Polycrystalline Silicon Uses
Melting point: 1410°C
Boiling point: 2355°C
introduction
Polycrystalline Silicon (Polysilicon) is a high-purity material composed of multiple silicon crystals. It serves as a key raw material for manufacturing solar photovoltaic cells and semiconductor components, enabling efficient electricity generation and electronic device fabrication.
features
Diverse Purity Grades
Available in solar-grade (6N–9N) and electronic-grade (9N–11N) purity levels, ensuring suitability for both photovoltaic and semiconductor manufacturing.
Stable Crystal Structure
Composed of multiple silicon grains with diamond lattice structure, providing consistent physical and chemical performance.
Controlled Reactivity
Chemically stable at room temperature while offering predictable reactivity at elevated temperatures for refining and processing.
Uniform Material Properties
Delivers consistent density (2.32–2.34 g/cm³) and composition, supporting reliable ingot growth and wafer production.
Cost-Performance Balance
Compared with monocrystalline feedstock routes, polysilicon enables scalable production with optimized cost efficiency.
applications
Photovoltaic Industry
Core raw material for solar cells, processed into ingots and wafers for large-scale solar power generation systems.
Semiconductor Manufacturing
Used as feedstock for single-crystal silicon growth and wafer production for integrated circuits and electronic components.
Electronic Materials Processing
Applied in specific semiconductor structures (e.g., gate materials, thin films) due to its controllable electrical properties.
Metallurgical Additives (Limited Use)
In smaller quantities, used in alloying to enhance strength, wear resistance, and conductivity in aluminum and magnesium alloys.
why choose Us
Production Capability
- Equipped with modern submerged arc furnace (SAF) systems, medium-frequency induction furnaces, and automated alloy smelting lines
- Integrated raw material pre-treatment system, including crushing, screening, and precise batching to ensure stable furnace input
- Advanced temperature control and real-time monitoring system during smelting process to improve consistency and energy efficiency
- Strong output capacity designed to support long-term bulk wholesale and contract supply
Quality Assurance
- Strict incoming raw material inspection system
- In-house chemical laboratory testing center, equipped with spectrometer (OES), carbon-sulfur analyzer, and moisture detection equipment
- Each batch undergoes pre-shipment composition verification and sampling inspection
- Compliance with international industrial standards such as ISO quality management system (ISO 9001)
- Support for third-party inspection services (SGS, BV, CIQ or customer-designated inspection agencies)
- Batch traceability system ensuring full production record tracking from furnace to shipment
OEM & Custom Supply
- Custom production based on customer-required chemical composition and specification standards
- Flexible packaging solutions: 1MT / 25kg / 50kg woven bags, jumbo bags (FIBC), steel drums or container bulk loading
- Private label service (branding, marking, labeling)
Global Supply & Logistics
- Export-oriented supply chain system with experience serving Europe, Middle East, Southeast Asia, South America and Africa markets
- Cooperation with major international ports and freight forwarders for stable shipment arrangements
- Flexible shipping solutions: FCL (Full Container Load) and bulk vessel shipment (break bulk / dry bulk)
- Professional loading supervision to ensure accurate weight, safe packing, and moisture protection
- Timely coordination of customs clearance documents to reduce shipping delays
Customer Support & Service
- Dedicated sales and technical team with fast response
- Pre-sales technical support for grade selection, application guidance, and cost optimization suggestions
- Order tracking system with regular production and shipping updates
- After-sales support covering: Quality claim handling, technical feedback response, long-term cooperation improvement suggestions
Our address
Jinjie Industrial Park, Shenmu City, Yulin City, Shaanxi Province
Phone Number
+86 166 3835 9670
jennywu@ns-ferroalloy.com
FAQ
Q1: Why is polycrystalline silicon widely used in solar energy projects?
A: It offers a strong balance between cost and performance. Compared with monocrystalline silicon, it is cheaper to produce while still providing reliable energy conversion efficiency for large-scale installations.
Q2: What is your typical delivery time?
A: Standard delivery is within 10 days after receipt of advance payment.
Q3: What kind of pre-sales materials can you provide?
A: We offer free samples, product brochures, laboratory test reports, and industry insights, helping customers evaluate product quality and support procurement decisions.
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