Sodium-Doped Molybdenum Targets for Controllable Sodium Incorporation in CIGS Solar Cells

Lorelle M. Mansfield; Ingrid L. Repins; Stephen Glynn; Michael D. Carducci; David M. Honecker; Joel W. Pankow; Matthew R. Young; Clay DeHart; Rajalakshmi Sundaramoorthy; Carolyn L. Beall; Bobby To

doi:10.1109/pvsc.2011.6185937

Sodium-Doped Molybdenum Targets for Controllable Sodium Incorporation in CIGS Solar Cells

Lorelle M. Mansfield, Ingrid L. Repins, Stephen Glynn, Michael D. Carducci, David M. Honecker, Joel W. Pankow, Matthew R. Young, Clay DeHart, Rajalakshmi Sundaramoorthy, Carolyn L. Beall, Bobby To

Research output: Contribution to conference › Paper › peer-review

22 Scopus Citations

Abstract

The efficiency of Cu(In, Ga)Se ₂ (CIGS) solar cells is enhanced when Na is incorporated in the CIGS absorber layer. This work examines Na incorporation in CIGS utilizing Na-doped Mo sputtered from targets made with sodium molybdate-doped (MONA) powder. Mo:Na films with varying thicknesses were sputtered onto Mo-coated borosilicate glass (BSG) or stainless steel substrates for CIGS solar cells. By use of this technique, the Na content of CIGS can be varied from near-zero to higher than that obtained from a soda-lime glass (SLG) substrate. Targets and deposition conditions are described. The doped Mo films are analyzed, and the resulting devices are compared to devices fabricated on Mo-coated SLG as well as Mo-coated BSG with NaF. Completed devices utilizing MONA exceeded 15.7% efficiency without anti-reflective coating, which was consistently higher than devices prepared with the NaF precursor. Strategies for minimizing adhesion difficulties are presented.

Original language	American English
Pages	3636-3641
Number of pages	6
DOIs	https://doi.org/10.1109/pvsc.2011.6185937 https://doi.org/10.1109/PVSC.2011.6185937
State	Published - 2011
Event	37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States Duration: 19 Jun 2011 → 24 Jun 2011

Conference

Conference	37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Country/Territory	United States
City	Seattle, WA
Period	19/06/11 → 24/06/11

Bibliographical note

See NREL/CP-5200-50722 for preprint

NREL Publication Number

NREL/CP-5200-55737

Access to Document

Cite this

Mansfield, L. M., Repins, I. L., Glynn, S., Carducci, M. D., Honecker, D. M., Pankow, J. W., Young, M. R., DeHart, C., Sundaramoorthy, R., Beall, C. L., & To, B. (2011). Sodium-Doped Molybdenum Targets for Controllable Sodium Incorporation in CIGS Solar Cells. 3636-3641. Paper presented at 37th IEEE Photovoltaic Specialists Conference, PVSC 2011, Seattle, WA, United States. https://doi.org/10.1109/pvsc.2011.6185937, https://doi.org/10.1109/PVSC.2011.6185937

@conference{6f2cf05d0d6946d7bc4b46fe516fd866,

title = "Sodium-Doped Molybdenum Targets for Controllable Sodium Incorporation in CIGS Solar Cells",

abstract = "The efficiency of Cu(In, Ga)Se 2 (CIGS) solar cells is enhanced when Na is incorporated in the CIGS absorber layer. This work examines Na incorporation in CIGS utilizing Na-doped Mo sputtered from targets made with sodium molybdate-doped (MONA) powder. Mo:Na films with varying thicknesses were sputtered onto Mo-coated borosilicate glass (BSG) or stainless steel substrates for CIGS solar cells. By use of this technique, the Na content of CIGS can be varied from near-zero to higher than that obtained from a soda-lime glass (SLG) substrate. Targets and deposition conditions are described. The doped Mo films are analyzed, and the resulting devices are compared to devices fabricated on Mo-coated SLG as well as Mo-coated BSG with NaF. Completed devices utilizing MONA exceeded 15.7% efficiency without anti-reflective coating, which was consistently higher than devices prepared with the NaF precursor. Strategies for minimizing adhesion difficulties are presented.",

