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Steven J. Wojtczuk - Lexington MA, US Philip T. Chiu - Arlington MA, US Xuebing Zhang - Nashua NH, US Edward Gagnon - Bedford MA, US Michael Timmons - Durham NC, US
International Classification:
H01L 33/02 H01L 33/30
US Classification:
438 94, 257E33005, 257E33023
Abstract:
A method of fabricating on a semiconductor substrate bifacial tandem solar cells with semiconductor subcells having a lower bandgap than the substrate bandgap on one side of the substrate and with subcells having a higher bandgap than the substrate on the other including, first, growing a lower bandgap subcell on one substrate side that uses only the same periodic table group V material in the dislocation-reducing grading layers and bottom subcells as is present in the substrate and after the initial growth is complete and then flipping the substrate and growing the higher bandgap subcells on the opposite substrate side which can be of different group V material.
- Irvine CA, US Philip T. Chiu - Arlington MA, US Xuebing Zhang - Acton MA, US Edward Gagnon - Bedford MA, US Michael Timmons - Durham NC, US
International Classification:
H01L 31/18 H01L 31/0687 H01L 31/0693 H01L 31/068
US Classification:
438 74
Abstract:
A method of fabricating on a semiconductor substrate bifacial tandem solar cells with semiconductor subcells having a lower bandgap than the substrate bandgap on one side of the substrate and with subcells having a higher bandgap than the substrate on the other including, first, growing a lower bandgap subcell on one substrate side that uses only the same periodic table group V material in the dislocation-reducing grading layers and bottom subcells as is present in the substrate and after the initial growth is complete and then flipping the substrate and growing the higher bandgap subcells on the opposite substrate side which can be of different group V material.
Name / Title
Company / Classification
Phones & Addresses
Edward D. Gagnon General Manager, President
SPIRE CORPORATION INC Mfg Equipment and Technology for Solar Photovoltaic Modules · Mfg Semiconductors/Dvcs Coml Physical Research · Solar Energy and Biotechnology Surface Engineering · Solar Energy Equipment-Manufac · Plumbing Equip Merchant Whols
1 Patriots Park, Bedford, MA 01730 7812756000, 7812752978, 7812757470
Association For Facilities Engineering
Vice President of Professional Development
Association For Facilities Engineering Jan 2016 - Dec 2018
Industry Director
Bae Systems Apr 1, 2002 - Jun 2017
Lit Nca Ptp Facility Manager
Bae Systems May 2000 - Apr 2002
Principal Facilities Engineer
Gagnon Industrial Consultants Nov 1995 - Jan 2002
Owner
Education:
Maine Maritime Academy 1974 - 1978
Bachelors, Bachelor of Science, Engineering
Skills:
Preventive Maintenance Facilities Management Engineering Maintenance Management Project Management Hvac Contract Management Project Planning Energy Management Energy Inspection Program Management Safety Management Systems Construction Manufacturing Electricians Engineering Management Operations Management Security Clearance Factory Energy Efficiency Maintenance and Repair Nuclear Commissioning Generators Power Plants Management Budgets Construction Management Military Continuous Improvement Process Scheduler Procurement Navy Power Generation Mechanical Engineering Gas Turbines Troubleshooting Dod Project Engineering Root Cause Analysis Environmental Awareness Boilers Project Estimation Supervisory Skills Earned Value Management Steam Risk Assessment Pumps Marine Engineering
Interests:
Environment Education
Certifications:
Certified Energy Manager Certified Plant Engineer Certified Professional Maintenance Manager Certified Energy Auditor 1St Class Stationary Engineer Certified Professional Supervisor License 20037 License 2888 License 12741 License 1384 License Sse1910 Certified Plant Maintenance Manager Association of Energy Engineers, License 20037 Association of Facilities Engineers, License 2888 Association of Facilities Engineers, License 12741 Association of Energy Engineers, License 1384 State of Maine Bureau of Labor, License Sse1910
Thomas Welsh, Linda Messore, Ernest Pennine, Kathleen Salliby, Carol Podgorski, Steven Patriarca, Maria Letizia, Susan Moretti, Anne Dibattista, Claire Torre