Microcrystalline Silicon and the Impact on Micromorph Tandem Solar Cells

Intrinsic microcrystalline silicon opens up new ways for silicon thin-film multi-junction solar cells, the most promising being the "micromorph" tandem concept. The microstructure of entirely microcrystalline p-i-n solar cells is investigated by transmission electron microscopy. By applying low pressure chemical vapor deposition ZnO as front TCO in p-i-n configurated micromorph tandems, a remarkable reduction of the microcrystalline bottom cell thickness is achieved. Micromorph tandem cells with high open circuit voltages of 1.413 V could be accomplished. A stabilized efficiency of around 11% is estimated for micromorph tandems consisting of 2 μm thick bottom cells. Applying the monolithic series connection, a micromorph module (23.3 cm2) of 9.1% stabilized efficiency could be obtained. © 2002 Elsevier Science B.V. All rights reserved.


Published in:
Solar Energy Materials and Solar Cells, 74, 1-4, 457-467
Year:
2002
ISSN:
09270248
Note:
IMT-NE Number: 337
Laboratories:


Note: The status of this file is: Involved Laboratories Only


 Record created 2009-02-10, last modified 2018-03-17

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