Ultra-thin CIGS: 2D Modelling and impactful results for optimal cell design and characterizations

Jackson Lontchi; Maria Zhukova; Milan Kovacic; Janez Krc; Wei Chao Chen; Marika Edoff; Sourav Bose; Pedro Salome; Julie Goffard; Andrea Cattoni; Stephane Collin; Denis Flandre

doi:10.1109/PVSC45281.2020.9300453

Ultra-thin CIGS: 2D Modelling and impactful results for optimal cell design and characterizations

Jackson Lontchi, Maria Zhukova, Milan Kovacic, Janez Krc, Wei Chao Chen, Marika Edoff, Sourav Bose, Pedro Salome, Julie Goffard, Andrea Cattoni, Stephane Collin, Denis Flandre

University of Louvain

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We present a 2D model of an Al2O3-passivated ultrathin Cu(In, Ga)Se2 photovoltaic cell with rear-contact pattern. Simulation results follow the experimental trends, highlighting the significant effects of the passivation quality and of the Mo/CIGS contact resistance. Improvements in Jsc and Voc are discussed for different sizes of openings, relative to an excellent passivation quality (i.e. high density of negative charges in the passivation layer). However, a degradation is predicted for a poor passivation (i.e. low density of such charges) or a high contact resistance. We point out an optimum in efficiency when varying the opening widths at fixed hole-pitch and fixed contact resistance for a width to pitch ratio around 0.2. These simulation results provide significant insights for optimal cell design and characterizations of passivated UT-CIGS PV cells.

Original language	English
Title of host publication	2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	699-700
Number of pages	2
ISBN (Electronic)	9781728161150
DOIs	https://doi.org/10.1109/PVSC45281.2020.9300453
Publication status	Published - 14 Jun 2020
Externally published	Yes
Event	47th IEEE Photovoltaic Specialists Conference, PVSC 2020 - Calgary, Canada Duration: 15 Jun 2020 → 21 Aug 2020

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
Volume	2020-June
ISSN (Print)	0160-8371

Conference

Conference	47th IEEE Photovoltaic Specialists Conference, PVSC 2020
Country/Territory	Canada
City	Calgary
Period	15/06/20 → 21/08/20

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

2D modelling
Ultra-thin CIGS
passivation
rear-contact pattern

Access to Document

10.1109/PVSC45281.2020.9300453

Cite this

Lontchi, J., Zhukova, M., Kovacic, M., Krc, J., Chen, W. C., Edoff, M., Bose, S., Salome, P., Goffard, J., Cattoni, A., Collin, S., & Flandre, D. (2020). Ultra-thin CIGS: 2D Modelling and impactful results for optimal cell design and characterizations. In 2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020 (pp. 699-700). Article 9300453 (Conference Record of the IEEE Photovoltaic Specialists Conference; Vol. 2020-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC45281.2020.9300453

@inproceedings{f52e1ce621c345f08b3835d115660d7b,

title = "Ultra-thin CIGS: 2D Modelling and impactful results for optimal cell design and characterizations",

abstract = "We present a 2D model of an Al2O3-passivated ultrathin Cu(In, Ga)Se2 photovoltaic cell with rear-contact pattern. Simulation results follow the experimental trends, highlighting the significant effects of the passivation quality and of the Mo/CIGS contact resistance. Improvements in Jsc and Voc are discussed for different sizes of openings, relative to an excellent passivation quality (i.e. high density of negative charges in the passivation layer). However, a degradation is predicted for a poor passivation (i.e. low density of such charges) or a high contact resistance. We point out an optimum in efficiency when varying the opening widths at fixed hole-pitch and fixed contact resistance for a width to pitch ratio around 0.2. These simulation results provide significant insights for optimal cell design and characterizations of passivated UT-CIGS PV cells.",

keywords = "2D modelling, Ultra-thin CIGS, passivation, rear-contact pattern",

author = "Jackson Lontchi and Maria Zhukova and Milan Kovacic and Janez Krc and Chen, \{Wei Chao\} and Marika Edoff and Sourav Bose and Pedro Salome and Julie Goffard and Andrea Cattoni and Stephane Collin and Denis Flandre",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 47th IEEE Photovoltaic Specialists Conference, PVSC 2020 ; Conference date: 15-06-2020 Through 21-08-2020",

