星期六, 5 7 月, 2025
Home PV Technology Maxwell, SunDrive claim HJT cell ‘breakthrough’ after recording 26.07% efficiency in mass...

Maxwell, SunDrive claim HJT cell ‘breakthrough’ after recording 26.07% efficiency in mass production setting

Source:PVTECH

Heterojunction (HJT) equipment manufacturer Maxwell Technologies and Australian solar technology start-up SunDrive have laid claim to a breakthrough in mass production HJT technology after recording a conversion efficiency of 26.07% with a commercial-size solar PV cell.

Maxwell believes the result underlines the potential for HJT cells efficiencies to exceed 26% in a mass production setting. Image: Maxwell Technologies
The companies said the result “demonstrates the future potential for HJT solar cell efficiencies exceeding 26% in mass production”.
Testing a M6 (274.3cm2) cell, the trial has been officially verified by German’s Institute for Solar Energy Research (ISFH).
The two companies recorded a conversion efficiency of 25.54% in September last year and 25.05% during testing in May. They said the latest result was down to improvements in open-circuit voltage (Voc), short circuit current (Isc) and fill factor (FF).
They adopted Maxwell’s latest generation chemical vapor deposition (CVD) equipment for microcrystalline silicon layer deposition and a physical vapor deposition (PVD) coating process to create high mobility transparent conducting oxide (TCO) layers.
Maxwell said it believes HJT will be the “key technology for the sustainable future of the PV industry” and that the mass production efficiency of HJT cells could be improved further through an iterative upgrading process.
The two parties said they would continue to collaborate on exploring more solutions for the HJT industry in the fields of microcrystalline, TCO, metallisation and module interconnection.

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