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The cell generates well over 20 volts in direct sunlight, but for my purposes here I tested using a 30 w fluorescent, 12 inch bulb with the panel about 4 inches from it. Still generates about 7 volts this way. In even dim sunlight (nearly sunset and with clouds), the panel generates almost 6 volts.
The first jig.
This lets us set the spacing on the cells and keeps the tabbing wire in position while we solder them up.
July 31, 2017 - Oregon senator Jeff Merkley gets ready to paint a perovskite ink formulation on a small glass panel to instantly make a solar cell while touring the Science and Technology Facility (S&TF) on the campus of the National Renewable Energy Laboratory (NREL) in Golden, Colorado. (Photo by Werner Slocum / NREL)
Dr. Simon Fafard, President and CTO of Cyrium Technologies Inc. presents High Efficiency Solar Cells for Concentrated Photovoltaic (CPV) using Semiconductor Nanostructures
July 31, 2017 - Oregon senator Jeff Merkley meets the staff during a tour at the Science & Technology Facility (S&TF) on the campus of the National Renewable Energy Laboratory (NREL) in Golden, Colorado. (Photo by Werner Slocum / NREL)
I took a trip from Vestal, New York, to Lansing. Michigan. It took me across four states. This is the Chautauqua Lake Welcome Center at Bemus Point, New York. The center is powered by an array of solar power cells.
My solution to the 'fragile' issue? Two 8" x 14" sections of 'clear acrylic'. Technically, this is just plexiglass which is thinner than normal plexiglass (about 1/8"). Took the panel and sandwiched it in between the two sheets, sealed around the panel with some silicon, added pressure to adhere the silicon to the panels and I have instant protection. My concern was loss of power with the extra barrier, but if any, it's maybe a 5 percent loss.