🌞 Breakthrough Coating Boosts Organic Solar Cell Efficiency Indoors

In a major leap for sustainable tech, Korean researchers have created a special coating for organic solar cells that delivers 28.6% indoor power conversion efficiency — a big step forward for powering low-energy devices like IoT sensors and wearables.

This new BPA (bisphenol-A-based) interface layer not only improves energy harvesting under low light but also enhances the sensitivity of solar cells, allowing them to work efficiently even under dim indoor lighting.

⚡ Powering the Future of Indoor IoT

Most solar technologies are designed for sunlight, which makes them less effective indoors. But this new coating is tailored specifically for indoor environments, making it ideal for Internet of Things (IoT) devices that need consistent, low-power energy.

Researchers from Korea Advanced Institute of Science and Technology (KAIST) say this dual-function design is low-cost and scalable, meaning it could soon be mass-produced to power millions of smart devices without batteries.

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🌱 A Step Toward Greener, Battery-Free Devices

Battery waste is a growing environmental problem, especially as IoT networks expand. By using indoor solar energy instead of disposable batteries, this technology could reduce e-waste while creating more sustainable smart homes and offices.

With energy demands increasing, this breakthrough points toward a future where solar-powered sensors, wearables, and home gadgets run effortlessly from ambient light.