A new thin-film innovation allows solar panels to generate electricity from both sunlight and raindrops, offering a dual-source energy solution.

Developed by researchers at the Institute of Materials Science of Seville—a joint center of the Spanish National Research Council and the University of Seville—the hybrid device combines solar and rain-based energy generation. At its core is a patented thin film that not only protects perovskite solar cells and enhances their durability in harsh conditions, but also enables nanogenerators to produce over 100 volts from the impact of a single raindrop, enough to power small electronic devices.

Figure 1. Hybrid Energy Device Taps Sunlight and Raindrops for Power

Halide perovskite solar cells are made from engineered crystalline materials that capture sunlight with high efficiency. Although silicon still dominates solar technology, perovskites are seen as a strong alternative due to their excellent performance and lower manufacturing costs. Figure 1 shows Hybrid Energy Device Taps Sunlight and Raindrops for Power.

Plasma-Coated Layer Enables Protection and Energy Harvesting

One key limitation of perovskite solar cells is their vulnerability to environmental damage. To overcome this, researchers at the Institute of Materials Science of Seville applied a plasma-deposited protective coating just 100 nanometers thick.

This ultra-thin layer performs two important functions: it shields the cells from chemical degradation while improving light absorption. At the same time, its triboelectric surface converts the impact of raindrops into electrical energy, generating up to 110 volts from a single drop—enough to power small electronic devices.

The coating is durable and stable even under extreme conditions, including full water immersion, and can be produced using scalable, sustainable methods. It can continuously power simple electronics like LED circuits while helping solar panels resist humidity and temperature fluctuations. As noted by Carmen López, the innovation demonstrates the feasibility of combining photovoltaic technology with triboelectric nanogenerators in a single thin-film system.

A Breakthrough for Continuous Energy Generation

Conventional batteries have clear limitations, and solar panels often lose efficiency in cloudy conditions. This new technology overcomes those challenges by harnessing both sunlight and rainfall, ensuring a more reliable and continuous energy supply. Its aim is to keep portable and wireless devices running consistently, even in changing weather.

The researchers highlight its potential across a wide range of Internet of Things (IoT) applications, including environmental monitoring sensors, structural health systems for bridges and buildings, weather stations, and precision agriculture [1]. According to Fernando Núñez of the Institute of Materials Science of Seville, the technology is also well-suited for smart city infrastructure—such as signage, autonomous lighting, and monitoring systems—as well as for remote or hard-to-access locations like marine stations, thanks to its durability in harsh environmental conditions.

Advancing Toward Self-Sustaining Outdoor Systems

This research presents a new approach to creating resilient, self-powered electronic systems for outdoor use. By using plasma-deposited coatings, scientists have developed a multifunctional solution that not only protects sensitive energy devices but also enables them to harvest energy from multiple environmental sources—such as sunlight and rain—paving the way for hybrid “rain panels” and more sustainable, autonomous technologies.

Reference:

1. https://scitechdaily.com/this-breakthrough-solar-panel-generates-power-from-both-sunlight-and-raindrops/

Cite this article:

Janani R (2026), New Solar Panel Breakthrough Generates Energy from Sunlight and Rain, AnaTechMaz, pp.819