Continuous roll-to-roll a-Si PV module manufacturing
- Energy Conversion Devices, Inc., 1675 West Maple Road, Troy, Michigan 48084-5302 (United States)
Significant progress has been made recently at ECD (Energy Conversion Devices, Inc.), in developing new manufacturing technologies for a-Si (amorphous silicon) photovoltaics. In a 2 MW continuous roll-to-roll a-Si PV (photovoltaics) manufacturing plant, designed and constructed by ECD, we have advanced ECD{close_quote}s PV technology and demonstrated the manufacturing of 4 ft{sup 2} PV modules with 9.5{percent} initial and 8{percent} stable efficiencies. In addition, high subcell yield up to 99.7{percent} has been demonstrated in 600 m long (about 15 kW{sub p}) production runs with high uniformity and consistency. ECD has recently designed and constructed an additional pilot manufacturing machine to develop new technologies including high throughput serpentine web continuous roll-to-roll deposition of a-Si alloy materials. When it is incorporated into a large-scale production line, serpentine technology can maximize the throughput for a high volume production plant, reduce the machine cost, improve the gas utilization, reduce power consumption, and improve the material stability. Using a single loop serpentine chamber to deposit the top {ital i} layer, we have demonstrated triple-junction triple-bandgap solar cells with 95{percent} initial efficiency. {copyright} {ital 1996 American Institute of Physics.}
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 450107
- Report Number(s):
- CONF-9605265-; ISSN 0094-243X; TRN: 9703M0034
- Journal Information:
- AIP Conference Proceedings, Vol. 353, Issue 1; Conference: 13. NREL photovoltaics program review meeting, Lakewood, CO (United States), 16-19 May 1996; Other Information: PBD: Jan 1996
- Country of Publication:
- United States
- Language:
- English
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