China PV News Snippets
LONGi At Taiyangnews Reliable PV Module Design Conference & More From Zhonghuan Holdings, Kzone
Don’t miss listening to LONGi on 14 Dec at TaiyangNews Reliable PV Module Design Virtual Conference; Zhonghuan Holdings to buy RMB 7 billion raw materials from Xinjiang GCL; Kzone equipment passes client inspection.
China PV News Snippets
Greece PV Project Uses Trina Vertex 670W Modules & More From Zhonghuan, Kzone, Mubang Hi-Tech
Trina ships Vertex 670W series modules to Greece; Zhonghuan net profit at RMB 5 billion in Q3 2022; Kzone produces alkali polishing equipment; Mubang Hi-Tech to invest in silicon purification project.
Going Alkaline in Wafer Etching
In Cell Processing For PSG Removal And Edge Isolation A New Trend Is To Replace Acidic Solutions Partially Or Fully With Alkaline Alternatives
Solar cell emitter formation has 2 undesired outcomes – formation of phosphorus silicate glass (PSG) and an emitter formed on both sides of the wafer along the wafer rims.
Dry Etching For Texturing
Next To The Incumbent Wafer Texturing Method of Wet-Etching, There is An Alternative Called Atmospheric Dry Etching Process Offered By Nines PV
Surface preparation steps in a cell processing such as SDE and texturing are typically accomplished with wet-chemical benches (see Tools For Solar Wafer Texturing).
Tools For Solar Wafer Texturing
Higher Thoughput, Eliminating SDE And Reducing Chemical Consumption Are The Key Developments For Solar Wafer Texturing Wet Chemical Tools
Texturing is the heart of wet-chemical processes that are used for wafer conditioning — and accordingly the subject earned an important position among the wet-chemical processed discussed in our recent TaiyangNews Market Survey on PERC Cell Production Equipment 2022.
Several Improvements in Wafer Etching
Recent Key Developments In Texturing Have Been Mainly Eliminating IPA, Improving Bath Life Time And Lowering Texturing Times
One of the key applications of wet benches in solar cell processing is texturing, which is typically combined with saw damage etching and accomplished in an integrated setup.
Preparing The Surface For Topcon
Dry And Wet-Chemical Etching Solutions For Surface Preparation Of TOPCon Solar Cell Processing
While the core of TOPCon lies in deposition of tunneling oxide and the polysilicon layer, producing these cells, similar to PERC, does require several processing steps that are worth mentioning, not critical though.
Pyramid Size Matters
In Wet-Chemical Processing of HJT Cells More Silicon is Etched Off the Surface During Saw Damage Removal Compared to Standard Cells & Pyramid Size Optimization is Focus in Texturing Part
Compared to standard solar cell processing, HJT requires a completely different manufacturing setup. However, the wet-chemical process is somewhat an exception, as the basic process steps remain the same – saw damage removal, texturing and cleaning.
