Coatings for large-area low-cost solar concentrators and reflectors
Seven years ago, Pacific Northwest Laboratory constructed a large-optics coating facility to develop and fabricate high-performance multilayer laser-mirror coatings on large substrates. With the reduction of DoD funding for the development of optical coatings for large optics, new applications for this chamber were sought. In addition to new DoD applications, the facility is now being used to fabricate multilayer enhanced-metal reflectors for low-cost large-area solar concentrators using both magnetron-sputtered metal and dielectric coatings, with future extension to vacuum-evaporated polymer coatings. Other new applications include: Ti/Ti:Al lamellar composites on flexible webs; EMI cladding for heater wire; EMI-shielding coatings on flexible webs; microwave-absorbing coatings on flexible webs; heat mirrors; bulk micromachining; and protective coatings on cylindrical substrates and webs. The facility has also been established as a DoD user facility for development and experimentation in large-area optical coatings. This paper describes important changes in the large-optics coating chamber and additional deposition equipment that has been added to pursue these new non-DoD technological areas. Solar reflectors and the resulting new coatings will be described. Future work and new technological areas being pursued will also be discussed.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 10169479
- Report Number(s):
- PNL-SA-24444; CONF-940723-12; ON: DE94015735; TRN: AHC29418%%3
- Resource Relation:
- Conference: Annual meeting of the Society of Photo-Optical Instrumentation Engineers,San Diego, CA (United States),24-29 Jul 1994; Other Information: PBD: Jul 1994
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
POLICY AND ECONOMY
14 SOLAR ENERGY
BATTELLE PACIFIC NORTHWEST LABORATORIES
TECHNOLOGY TRANSFER
LABORATORY EQUIPMENT
SOLAR CONCENTRATORS
REFLECTIVE COATINGS
SOLAR REFLECTORS
MODIFICATIONS
METALS
DIELECTRIC MATERIALS
SPUTTERING
290500
141000
RESEARCH, DEVELOPMENT, DEMONSTRATION, AND COMMERCIALIZATION
SOLAR COLLECTORS AND CONCENTRATORS