Multimodal X-ray imaging of grain-level properties and performance in a polycrystalline solar cell

A. Ulvestad, S. O. Hruszkewycz, M. V. Holt, M. O. Hill, I. Calvo-Almazán, S. Maddali, X. Huang, H. Yan, E. Nazaretski, Y. S. Chu, L. J. Lauhon, N. Rodkey, Mariana Bertoni, M. E. Stuckelberger

Research output: Contribution to journalArticle

Abstract

The factors limiting the performance of alternative polycrystalline solar cells as compared with their single-crystal counterparts are not fully understood, but are thought to originate from structural and chemical heterogeneities at various length scales. Here, it is demonstrated that multimodal focused nanobeam X-ray microscopy can be used to reveal multiple aspects of the problem in a single measurement by mapping chemical makeup, lattice structure and charge collection efficiency simultaneously in a working solar cell. This approach was applied to micrometre-sized individual grains in a Cu(In,Ga)Se2 polycrystalline film packaged in a working device. It was found that, near grain boundaries, collection efficiency is increased, and that in these regions the lattice parameter of the material is expanded. These observations are discussed in terms of possible physical models and future experiments.

Original languageEnglish (US)
JournalJournal of synchrotron radiation
DOIs
StatePublished - Jan 1 2019

Fingerprint

Solar cells
solar cells
Imaging techniques
X rays
Lattice constants
micrometers
lattice parameters
Microscopic examination
Grain boundaries
x rays
grain boundaries
Single crystals
microscopy
single crystals
Experiments

Keywords

  • multimodal characterization
  • scanning nanodiffraction
  • solar cell materials
  • X-ray-beam-induced current

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Ulvestad, A., Hruszkewycz, S. O., Holt, M. V., Hill, M. O., Calvo-Almazán, I., Maddali, S., ... Stuckelberger, M. E. (2019). Multimodal X-ray imaging of grain-level properties and performance in a polycrystalline solar cell. Journal of synchrotron radiation. https://doi.org/10.1107/S1600577519003606

Multimodal X-ray imaging of grain-level properties and performance in a polycrystalline solar cell. / Ulvestad, A.; Hruszkewycz, S. O.; Holt, M. V.; Hill, M. O.; Calvo-Almazán, I.; Maddali, S.; Huang, X.; Yan, H.; Nazaretski, E.; Chu, Y. S.; Lauhon, L. J.; Rodkey, N.; Bertoni, Mariana; Stuckelberger, M. E.

In: Journal of synchrotron radiation, 01.01.2019.

Research output: Contribution to journalArticle

Ulvestad, A, Hruszkewycz, SO, Holt, MV, Hill, MO, Calvo-Almazán, I, Maddali, S, Huang, X, Yan, H, Nazaretski, E, Chu, YS, Lauhon, LJ, Rodkey, N, Bertoni, M & Stuckelberger, ME 2019, 'Multimodal X-ray imaging of grain-level properties and performance in a polycrystalline solar cell', Journal of synchrotron radiation. https://doi.org/10.1107/S1600577519003606
Ulvestad, A. ; Hruszkewycz, S. O. ; Holt, M. V. ; Hill, M. O. ; Calvo-Almazán, I. ; Maddali, S. ; Huang, X. ; Yan, H. ; Nazaretski, E. ; Chu, Y. S. ; Lauhon, L. J. ; Rodkey, N. ; Bertoni, Mariana ; Stuckelberger, M. E. / Multimodal X-ray imaging of grain-level properties and performance in a polycrystalline solar cell. In: Journal of synchrotron radiation. 2019.
@article{dc9f35bb34f545528c2c0b2884d29e03,
title = "Multimodal X-ray imaging of grain-level properties and performance in a polycrystalline solar cell",
abstract = "The factors limiting the performance of alternative polycrystalline solar cells as compared with their single-crystal counterparts are not fully understood, but are thought to originate from structural and chemical heterogeneities at various length scales. Here, it is demonstrated that multimodal focused nanobeam X-ray microscopy can be used to reveal multiple aspects of the problem in a single measurement by mapping chemical makeup, lattice structure and charge collection efficiency simultaneously in a working solar cell. This approach was applied to micrometre-sized individual grains in a Cu(In,Ga)Se2 polycrystalline film packaged in a working device. It was found that, near grain boundaries, collection efficiency is increased, and that in these regions the lattice parameter of the material is expanded. These observations are discussed in terms of possible physical models and future experiments.",
keywords = "multimodal characterization, scanning nanodiffraction, solar cell materials, X-ray-beam-induced current",
author = "A. Ulvestad and Hruszkewycz, {S. O.} and Holt, {M. V.} and Hill, {M. O.} and I. Calvo-Almaz{\'a}n and S. Maddali and X. Huang and H. Yan and E. Nazaretski and Chu, {Y. S.} and Lauhon, {L. J.} and N. Rodkey and Mariana Bertoni and Stuckelberger, {M. E.}",
year = "2019",
month = "1",
day = "1",
doi = "10.1107/S1600577519003606",
language = "English (US)",
journal = "Journal of Synchrotron Radiation",
issn = "0909-0495",
publisher = "International Union of Crystallography",

}

TY - JOUR

T1 - Multimodal X-ray imaging of grain-level properties and performance in a polycrystalline solar cell

AU - Ulvestad, A.

AU - Hruszkewycz, S. O.

AU - Holt, M. V.

AU - Hill, M. O.

AU - Calvo-Almazán, I.

AU - Maddali, S.

AU - Huang, X.

AU - Yan, H.

AU - Nazaretski, E.

AU - Chu, Y. S.

AU - Lauhon, L. J.

AU - Rodkey, N.

AU - Bertoni, Mariana

AU - Stuckelberger, M. E.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The factors limiting the performance of alternative polycrystalline solar cells as compared with their single-crystal counterparts are not fully understood, but are thought to originate from structural and chemical heterogeneities at various length scales. Here, it is demonstrated that multimodal focused nanobeam X-ray microscopy can be used to reveal multiple aspects of the problem in a single measurement by mapping chemical makeup, lattice structure and charge collection efficiency simultaneously in a working solar cell. This approach was applied to micrometre-sized individual grains in a Cu(In,Ga)Se2 polycrystalline film packaged in a working device. It was found that, near grain boundaries, collection efficiency is increased, and that in these regions the lattice parameter of the material is expanded. These observations are discussed in terms of possible physical models and future experiments.

AB - The factors limiting the performance of alternative polycrystalline solar cells as compared with their single-crystal counterparts are not fully understood, but are thought to originate from structural and chemical heterogeneities at various length scales. Here, it is demonstrated that multimodal focused nanobeam X-ray microscopy can be used to reveal multiple aspects of the problem in a single measurement by mapping chemical makeup, lattice structure and charge collection efficiency simultaneously in a working solar cell. This approach was applied to micrometre-sized individual grains in a Cu(In,Ga)Se2 polycrystalline film packaged in a working device. It was found that, near grain boundaries, collection efficiency is increased, and that in these regions the lattice parameter of the material is expanded. These observations are discussed in terms of possible physical models and future experiments.

KW - multimodal characterization

KW - scanning nanodiffraction

KW - solar cell materials

KW - X-ray-beam-induced current

UR - http://www.scopus.com/inward/record.url?scp=85066272857&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85066272857&partnerID=8YFLogxK

U2 - 10.1107/S1600577519003606

DO - 10.1107/S1600577519003606

M3 - Article

C2 - 31274460

AN - SCOPUS:85066272857

JO - Journal of Synchrotron Radiation

JF - Journal of Synchrotron Radiation

SN - 0909-0495

ER -