Leadmicro’s Chief Scientist (Professor) Baochen Liao while speaking on day 3 of the 4-day TaiyangNews High Efficiency Solar Technologies 2024 Conference in December 2024, addressed the challenges related to UVID in PV devices.
Quoting a literature review of UVID potential mechanisms, he said UV radiation of the DPERT cell results in the formation of suboxides near the SixNy/Si interface, and increased recombination activity at the Si/passivation interface.
According to Liao, contrary to misconceptions AlOx mitigates UV degradation rather than causing it. The literature review shows that modules with AlOx performed stably post-UV exposure compared to SiNx-based modules, which degraded significantly.
Leadmicro’s production equipment for TOPCon technologies focuses on UVID solutions without compromising on efficiency and power generation. Its 5th generation PECVD ToxPoly technology reduces process complexity since a single tube can help with in-situ tunnel oxide, in-situ poly-Si doping, in-situ mask, etc.
This 5th generation PECVD ToxPoly comes with a non-cooling tube/electrode maintenance solution that reduces maintenance time by 500% from 25 hours to 5 hours, and capacity loss by 87%, thereby helping lower the costs. Liao shared that the company already has 2 to 3 years of production data that shows high market share.
Like every other leading company in the PV industry, Leadmicro is also getting perovskite ready.
For more presentation videos and conference summaries for all 4 days of the TaiyangNews High Efficiency Solar Technologies 2024 Conference, click here for days 1 and 2, and here for days 3 and 4.