author = "Mansfield, {Lorelle M.} and Repins, {Ingrid L.} and Stephen Glynn and Carducci, {Michael D.} and Honecker, {David M.} and Pankow, {Joel W.} and Young, {Matthew R.} and Clay DeHart and Rajalakshmi Sundaramoorthy and Beall, {Carolyn L.} and Bobby To",

note = "See NREL/CP-5200-50722 for preprint; 37th IEEE Photovoltaic Specialists Conference, PVSC 2011 ; Conference date: 19-06-2011 Through 24-06-2011",

year = "2011",

doi = "10.1109/pvsc.2011.6185937",

language = "American English",

pages = "3636--3641",

}

Mansfield, LM , Repins, IL , Glynn, S, Carducci, MD, Honecker, DM, Pankow, JW, Young, MR, DeHart, C, Sundaramoorthy, R, Beall, CL & To, B 2011, 'Sodium-Doped Molybdenum Targets for Controllable Sodium Incorporation in CIGS Solar Cells', Paper presented at 37th IEEE Photovoltaic Specialists Conference, PVSC 2011, Seattle, WA, United States, 19/06/11 - 24/06/11 pp. 3636-3641. https://doi.org/10.1109/pvsc.2011.6185937, https://doi.org/10.1109/PVSC.2011.6185937

TY - CONF

T1 - Sodium-Doped Molybdenum Targets for Controllable Sodium Incorporation in CIGS Solar Cells

AU - Mansfield, Lorelle M.

AU - Repins, Ingrid L.

AU - Glynn, Stephen

AU - Carducci, Michael D.

AU - Honecker, David M.

AU - Pankow, Joel W.

AU - Young, Matthew R.

AU - DeHart, Clay

AU - Sundaramoorthy, Rajalakshmi

AU - Beall, Carolyn L.

AU - To, Bobby

N1 - See NREL/CP-5200-50722 for preprint

PY - 2011

Y1 - 2011

N2 - The efficiency of Cu(In, Ga)Se 2 (CIGS) solar cells is enhanced when Na is incorporated in the CIGS absorber layer. This work examines Na incorporation in CIGS utilizing Na-doped Mo sputtered from targets made with sodium molybdate-doped (MONA) powder. Mo:Na films with varying thicknesses were sputtered onto Mo-coated borosilicate glass (BSG) or stainless steel substrates for CIGS solar cells. By use of this technique, the Na content of CIGS can be varied from near-zero to higher than that obtained from a soda-lime glass (SLG) substrate. Targets and deposition conditions are described. The doped Mo films are analyzed, and the resulting devices are compared to devices fabricated on Mo-coated SLG as well as Mo-coated BSG with NaF. Completed devices utilizing MONA exceeded 15.7% efficiency without anti-reflective coating, which was consistently higher than devices prepared with the NaF precursor. Strategies for minimizing adhesion difficulties are presented.

AB - The efficiency of Cu(In, Ga)Se 2 (CIGS) solar cells is enhanced when Na is incorporated in the CIGS absorber layer. This work examines Na incorporation in CIGS utilizing Na-doped Mo sputtered from targets made with sodium molybdate-doped (MONA) powder. Mo:Na films with varying thicknesses were sputtered onto Mo-coated borosilicate glass (BSG) or stainless steel substrates for CIGS solar cells. By use of this technique, the Na content of CIGS can be varied from near-zero to higher than that obtained from a soda-lime glass (SLG) substrate. Targets and deposition conditions are described. The doped Mo films are analyzed, and the resulting devices are compared to devices fabricated on Mo-coated SLG as well as Mo-coated BSG with NaF. Completed devices utilizing MONA exceeded 15.7% efficiency without anti-reflective coating, which was consistently higher than devices prepared with the NaF precursor. Strategies for minimizing adhesion difficulties are presented.

UR - http://www.scopus.com/inward/record.url?scp=84861082174&partnerID=8YFLogxK

U2 - 10.1109/pvsc.2011.6185937

DO - 10.1109/pvsc.2011.6185937

M3 - Paper

AN - SCOPUS:84861082174

SP - 3636

EP - 3641

T2 - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011

Y2 - 19 June 2011 through 24 June 2011

ER -

Sodium-Doped Molybdenum Targets for Controllable Sodium Incorporation in CIGS Solar Cells

Abstract

Conference

Bibliographical note

NREL Publication Number

Access to Document

Other files and links

Fingerprint

Cite this