STEM与日常科技·英语30篇（5）

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太阳能涂料如何将墙壁变为电源

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