projects:blinker:work_logs:8_solar_cells
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionLast revisionBoth sides next revision | ||
projects:blinker:work_logs:8_solar_cells [2022/04/03 06:03] – tjhowse | projects:blinker:work_logs:8_solar_cells [2022/04/17 23:35] – tjhowse | ||
---|---|---|---|
Line 50: | Line 50: | ||
All of this testing was done on a single 125x125 solar cell. I have another nine of them to experiment with. I would like to see how these cells respond to a CO2 laser. I work with people who built solar racing cars, and so have experience with this kind of thing. We also have a water jet cutter at work, which might be worth a try. | All of this testing was done on a single 125x125 solar cell. I have another nine of them to experiment with. I would like to see how these cells respond to a CO2 laser. I work with people who built solar racing cars, and so have experience with this kind of thing. We also have a water jet cutter at work, which might be worth a try. | ||
+ | |||
+ | ==== Unearned success ==== | ||
+ | |||
+ | I was at bunnings (a hardware store) for an unrelated reason and I saw some solar-powered garden lights with various configurations of solar cells. They were mostly under AUD$10 so I grabbed an 8-solar-cell LED light on a stake. | ||
==== Success again ==== | ==== Success again ==== | ||
+ | |||
+ | {{: | ||
Once I got my [[projects: | Once I got my [[projects: | ||
Line 64: | Line 70: | ||
Repeatable results. | Repeatable results. | ||
- | I will solder | + | {{: |
+ | Soldered up one five-cell array. | ||
+ | |||
+ | I used some fine copper wire to join the cells. I used leaded solder, a chisel tip, Chipquik SMD291 flux and 270ºC. I dipped the wire in the flux and laid it across the contact on the panel, wet the iron tip with a good amount of solder then swept across the copper while I held it in place. Once I got my technique sorted it was pretty straightforward. | ||
+ | |||
+ | Holding this cell in diffuse sunlight gave 2.7V open circuit voltage. | ||
===== Videos ===== | ===== Videos ===== | ||
Line 73: | Line 84: | ||
Success: | Success: | ||
+ | |||
+ | {{ youtube> | ||
{{ youtube> | {{ youtube> |
projects/blinker/work_logs/8_solar_cells.txt · Last modified: 2022/04/17 23:45 by tjhowse