An innovative concentrator system based on Cu(In,Ga)Se2 microcells

Myriam Paire; Laurent Lombez; Stéphane Collin; Jean Luc Pelouard; Daniel Lincot; Jean François Guillemoles

doi:10.1109/PVSC.2014.6925545

An innovative concentrator system based on Cu(In,Ga)Se₂ microcells

Myriam Paire
, Laurent Lombez
, Stéphane Collin
, Jean Luc Pelouard
, Daniel Lincot
, Jean François Guillemoles

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

Abstract

In this work we look at a new type of concentrator photovoltaic material, Cu(In,Ga)Se₂. Cu(In,Ga)Se₂ solar cells are polycrystalline thin film devices, that can be deposited by a variety of techniques. A few concentrating experiments were carried out[1]-[3], but limited to low concentrations to avoid excessive heating of these cells grown on glass substrate, and spreading losses in the ZnO:Al window layer (10 - 40 ohm/sq). We proposed to use a microcell architecture [4], [5], with lateral dimension varying from a few μm to hundreds of μm, to overcome these limitations. We show here that Cu(In,Ga)Se₂ devices can work well without detrimental signals from the edges up to very small sizes (10^-5 cm²). The lower crystallographic quality of the Cu(In,Ga)Se₂ cells may well be in fact an advantage to go micrometric devices A 5% absolute efficiency increase on Cu(In,Ga)Se₂ microcells at 475 suns is observed. V_oc increases up to several thousand suns, temperature increment stays under 20°C at 1000 suns. Features of the high illumination regime are highlighted and modeled.

Original language	English
Title of host publication	2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2930-2933
Number of pages	4
ISBN (Electronic)	9781479943982
DOIs	https://doi.org/10.1109/PVSC.2014.6925545
Publication status	Published - 15 Oct 2014
Event	40th IEEE Photovoltaic Specialist Conference, PVSC 2014 - Denver, United States Duration: 8 Jun 2014 → 13 Jun 2014

Publication series

Name	2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014

Conference

Conference	40th IEEE Photovoltaic Specialist Conference, PVSC 2014
Country/Territory	United States
City	Denver
Period	8/06/14 → 13/06/14

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Cu(In,Ga)Se
Current-voltage characteristics
coévaporation
electrodeposition
inhomogeneities
photovoltaic cells

Access to Document

10.1109/PVSC.2014.6925545

Cite this

Paire, M., Lombez, L., Collin, S., Pelouard, J. L., Lincot, D., & Guillemoles, J. F. (2014). An innovative concentrator system based on Cu(In,Ga)Se₂ microcells. In 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014 (pp. 2930-2933). Article 6925545 (2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2014.6925545

@inproceedings{1fe3d36262ab49058b81caca91a2a188,

title = "An innovative concentrator system based on Cu(In,Ga)Se2 microcells",

abstract = "In this work we look at a new type of concentrator photovoltaic material, Cu(In,Ga)Se2. Cu(In,Ga)Se2 solar cells are polycrystalline thin film devices, that can be deposited by a variety of techniques. A few concentrating experiments were carried out[1]-[3], but limited to low concentrations to avoid excessive heating of these cells grown on glass substrate, and spreading losses in the ZnO:Al window layer (10 - 40 ohm/sq). We proposed to use a microcell architecture [4], [5], with lateral dimension varying from a few μm to hundreds of μm, to overcome these limitations. We show here that Cu(In,Ga)Se2 devices can work well without detrimental signals from the edges up to very small sizes (10-5 cm2). The lower crystallographic quality of the Cu(In,Ga)Se2 cells may well be in fact an advantage to go micrometric devices A 5\% absolute efficiency increase on Cu(In,Ga)Se2 microcells at 475 suns is observed. Voc increases up to several thousand suns, temperature increment stays under 20°C at 1000 suns. Features of the high illumination regime are highlighted and modeled.",

keywords = "Cu(In,Ga)Se, Current-voltage characteristics, co{\'e}vaporation, electrodeposition, inhomogeneities, photovoltaic cells",

