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Investigation of some transparent metal oxides as damp heat protective coating for CIGS solar cells : preprint / F.J. Pern [and others].
Connect to full text Available online
View online- Format:
- Book
- Conference/Event
- Government document
- Conference Name:
- SPIE Optics and Photonics Conference (2012 : San Diego, Calif.)
- Series:
- Conference paper (National Renewable Energy Laboratory (U.S.)) ; 5200-54188.
- NREL/CP ; 5200-54188
- Language:
- English
- Subjects (All):
- Solar cells--Research.
- Solar cells.
- Metallic oxides--Research.
- Metallic oxides.
- Protective coatings--Research.
- Protective coatings.
- Physical Description:
- 1 online resource ([17] pages) : color illustrations.
- Place of Publication:
- [Golden, CO] : National Renewable Energy Laboratory, [2012]
- Summary:
- We investigated the protective effectiveness of some transparent metal oxides (TMO) on CIGS solar cell coupons against damp heat (DH) exposure at 85oC and 85% relative humidity (RH). Sputter-deposited bilayer ZnO (BZO) with up to 0.5-um Al-doped ZnO (AZO) layer and 0.2-um bilayer InZnO were used as 'inherent' part of device structure on CdS/CIGS/Mo/SLG. Sputter-deposited 0.2-um ZnSnO and atomic layer deposited (ALD) 0.1-um Al2O3 were used as overcoat on typical BZO/CdS/CIGS/Mo/SLG solar cells. The results were all negative -- all TMO-coated CIGS cells exhibited substantial degradation in DH. Combining the optical photographs, PL and EL imaging, SEM surface micro-morphology, coupled with XRD, I-V and QE measurements, the causes of the device degradations are attributed to hydrolytic corrosion, flaking, micro-cracking, and delamination induced by the DH moisture. Mechanical stress and decrease in crystallinity (grain size effect) could be additional degrading factors for thicker AZO grown on CdS/CIGS.
- Notes:
- Title from title screen (viewed Jan. 30, 2013).
- "October 2012."
- "Presented at SPIE Optics + Photonics, San Diego, California, August 12-16, 2012."
- Includes bibliographical references (pages 13-15).
- OCLC:
- 826038300
- Publisher Number:
- 1060072 OSTI ID
- Access Restriction:
- Publicly released
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