QJSOLAR-Pioneer in China Solar Monocrystalline Field

Pioneering several key technologies

Over 20 years of expertise in N-type production

Low-carbon production

Advanced production capacity

Full traceability

Empowering High-Quality Wafers

Conductance type

N-Type

P-Type

Wafers Type

210*210

182.2*182.2

182.2*183.75

182*210

210*105

Size customized

Geometry

Index	Property	Inspection Method
90°±0.12°	Angle Etween Adjacent Sides	Wafer Inspection System
Batch Ave:≥Thickness Thickness(110/120/125/130/135/140/145/150μm) Uniwafer Ave:Thickness±8μm	Thickness
≤20μm	TTV(Total Thickness Variation)

Material Properties

Index	Property	Inspection Method
≤11 ppma	Oxygen Concentration[Oi]	Test methods for determining the orientation of single crystal GBT 1557-2018
≤1 ppma	Carbon Concentration[Cs]	Test method for substitutional atomic carbon concentration of silicon by infrared absorption GB/T 1558-2009
≤500/cm⁻²	Etch Pit Density(Dislocation Density)	Testing method for crystallographic perfection of silicon by preferential etch techniques GB/T 1554-2009
<100>±3°	Surface Orientation	Test methods for determining the orientation of single crystal GBIT 1555-2023
0.6-1.6Ω·cm	Resistivity	Wafer Inspection System
≥1000μs	Minority Carrier Lifetime	Transient

Geometry

Index	Property	Inspection Method
90°±0.15°	Angle Etween Adjacent Sides	Wafer Inspection System
Batch Ave:≥Thickness Thickness(150μm) Uniwafer Ave:Thickness±10μm	Thickness
≤25μm	TTV(Total Thickness Variation)

Material Properties

Index	Property	Inspection Method
≤11 ppma	Oxygen Concentration[Oi]	The method of determining interstitial oxygen content in silicon by infrared absorption
≤1 ppma	Carbon Concentration[Cs]	Test method for substitutional atomic carbon concentration of silicon by infrared absorption GB/T 1558-2009
≤500/cm⁻²	Etch Pit Density(Dislocation Density)	Testing method for crystallographic perfection of silicon by preferential etch techniques
<100>±3°	Surface Orientation	Test methods for determining the orientation of single crystal
0.4-1.1Ω·cm	Resistivity	Wafer Inspection System
≥70μs	Minority Carrier Lifetime	Transient

Please Click On The Question You Want To Consult

1.What is the main business of QJSOLAR?

QJSOLAR is a highly innovative solar company specializing in producing monocrystalline ingots and wafers. Starting in the 1990s with 2 domestic pullers, QJSOALR embarked on the exploration of N-type products in 2002 and became the first company in China to develop N-type monocrystalline ingots. It has over 20 years of dedication to the N-type ingots and wafers.

2.What are the technologies and innovations of QJSOLAR?

As pioneer in China solar monocrystalline field, QJSOLAR has more than 20 years of dedication to the N-type products experience, pioneering several key technologies. Currently, QJSOLAR has completed the integration of full-line digitization and informatization of production lines and continues to deepen the development of digitization and informatization, always staying at the forefront of technological exploration.

3.What is the production capacity of QJSOLAR?

QJSOLAR focuses on advanced production capacity, with a total planned production capacity of 40GW of ingots and 20GW of wafers. At present, the company is steadily expanding its production capacity and strategically planning the construction projects of the first, second, and third-phase factories.

4.How is the quality performance of QJSOLAR's products?

The business of QJSOLAR covers the global market and has a high level of market recognition. Its products rank among the top in the quality rankings from several clients and have won honorary awards such as the "Annual Quality Contribution Award" the "Certificate of Excellent Partnership" and the "Outstanding Strategic Cooperative Supplier", which are issued by various clients.

5.What sizes of products does QJSOLAR offer?

QJSOLAR focuses on large-sized N-type wafers and provides wafers that cover the mainstream technologies in the PV industry, such as Topcon, HJT, and BC. The sizes include 210*210, 182.2*182.2, 210*182, 183.75*182.2, and it also supports customized services for diversified sizes such as rectangular wafers and half wafers.