G230 Texturing Additive IPA-Free

G230 Texturing Additive – High-Performance IPA-Free Surfactant for Solar Cell Texturing

Overview
G230 is a colorless, transparent, and biodegradable texturing additive specifically developed for the production of monocrystalline and multicrystalline silicon solar cells. It is IPA-free (contains no isopropyl alcohol), non-toxic, odorless, and environmentally friendly. The additive delivers outstanding texturing performance with high nucleation density, short processing time, extended bath life, excellent pyramid uniformity, and strong deactivation capability.

Key Features

• High nucleation rate – enables rapid formation of uniform pyramid structures.

• Short texturing time – achieves complete texturing in ≤0.7 minutes with low etchant consumption (0.3–0.4 g).

• Long bath life – maintains stable performance over extended production runs.

• Excellent pyramid uniformity – improves light trapping and cell efficiency.

• High deactivation capacity – ensures consistent etching control.

• Low dosage – reduces chemical costs and simplifies handling.

• Biodegradable – safe for the environment and workers.

• Compatible with both NaOH and KOH systems, as well as O₃ and H₂O₂ pre-treatment processes.

Applications
G230 is suitable for direct one-step texturing without polishing, ideal for high-volume production lines. It can be adapted to both short-cycle and standard texturing processes.

Equipment Preparation (First Use)
Before initial use, all equipment and accessories (e.g., velvet grooves, wafer cassettes) that will contact the additive must be thoroughly cleaned. Recommended cleaning procedure:

1. Rinse with water, then circulate a 1% (v/v) alkaline solution with 4% (v/v) H₂O₂ at 70°C for 30 minutes (immerse cassettes simultaneously). Drain, rinse with water for 15 minutes, drain.

2. Using the standard G230 texturing bath, add 1% (v/v) M230 additive and circulate at 80°C for 30 minutes (with cassettes immersed). Drain, rinse for 15 minutes, drain.

3. For small-batch trials, use the first texturing tank to avoid cross-contamination. After adding additives, mix for 15 minutes to ensure uniform distribution.

Process Integration

• Diffusion: Standard process; square resistance controlled within production line quality limits.

• Etching: Conventional sequence.

• PECVD Coating: Film thickness and refractive index can be maintained using standard parameters.

• Firing: Adjust firing temperature based on electrical parameters (Uoc, Rs, Rsh) to optimize performance.

Packaging and Transport

• Inner packaging: 4 L plastic bottles.

• Outer packaging: Carton box, 4 bottles per box.

• Transport: Cover during transit to protect from sun and rain; keep vehicles clean; prevent damage.

• Storage: Store in a cool, dry, well-ventilated place, away from direct sunlight and heat sources.

Dosage and Usage
Typical dosage is low – optimize based on production conditions. The additive is easy to use and offers low overall cost.

Safety and Environmental
G230 is biodegradable, free from hazardous solvents, and poses no irritating odor. It is safe for operators when handled with standard chemical protective equipment.

Quality Assurance
Each batch is tested for purity, activity, and performance consistency to ensure reliable results in photovoltaic manufacturing.