... from whose perspective? At least one perspective holds that the perfect solar cell is one that doesn't even work, a thin strip of plastic made to look like a solar cell that costs a helluva lot less than the real thing:
Today I was walking home from an errand to a store.I saw the remains of a “Dual Power Calculator” in the gutter; it had an intact solar cell in the top.“Cool!”, I thought; “I’m going to rescue that solar cell for some DIY thing.”I grabbed the top part and tossed it in my bag.
When I got home, I dismantled it to remove the “solar cell”.I discovered that it was a fake, a thin strip of plastic separate from the body made to look like a solar cell.
WTF....