paste curing6.
⚠️ Critical Handling Protocols
Thermal Cycling:
Max ramp rate 15°C/min above 500°C5.
Chemical Exposure:
Compatible with SC1/SC2 cleaning solutions; incompatible with alkalis5.
Installation:
Avoid mechanical stress at flange joints; max torque 0.5 N·m5.
Compliance: ISO 9001 & IEC 61215 certified; RoHS compliant
