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- W1971720569 abstract "Full-size (156 ×156 mm <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sup> ) interdigitated back contact (IBC) solar cells have been developed with conventional industry processes. With PC1D simulation and short-flow experiment verification, we found that the tunnel junction shunting of rear n <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>+</sup> /p <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>+</sup> could be mitigated significantly by controlling the boron surface concentration; therefore, it is not necessary to form a gap between rear emitter and back surface field. Made by a novel yet relative simple process, the IBC cells preliminarily achieved 19.65% best efficiency with J <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>sc</sub> and V <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>oc</sub> as high as 40.5 mA/cm <sup xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>2</sup> and 655 mV, respectively, while FF was only 73.9% due to the low pseudo fill factor (Pff) and high series resistance. Through the optimization of the rear pattern process, Pff was improved up to 82.5% and FF up to 77%. With further optimization of emitter, front surface field, passivation, and rear pattern design, the cells potentially can achieve up to 22.0% efficiency in the near future." @default.
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- W1971720569 date "2014-01-01" @default.
- W1971720569 modified "2023-09-24" @default.
- W1971720569 title "High-Efficiency Full Back Contacted Cells Using Industrial Processes" @default.
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- W1971720569 doi "https://doi.org/10.1109/jphotov.2013.2285623" @default.
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