STEM与日常科技·英语30篇（5）
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How Solar Paint Turns Walls Into Power Sources
太阳能涂料如何将墙壁变为电源
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Solar paint contains light-absorbing nanoparticles—like perovskites—that generate electricity when exposed to sunlight.
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Unlike rigid panels, this liquid coating can be sprayed or rolled onto brick, concrete, or metal surfaces.
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Each layer is only 0.3 micrometers thick, yet converts up to 15% of incoming light into usable current.
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Researchers optimized the formula so it dries evenly and resists rain, UV rays, and temperature swings.
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A standard 50-square-meter wall coated with solar paint produces enough energy for LED lighting and Wi-Fi all day.
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Its biggest advantage is turning unused vertical surfaces into silent, decentralized power generators.
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Installation requires no structural reinforcement or wiring upgrades—just clean, dry walls and daylight.
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Current versions work best in diffuse light, meaning cloudy cities benefit more than expected.
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Pilot projects in Rotterdam and Tokyo show 20–25% annual energy offset for apartment buildings.
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This isn’t sci-fi—it’s chemistry, materials science, and urban design working in one thin, shiny layer.