This title appears in the Scientific Report :
2011
Please use the identifier:
http://dx.doi.org/10.1016/j.solmat.2010.09.019 in citations.
Amorphous silicon solar cells deposited with non-constant silane concentration
Amorphous silicon solar cells deposited with non-constant silane concentration
The performance and light-soaking behavior of hydrogenated amorphous silicon (a-Si:H) solar cells with absorber layers deposited under non-constant silane concentration (SC) - a measure of silane dilution in hydrogen - using plasma enhanced chemical vapor deposition (PECVD) are investigated. Constan...
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Personal Name(s): | Muthmann, S. |
---|---|
Gordijn, A. | |
Contributing Institute: |
Photovoltaik; IEK-5 |
Published in: | Solar energy materials & solar cells, 95 (2011) S. 573 - 578 |
Imprint: |
Amsterdam
North Holland
2011
|
Physical Description: |
573 - 578 |
DOI: |
10.1016/j.solmat.2010.09.019 |
Document Type: |
Journal Article |
Research Program: |
Erneuerbare Energien |
Series Title: |
Solar Energy Materials and Solar Cells
95 |
Subject (ZB): | |
Publikationsportal JuSER |
The performance and light-soaking behavior of hydrogenated amorphous silicon (a-Si:H) solar cells with absorber layers deposited under non-constant silane concentration (SC) - a measure of silane dilution in hydrogen - using plasma enhanced chemical vapor deposition (PECVD) are investigated. Constant SC values during deposition close to the amorphous to microcrystalline phase transition lead to the formation of crystallites after a certain thickness. To prevent this transition, SC is adjusted during growth to produce an amorphous material that is close to the microcrystalline phase transition without the inclusion of a detectable microcrystalline phase. By adjusting SC during deposition it was possible to achieve an increased open-circuit voltage that is up to 40 mV higher than that for a conventional amorphous silicon solar cell at initial efficiencies above 9%. The best solar cells produced with non-constant SC show improved stability against light induced degradation, which leads to a relative loss in fill factor of only 11.4%, resulting in a stabilized fill factor of 62.5%. (C) 2010 Elsevier B.V. All rights reserved. |