Transparent Conductive Oxide Bi-Layer as Front Contact for Multijunction Thin-Film Silicon Solar Cells

Federica Saitta; Prashand Kalpoe; Govind Padmakumar; Paula Perez-Rodriguez; Gianluca Limodio; Rudi Santbergen; Arno H.M. Smets

doi:10.1109/PVSC48320.2023.10359646

Transparent Conductive Oxide Bi-Layer as Front Contact for Multijunction Thin-Film Silicon Solar Cells

Federica Saitta, Prashand Kalpoe, Govind Padmakumar, Paula Perez-Rodriguez, Gianluca Limodio, Rudi Santbergen, Arno H.M. Smets

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

Transparent conductive oxides (TCOs) are used as front electrode of thin film silicon (TF-Si) solar cells to increase power conversion efficiency. Metal oxides doped with different materials can be deployed as TCO. The preferred TCO is usually selected using a trade-off between transparency and conductivity. This work proposes a bi-layer front contact to address the limitation of this trade-off. IOH and i-ZnO are chosen as the best candidates for such architecture due to their good opto-electrical properties. A thin layer of IOH ensures good lateral conductivity and high transparency in the visible part of the solar spectrum. An additional i-ZnO layer provides minimized parasitic absorption losses along with low transverse resistivity. The best opto-electrical properties are achieved when deposition temperature and power density are set at 25°C and 1.5 W/cm², 200°C and 2 W/cm² for IOH and i-ZnO respectively.

Original language	English
Title of host publication	2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023
Publisher	IEEE
Number of pages	3
ISBN (Electronic)	9781665460590
DOIs	https://doi.org/10.1109/PVSC48320.2023.10359646
Publication status	Published - 2023
Event	50th IEEE Photovoltaic Specialists Conference, PVSC 2023 - San Juan, United States Duration: 11 Jun 2023 → 16 Jun 2023

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)	0160-8371

Conference

Conference	50th IEEE Photovoltaic Specialists Conference, PVSC 2023
Country/Territory	United States
City	San Juan
Period	11/06/23 → 16/06/23

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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Transparent_Conductive_Oxide_Bi-Layer_as_Front_Contact_for_Multijunction_Thin-Film_Silicon_Solar_CellsFinal published version, 729 KB

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Saitta, F., Kalpoe, P., Padmakumar, G., Perez-Rodriguez, P., Limodio, G., Santbergen, R., & Smets, A. H. M. (2023). Transparent Conductive Oxide Bi-Layer as Front Contact for Multijunction Thin-Film Silicon Solar Cells. In 2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023 (Conference Record of the IEEE Photovoltaic Specialists Conference). IEEE. https://doi.org/10.1109/PVSC48320.2023.10359646

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title = "Transparent Conductive Oxide Bi-Layer as Front Contact for Multijunction Thin-Film Silicon Solar Cells",

abstract = "Transparent conductive oxides (TCOs) are used as front electrode of thin film silicon (TF-Si) solar cells to increase power conversion efficiency. Metal oxides doped with different materials can be deployed as TCO. The preferred TCO is usually selected using a trade-off between transparency and conductivity. This work proposes a bi-layer front contact to address the limitation of this trade-off. IOH and i-ZnO are chosen as the best candidates for such architecture due to their good opto-electrical properties. A thin layer of IOH ensures good lateral conductivity and high transparency in the visible part of the solar spectrum. An additional i-ZnO layer provides minimized parasitic absorption losses along with low transverse resistivity. The best opto-electrical properties are achieved when deposition temperature and power density are set at 25°C and 1.5 W/cm2, 200°C and 2 W/cm2 for IOH and i-ZnO respectively.",

author = "Federica Saitta and Prashand Kalpoe and Govind Padmakumar and Paula Perez-Rodriguez and Gianluca Limodio and Rudi Santbergen and Smets, {Arno H.M.}",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ; 50th IEEE Photovoltaic Specialists Conference, PVSC 2023 ; Conference date: 11-06-2023 Through 16-06-2023",

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Saitta, F, Kalpoe, P, Padmakumar, G, Perez-Rodriguez, P, Limodio, G , Santbergen, R & Smets, AHM 2023, Transparent Conductive Oxide Bi-Layer as Front Contact for Multijunction Thin-Film Silicon Solar Cells. in 2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023. Conference Record of the IEEE Photovoltaic Specialists Conference, IEEE, 50th IEEE Photovoltaic Specialists Conference, PVSC 2023, San Juan, United States, 11/06/23. https://doi.org/10.1109/PVSC48320.2023.10359646

Transparent Conductive Oxide Bi-Layer as Front Contact for Multijunction Thin-Film Silicon Solar Cells. / Saitta, Federica; Kalpoe, Prashand; Padmakumar, Govind et al.
2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023. IEEE, 2023. (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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AU - Kalpoe, Prashand

AU - Padmakumar, Govind

AU - Perez-Rodriguez, Paula

AU - Limodio, Gianluca

AU - Santbergen, Rudi

AU - Smets, Arno H.M.

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2023

Y1 - 2023

N2 - Transparent conductive oxides (TCOs) are used as front electrode of thin film silicon (TF-Si) solar cells to increase power conversion efficiency. Metal oxides doped with different materials can be deployed as TCO. The preferred TCO is usually selected using a trade-off between transparency and conductivity. This work proposes a bi-layer front contact to address the limitation of this trade-off. IOH and i-ZnO are chosen as the best candidates for such architecture due to their good opto-electrical properties. A thin layer of IOH ensures good lateral conductivity and high transparency in the visible part of the solar spectrum. An additional i-ZnO layer provides minimized parasitic absorption losses along with low transverse resistivity. The best opto-electrical properties are achieved when deposition temperature and power density are set at 25°C and 1.5 W/cm2, 200°C and 2 W/cm2 for IOH and i-ZnO respectively.

AB - Transparent conductive oxides (TCOs) are used as front electrode of thin film silicon (TF-Si) solar cells to increase power conversion efficiency. Metal oxides doped with different materials can be deployed as TCO. The preferred TCO is usually selected using a trade-off between transparency and conductivity. This work proposes a bi-layer front contact to address the limitation of this trade-off. IOH and i-ZnO are chosen as the best candidates for such architecture due to their good opto-electrical properties. A thin layer of IOH ensures good lateral conductivity and high transparency in the visible part of the solar spectrum. An additional i-ZnO layer provides minimized parasitic absorption losses along with low transverse resistivity. The best opto-electrical properties are achieved when deposition temperature and power density are set at 25°C and 1.5 W/cm2, 200°C and 2 W/cm2 for IOH and i-ZnO respectively.

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T3 - Conference Record of the IEEE Photovoltaic Specialists Conference

BT - 2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023

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T2 - 50th IEEE Photovoltaic Specialists Conference, PVSC 2023

Y2 - 11 June 2023 through 16 June 2023

ER -

Saitta F, Kalpoe P, Padmakumar G, Perez-Rodriguez P, Limodio G , Santbergen R et al. Transparent Conductive Oxide Bi-Layer as Front Contact for Multijunction Thin-Film Silicon Solar Cells. In 2023 IEEE 50th Photovoltaic Specialists Conference, PVSC 2023. IEEE. 2023. (Conference Record of the IEEE Photovoltaic Specialists Conference). doi: 10.1109/PVSC48320.2023.10359646

Transparent Conductive Oxide Bi-Layer as Front Contact for Multijunction Thin-Film Silicon Solar Cells

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