Synchrotron x-ray characterization of alkali elements at grain boundaries in Cu(In, Ga)Se2 solar cells

Bradley West; Michael Stuckelberger; Harvey Guthrey; Lei Chen; Barry Lai; Jorg Maser; Volker Rose; James J. Dynes; William Shafarman; Mowafak Al-Jassim; Mariana Bertoni

doi:10.1109/PVSC.2016.7749403

Synchrotron x-ray characterization of alkali elements at grain boundaries in Cu(In, Ga)Se₂ solar cells

Bradley West, Michael Stuckelberger, Harvey Guthrey, Lei Chen, Barry Lai, Jorg Maser, Volker Rose, James J. Dynes, William Shafarman, Mowafak Al-Jassim, Mariana Bertoni

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

4 Scopus citations

Abstract

It is well known that the addition of alkali elements such as Na and K during and after growth of Cu(In, Ga)Se₂ (CIGS) has beneficial effects on the electronic properties of bulk material, improving device performance significantly. While the device level effects have been measured and reported, a direct observations of the localization of Na including its chemical nature are missing, and the impact of Na on elemental and phase segregation during CIGS growth is not fully understood. We investigate these aspects to shine light on the role of Na in CIGS solar cells with the ultimate goal of increasing their conversion efficiency. Utilizing a suite of synchrotron based x-ray characterization techniques, we discuss the challenges and advantages of these techniques for investigating segregation of main constituents of CIGS, Na distribution, chemical bonding of Na, and collection efficiency in CIGS as well as their correlations.

Original language	English (US)
Title of host publication	2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	31-34
Number of pages	4
ISBN (Electronic)	9781509027248
DOIs	https://doi.org/10.1109/PVSC.2016.7749403
State	Published - Nov 18 2016
Event	43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 - Portland, United States Duration: Jun 5 2016 → Jun 10 2016

Publication series

Name	Conference Record of the IEEE Photovoltaic Specialists Conference
Volume	2016-November
ISSN (Print)	0160-8371

Other

Other	43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
Country/Territory	United States
City	Portland
Period	6/5/16 → 6/10/16

Keywords

CIGS
Na
XRF
alkali
grain boundaries

ASJC Scopus subject areas

Control and Systems Engineering
Industrial and Manufacturing Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/PVSC.2016.7749403

Cite this

West, B., Stuckelberger, M., Guthrey, H., Chen, L., Lai, B., Maser, J., Rose, V., Dynes, J. J., Shafarman, W., Al-Jassim, M., & Bertoni, M. (2016). Synchrotron x-ray characterization of alkali elements at grain boundaries in Cu(In, Ga)Se₂ solar cells. In 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016 (pp. 31-34). Article 7749403 (Conference Record of the IEEE Photovoltaic Specialists Conference; Vol. 2016-November). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2016.7749403

Synchrotron x-ray characterization of alkali elements at grain boundaries in Cu(In, Ga)Se₂ solar cells. / West, Bradley; Stuckelberger, Michael; Guthrey, Harvey et al.
2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 31-34 7749403 (Conference Record of the IEEE Photovoltaic Specialists Conference; Vol. 2016-November).

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

West, B, Stuckelberger, M, Guthrey, H, Chen, L, Lai, B, Maser, J, Rose, V, Dynes, JJ, Shafarman, W, Al-Jassim, M & Bertoni, M 2016, Synchrotron x-ray characterization of alkali elements at grain boundaries in Cu(In, Ga)Se₂ solar cells. in 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016., 7749403, Conference Record of the IEEE Photovoltaic Specialists Conference, vol. 2016-November, Institute of Electrical and Electronics Engineers Inc., pp. 31-34, 43rd IEEE Photovoltaic Specialists Conference, PVSC 2016, Portland, United States, 6/5/16. https://doi.org/10.1109/PVSC.2016.7749403

West B, Stuckelberger M, Guthrey H, Chen L, Lai B, Maser J et al. Synchrotron x-ray characterization of alkali elements at grain boundaries in Cu(In, Ga)Se₂ solar cells. In 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 31-34. 7749403. (Conference Record of the IEEE Photovoltaic Specialists Conference). doi: 10.1109/PVSC.2016.7749403

West, Bradley ; Stuckelberger, Michael ; Guthrey, Harvey et al. / Synchrotron x-ray characterization of alkali elements at grain boundaries in Cu(In, Ga)Se₂ solar cells. 2016 IEEE 43rd Photovoltaic Specialists Conference, PVSC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 31-34 (Conference Record of the IEEE Photovoltaic Specialists Conference).

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