year = "2020",

month = jun,

day = "14",

doi = "10.1109/PVSC45281.2020.9300453",

language = "English",

series = "Conference Record of the IEEE Photovoltaic Specialists Conference",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "699--700",

booktitle = "2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020",

}

Lontchi, J, Zhukova, M, Kovacic, M, Krc, J, Chen, WC, Edoff, M, Bose, S, Salome, P, Goffard, J, Cattoni, A, Collin, S & Flandre, D 2020, Ultra-thin CIGS: 2D Modelling and impactful results for optimal cell design and characterizations. in 2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020., 9300453, Conference Record of the IEEE Photovoltaic Specialists Conference, vol. 2020-June, Institute of Electrical and Electronics Engineers Inc., pp. 699-700, 47th IEEE Photovoltaic Specialists Conference, PVSC 2020, Calgary, Canada, 15/06/20. https://doi.org/10.1109/PVSC45281.2020.9300453

Ultra-thin CIGS: 2D Modelling and impactful results for optimal cell design and characterizations. / Lontchi, Jackson; Zhukova, Maria; Kovacic, Milan et al.
2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 699-700 9300453 (Conference Record of the IEEE Photovoltaic Specialists Conference; Vol. 2020-June).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Ultra-thin CIGS

T2 - 47th IEEE Photovoltaic Specialists Conference, PVSC 2020

AU - Lontchi, Jackson

AU - Zhukova, Maria

AU - Kovacic, Milan

AU - Krc, Janez

AU - Chen, Wei Chao

AU - Edoff, Marika

AU - Bose, Sourav

AU - Salome, Pedro

AU - Goffard, Julie

AU - Cattoni, Andrea

AU - Collin, Stephane

AU - Flandre, Denis

PY - 2020/6/14

Y1 - 2020/6/14

N2 - We present a 2D model of an Al2O3-passivated ultrathin Cu(In, Ga)Se2 photovoltaic cell with rear-contact pattern. Simulation results follow the experimental trends, highlighting the significant effects of the passivation quality and of the Mo/CIGS contact resistance. Improvements in Jsc and Voc are discussed for different sizes of openings, relative to an excellent passivation quality (i.e. high density of negative charges in the passivation layer). However, a degradation is predicted for a poor passivation (i.e. low density of such charges) or a high contact resistance. We point out an optimum in efficiency when varying the opening widths at fixed hole-pitch and fixed contact resistance for a width to pitch ratio around 0.2. These simulation results provide significant insights for optimal cell design and characterizations of passivated UT-CIGS PV cells.

AB - We present a 2D model of an Al2O3-passivated ultrathin Cu(In, Ga)Se2 photovoltaic cell with rear-contact pattern. Simulation results follow the experimental trends, highlighting the significant effects of the passivation quality and of the Mo/CIGS contact resistance. Improvements in Jsc and Voc are discussed for different sizes of openings, relative to an excellent passivation quality (i.e. high density of negative charges in the passivation layer). However, a degradation is predicted for a poor passivation (i.e. low density of such charges) or a high contact resistance. We point out an optimum in efficiency when varying the opening widths at fixed hole-pitch and fixed contact resistance for a width to pitch ratio around 0.2. These simulation results provide significant insights for optimal cell design and characterizations of passivated UT-CIGS PV cells.

KW - 2D modelling

KW - Ultra-thin CIGS

KW - passivation

KW - rear-contact pattern

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DO - 10.1109/PVSC45281.2020.9300453

M3 - Conference contribution

AN - SCOPUS:85099556942

T3 - Conference Record of the IEEE Photovoltaic Specialists Conference

SP - 699

EP - 700

BT - 2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020

PB - Institute of Electrical and Electronics Engineers Inc.

Y2 - 15 June 2020 through 21 August 2020

ER -

Lontchi J, Zhukova M, Kovacic M, Krc J, Chen WC, Edoff M et al. Ultra-thin CIGS: 2D Modelling and impactful results for optimal cell design and characterizations. In 2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 699-700. 9300453. (Conference Record of the IEEE Photovoltaic Specialists Conference). doi: 10.1109/PVSC45281.2020.9300453

Ultra-thin CIGS: 2D Modelling and impactful results for optimal cell design and characterizations

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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Cite this