A tier one cell manufacturer has ordered a second RENA-SoLayTec machine to start producing Passivated Emitter and Rear Cells (PERC) cells.
The unnamed customer had been using the ALD Al2O3 InPassion LAB tool for research and development at its mono-Si wafer production base in China and will look to move into mass production.
The manufacturer in question was one of the first adopters of the Al2O3 passivation technology and has recently announced results of average conversion efficiency of more than 20% with its p-type mono-Si wafers.
“It has tested several Al2O3 solutions in its lab and we are proud that it has chosen our InPassion ALD technology for its next step towards mass production of high efficiency cells,” said Roger Görtzen, manager marketing and sales and co-founder of SoLayTec.
The manufacturer has decided to continue the transition of Al2O3 into mass production based on the superior quality of Al2O3 deposition using ALD and the related low costs per layer.
The cell efficiency improvement of Al2O3 from leads to an increase of up to 1.0% efficiency gain, according to RENA-SoLayTec.
“We are continuously working to reduce the cost of ownership for affordable Al2O3 deposition,” added Görtzen. “Our main developments focus on increasing output using the same machine hardware and a further reduction of all consumables.”
RENA's Peter Fath recently spoke to PV Tech about the ALD tool. Watch the the video here.