RESEARCH PROGRESS OF CRYSTALLINE SILICON HETEROJUNCTION SOLAR CELLS WITH METAL OXIDE CARRIER-SELECTIVE CONTACTS

Hu Mengqi; Su Ju; Wang Guanghong; Diao Hongwei; Zhao Lei; Wang Wenjing

doi:10.19912/j.0254-0096.tynxb.2023-1755

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (3) : 342-347. DOI: 10.19912/j.0254-0096.tynxb.2023-1755

RESEARCH PROGRESS OF CRYSTALLINE SILICON HETEROJUNCTION SOLAR CELLS WITH METAL OXIDE CARRIER-SELECTIVE CONTACTS

Hu Mengqi^1,2, Su Ju^1,2, Wang Guanghong^1,2, Diao Hongwei¹, Zhao Lei^1,2, Wang Wenjing^1~3

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Abstract

The conversion efficiency of crystalline silicon heterojunction （HJT） solar cells has reached 26.81%, however, there are unavoidable parasitic absorption losses in their transport layer doped with toxic and hazardous gases, preventing further improvement of device performance. Therefore, wide bandgap dopant-free passivated contact solar cells have received great attention. This paper provides an overview of the carrier-selective transport principle, dopant-free passivated contact materials and their main deposition methods, the current research status of dopant-free hole/electron-selective materials and the improvement of device stability. The problems and prospects of passivation contact type dopant-free crystalline silicon heterojunction solar cells are also discussed.

Key words

carrier transport / transition metal oxides / silicon solar cells / carrier-selective contacts / heterojunction solar cells / dopant-free

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Hu Mengqi, Su Ju, Wang Guanghong, Diao Hongwei, Zhao Lei, Wang Wenjing. RESEARCH PROGRESS OF CRYSTALLINE SILICON HETEROJUNCTION SOLAR CELLS WITH METAL OXIDE CARRIER-SELECTIVE CONTACTS[J]. Acta Energiae Solaris Sinica. 2025, 46(3): 342-347 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1755

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