Excellent ONO passivation on phosphorus and boron diffusion demonstrating a 25% efficient IBC solar cell

Teng Choon Kho; Kean Chern Fong; Matthew Stocks; Keith McIntosh; Evan Franklin; Sieu Pheng Phang; Wensheng Liang; Andrew Blakers

doi:10.1002/pip.3310

Excellent ONO passivation on phosphorus and boron diffusion demonstrating a 25% efficient IBC solar cell

Teng Choon Kho, Kean Chern Fong^*, Matthew Stocks, Keith McIntosh, Evan Franklin, Sieu Pheng Phang, Wensheng Liang, Andrew Blakers

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

This work presents results of a laboratory-scale interdigitated back contact (IBC) solar cell with an independently measured efficiency of 25.0%, featuring open-circuit voltage of 716 mV, short-circuit current of 43.0 mA.cm⁻² and fill factor of 81.0%. Notably, the high efficiency was achieved based on significant improvements resulting from the optimised cell structure, excellent SiO₂-SiN_x-SiO_x (ONO) surface passivation, detailed bulk lifetime management strategy and improved random pyramid texturing. Experimental details and analysis of the individual improvements over prior work are presented in-depth.

Original language	English
Pages (from-to)	1034-1044
Number of pages	11
Journal	Progress in Photovoltaics: Research and Applications
Volume	28
Issue number	10
DOIs	https://doi.org/10.1002/pip.3310
Publication status	Published - 1 Oct 2020

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10.1002/pip.3310

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title = "Excellent ONO passivation on phosphorus and boron diffusion demonstrating a 25% efficient IBC solar cell",

abstract = "This work presents results of a laboratory-scale interdigitated back contact (IBC) solar cell with an independently measured efficiency of 25.0%, featuring open-circuit voltage of 716 mV, short-circuit current of 43.0 mA.cm−2 and fill factor of 81.0%. Notably, the high efficiency was achieved based on significant improvements resulting from the optimised cell structure, excellent SiO2-SiNx-SiOx (ONO) surface passivation, detailed bulk lifetime management strategy and improved random pyramid texturing. Experimental details and analysis of the individual improvements over prior work are presented in-depth.",

keywords = "IBC, ONO, corona charge, gettering, high efficiency, surface passivation",

author = "Kho, {Teng Choon} and Fong, {Kean Chern} and Matthew Stocks and Keith McIntosh and Evan Franklin and Phang, {Sieu Pheng} and Wensheng Liang and Andrew Blakers",

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AU - Kho, Teng Choon

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AU - Stocks, Matthew

AU - McIntosh, Keith

AU - Franklin, Evan

AU - Phang, Sieu Pheng

AU - Liang, Wensheng

AU - Blakers, Andrew

PY - 2020/10/1

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N2 - This work presents results of a laboratory-scale interdigitated back contact (IBC) solar cell with an independently measured efficiency of 25.0%, featuring open-circuit voltage of 716 mV, short-circuit current of 43.0 mA.cm−2 and fill factor of 81.0%. Notably, the high efficiency was achieved based on significant improvements resulting from the optimised cell structure, excellent SiO2-SiNx-SiOx (ONO) surface passivation, detailed bulk lifetime management strategy and improved random pyramid texturing. Experimental details and analysis of the individual improvements over prior work are presented in-depth.

AB - This work presents results of a laboratory-scale interdigitated back contact (IBC) solar cell with an independently measured efficiency of 25.0%, featuring open-circuit voltage of 716 mV, short-circuit current of 43.0 mA.cm−2 and fill factor of 81.0%. Notably, the high efficiency was achieved based on significant improvements resulting from the optimised cell structure, excellent SiO2-SiNx-SiOx (ONO) surface passivation, detailed bulk lifetime management strategy and improved random pyramid texturing. Experimental details and analysis of the individual improvements over prior work are presented in-depth.

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KW - high efficiency

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JO - Progress in Photovoltaics: Research and Applications

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Excellent ONO passivation on phosphorus and boron diffusion demonstrating a 25% efficient IBC solar cell

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