With global solar panel prices hovering around $2.80 per watt for commercial installations , many eco-conscious homeowners are asking: "Can I build an affordable solar cell myself?" Well, here's the thing—the basic physics of photovoltaics isn't rocket science. In fact, researchers at Caltech recently demonstrated a DIY solar cell prototype with 6.5% efficiency using common materials . Let's break down how you can create functional solar cells without specialized equipment.
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