Maskless fabrication of quasi-omnidirectional V-groove solar cells using an alkaline solution-based method (2024)

Chen, X., Wang, Y., Chen, W., Liu, Y., Xing, G., Feng, B., Li, H., Sun, Z., & Du, X. (2023). Maskless fabrication of quasi-omnidirectional V-groove solar cells using an alkaline solution-based method. Chinese Physics B, 33(1), Article 018801. https://doi.org/10.1088/1674-1056/ad0cd0

Chen, Xingqian ; Wang, Yan ; Chen, Wei et al. / Maskless fabrication of quasi-omnidirectional V-groove solar cells using an alkaline solution-based method. In: Chinese Physics B. 2023 ; Vol. 33, No. 1.

@article{c0b3e1a4a3474bdd9079d9c7ffd9955c,

title = "Maskless fabrication of quasi-omnidirectional V-groove solar cells using an alkaline solution-based method",

abstract = "Silicon passivated emitter and rear contact (PERC) solar cells with V-groove texture were fabricated using maskless alkaline solution etching with in-house developed additive. Compared with the traditional pyramid texture, the V-groove texture possesses superior effective minority carrier lifetime, enhanced p-n junction quality and better applied filling factor (FF). In addition, a V-groove texture can greatly reduce the shading area and edge damage of front Ag electrodes when the V-groove direction is parallel to the gridline electrodes. Due to these factors, the V-groove solar cells have a higher efficiency (21.78%) than pyramid solar cells (21.62%). Interestingly, external quantum efficiency (EQE) and reflectance of the V-groove solar cells exhibit a slight decrease when the incident light angle (θ) is increased from 0◦ to 75◦, which confirms the excellent quasi omnidirectionality of the V-groove solar cells. The proposed V-groove solar cell design shows a 2.84% relative enhancement of energy output over traditional pyramid solar cells.",

keywords = "V-groove, alkaline etching, quasi omnidirectionality, silicon solar cell",

author = "Xingqian Chen and Yan Wang and Wei Chen and Yaoping Liu and Guoguang Xing and Bowen Feng and Haozhen Li and Zongheng Sun and Xiaolong Du",

note = "Publisher Copyright: {\textcopyright} 2024 Chinese Physical Society and IOP Publishing Ltd.",

year = "2023",

month = dec,

day = "1",

doi = "10.1088/1674-1056/ad0cd0",

language = "English",

volume = "33",

journal = "Chinese Physics B",

issn = "1674-1056",

publisher = "IOP Publishing",

number = "1",

}

Chen, X, Wang, Y, Chen, W, Liu, Y, Xing, G, Feng, B, Li, H, Sun, Z & Du, X 2023, 'Maskless fabrication of quasi-omnidirectional V-groove solar cells using an alkaline solution-based method', Chinese Physics B, vol. 33, no. 1, 018801. https://doi.org/10.1088/1674-1056/ad0cd0

Maskless fabrication of quasi-omnidirectional V-groove solar cells using an alkaline solution-based method. / Chen, Xingqian; Wang, Yan; Chen, Wei et al.
In: Chinese Physics B, Vol. 33, No. 1, 018801, 01.12.2023.

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

TY - JOUR

T1 - Maskless fabrication of quasi-omnidirectional V-groove solar cells using an alkaline solution-based method

AU - Chen, Xingqian

AU - Wang, Yan

AU - Chen, Wei

AU - Liu, Yaoping

AU - Xing, Guoguang

AU - Feng, Bowen

AU - Li, Haozhen

AU - Sun, Zongheng

AU - Du, Xiaolong

N1 - Publisher Copyright:© 2024 Chinese Physical Society and IOP Publishing Ltd.

PY - 2023/12/1

Y1 - 2023/12/1

N2 - Silicon passivated emitter and rear contact (PERC) solar cells with V-groove texture were fabricated using maskless alkaline solution etching with in-house developed additive. Compared with the traditional pyramid texture, the V-groove texture possesses superior effective minority carrier lifetime, enhanced p-n junction quality and better applied filling factor (FF). In addition, a V-groove texture can greatly reduce the shading area and edge damage of front Ag electrodes when the V-groove direction is parallel to the gridline electrodes. Due to these factors, the V-groove solar cells have a higher efficiency (21.78%) than pyramid solar cells (21.62%). Interestingly, external quantum efficiency (EQE) and reflectance of the V-groove solar cells exhibit a slight decrease when the incident light angle (θ) is increased from 0◦ to 75◦, which confirms the excellent quasi omnidirectionality of the V-groove solar cells. The proposed V-groove solar cell design shows a 2.84% relative enhancement of energy output over traditional pyramid solar cells.

AB - Silicon passivated emitter and rear contact (PERC) solar cells with V-groove texture were fabricated using maskless alkaline solution etching with in-house developed additive. Compared with the traditional pyramid texture, the V-groove texture possesses superior effective minority carrier lifetime, enhanced p-n junction quality and better applied filling factor (FF). In addition, a V-groove texture can greatly reduce the shading area and edge damage of front Ag electrodes when the V-groove direction is parallel to the gridline electrodes. Due to these factors, the V-groove solar cells have a higher efficiency (21.78%) than pyramid solar cells (21.62%). Interestingly, external quantum efficiency (EQE) and reflectance of the V-groove solar cells exhibit a slight decrease when the incident light angle (θ) is increased from 0◦ to 75◦, which confirms the excellent quasi omnidirectionality of the V-groove solar cells. The proposed V-groove solar cell design shows a 2.84% relative enhancement of energy output over traditional pyramid solar cells.

KW - V-groove

KW - alkaline etching

KW - quasi omnidirectionality

KW - silicon solar cell

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DO - 10.1088/1674-1056/ad0cd0

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SN - 1674-1056

VL - 33

JO - Chinese Physics B

JF - Chinese Physics B

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ER -

Chen X, Wang Y, Chen W, Liu Y, Xing G, Feng B et al. Maskless fabrication of quasi-omnidirectional V-groove solar cells using an alkaline solution-based method. Chinese Physics B. 2023 Dec 1;33(1):018801. doi: 10.1088/1674-1056/ad0cd0