Screen printing technology for backside metallization of a-Si:H solar cells
Abstract
It is demonstrated that the back side metallization of a-Si:H solar cells can be performed by screen printing instead of aluminum evaporation if the n+ layer of the cell is microcrystalline (microc) instead of amorphous. Such microc-Si n+ layers have been grown at growth rates of 0.1 micron/h, which is comparable to the growth rate of high quality a-Si:H. The process proposed offers advantages over classical aluminum evaporation in terms of throughput, and eliminates the use of lift-off technique or laser patterning after metal deposition.
- Publication:
-
19th IEEE Photovoltaic Specialists Conference
- Pub Date:
- 1987
- Bibcode:
- 1987pvsp.conf.1081B
- Keywords:
-
- Aluminum;
- Metallizing;
- Microcrystals;
- N-Type Semiconductors;
- Silicon Films;
- Solar Cells;
- Contact Resistance;
- Evaporation;
- Metal Particles;
- Printed Circuits;
- Electronics and Electrical Engineering