| Description |
1 online resource (6 p.) : col. ill. |
| Series |
NREL/CP ; 5200-50722 |
|
Conference paper (National Renewable Energy Laboratory (U.S.)) ; NREL/CP-5200-50722.
|
| System Details |
Full text available via Internet in .pdf format. Adobe Acrobat Reader required. |
| Note |
Title from title screen (viewed August 8, 2011). |
|
"July 2011." |
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"Presented at the 37th IEEE Photovoltaic Specialists Conference (PVSC 37), Seattle, Washington, June 19-24, 2011." |
| Summary |
The efficiency of Cu(In,Ga)Se2 (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. |
| Bibliography |
Includes bibliographical references (p. 5-6). |
| Funding |
DE-AC36-08GO28308 |
| Subject |
Photovoltaic cells -- Research.
|
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Solar cells -- Design and construction.
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Sodium.
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Molybdenum.
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| Added Author |
Mansfield, Lorelle M.
|
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National Renewable Energy Laboratory (U.S.)
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Climax Molybdenum Technology Center.
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IEEE Photovoltaic Specialists Conference (37th : 2011 : Seattle, Wash.)
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| Added Title |
Sodium-doped molybdenum targets for controllable sodium incorporation in Cu(In,Ga)Se2 solar cells |
|
Na-doped Mo targets for controllable Na incorporation in copper indium gallium diselenide solar cells |
| Gpo Item No. |
0430-P-04 (online) |
| Sudoc No. |
E 9.17:NREL/CP-5200-50722 |
|