author = "Myriam Paire and Laurent Lombez and St{\'e}phane Collin and Pelouard, \{Jean Luc\} and Daniel Lincot and Guillemoles, \{Jean Fran{\c c}ois\}",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 40th IEEE Photovoltaic Specialist Conference, PVSC 2014 ; Conference date: 08-06-2014 Through 13-06-2014",

year = "2014",

month = oct,

day = "15",

doi = "10.1109/PVSC.2014.6925545",

language = "English",

series = "2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014",

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

pages = "2930--2933",

booktitle = "2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014",

}

Paire, M, Lombez, L, Collin, S, Pelouard, JL, Lincot, D & Guillemoles, JF 2014, An innovative concentrator system based on Cu(In,Ga)Se₂ microcells. in 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014., 6925545, 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014, Institute of Electrical and Electronics Engineers Inc., pp. 2930-2933, 40th IEEE Photovoltaic Specialist Conference, PVSC 2014, Denver, United States, 8/06/14. https://doi.org/10.1109/PVSC.2014.6925545

An innovative concentrator system based on Cu(In,Ga)Se₂ microcells. / Paire, Myriam; Lombez, Laurent; Collin, Stéphane et al.
2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 2930-2933 6925545 (2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014).

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

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T1 - An innovative concentrator system based on Cu(In,Ga)Se2 microcells

AU - Paire, Myriam

AU - Lombez, Laurent

AU - Collin, Stéphane

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AU - Guillemoles, Jean François

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N2 - In this work we look at a new type of concentrator photovoltaic material, Cu(In,Ga)Se2. Cu(In,Ga)Se2 solar cells are polycrystalline thin film devices, that can be deposited by a variety of techniques. A few concentrating experiments were carried out[1]-[3], but limited to low concentrations to avoid excessive heating of these cells grown on glass substrate, and spreading losses in the ZnO:Al window layer (10 - 40 ohm/sq). We proposed to use a microcell architecture [4], [5], with lateral dimension varying from a few μm to hundreds of μm, to overcome these limitations. We show here that Cu(In,Ga)Se2 devices can work well without detrimental signals from the edges up to very small sizes (10-5 cm2). The lower crystallographic quality of the Cu(In,Ga)Se2 cells may well be in fact an advantage to go micrometric devices A 5% absolute efficiency increase on Cu(In,Ga)Se2 microcells at 475 suns is observed. Voc increases up to several thousand suns, temperature increment stays under 20°C at 1000 suns. Features of the high illumination regime are highlighted and modeled.

AB - In this work we look at a new type of concentrator photovoltaic material, Cu(In,Ga)Se2. Cu(In,Ga)Se2 solar cells are polycrystalline thin film devices, that can be deposited by a variety of techniques. A few concentrating experiments were carried out[1]-[3], but limited to low concentrations to avoid excessive heating of these cells grown on glass substrate, and spreading losses in the ZnO:Al window layer (10 - 40 ohm/sq). We proposed to use a microcell architecture [4], [5], with lateral dimension varying from a few μm to hundreds of μm, to overcome these limitations. We show here that Cu(In,Ga)Se2 devices can work well without detrimental signals from the edges up to very small sizes (10-5 cm2). The lower crystallographic quality of the Cu(In,Ga)Se2 cells may well be in fact an advantage to go micrometric devices A 5% absolute efficiency increase on Cu(In,Ga)Se2 microcells at 475 suns is observed. Voc increases up to several thousand suns, temperature increment stays under 20°C at 1000 suns. Features of the high illumination regime are highlighted and modeled.

KW - Cu(In,Ga)Se

KW - Current-voltage characteristics

KW - coévaporation

KW - electrodeposition

KW - inhomogeneities

KW - photovoltaic cells

U2 - 10.1109/PVSC.2014.6925545

DO - 10.1109/PVSC.2014.6925545

M3 - Conference contribution

AN - SCOPUS:84912116055

T3 - 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014

SP - 2930

EP - 2933

BT - 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 40th IEEE Photovoltaic Specialist Conference, PVSC 2014

Y2 - 8 June 2014 through 13 June 2014

ER -

Paire M, Lombez L, Collin S, Pelouard JL, Lincot D, Guillemoles JF. An innovative concentrator system based on Cu(In,Ga)Se₂ microcells. In 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 2930-2933. 6925545. (2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014). doi: 10.1109/PVSC.2014.6925545