Spanish Researchers Engineer Hybrid Perovskite Solar Cells Capable of Generating 110V Electricity From Single Raindrops

Spanish scientists develop a hybrid perovskite solar cell that uses a 100nm plasma film to generate electricity from both sunshine and falling raindrops.

By: AXL Media

Published: Feb 28, 2026, 3:51 AM EST

Source: The information in this article was sourced from Interesting Engineering

Overcoming the Intermittency of Traditional Solar Power

A team of researchers at the Institute of Materials Science of Seville (ICMS) in Spain has successfully addressed a fundamental limitation of photovoltaic technology: its inability to generate power during heavy rainfall. By integrating perovskite solar cells with advanced energy-harvesting nanogenerators, the team created a hybrid device that remains operational regardless of sky conditions. This breakthrough is particularly significant for regions with high annual precipitation, where traditional solar output often collapses during extended periods of cloud cover. The resulting hybrid system ensures a more consistent power flow, moving closer to the goal of true energy autonomy for remote electronic systems.

Plasma Technology and the 100 Nanometer Shield

The core of this innovation lies in a specialized thin film developed using plasma technology, measuring a mere 100 nanometers in thickness. This ultra-thin coating serves a triple purpose: it encapsulates and protects the sensitive chemical structure of the perovskite material, enhances the cell's light-absorption properties, and functions as an active kinetic energy harvester. According to the research published in Nano Energy, the film acts as a triboelectric surface that converts the physical impact of raindrops into an electrical charge. This multifaceted approach solves the historical reliability issues associated with perovskite materials while simultaneously expanding their functional utility.

Generating High Voltage From Kinetic Impacts

Laboratory experiments conducted at the ICMS facility revealed the surprising electrical potential of water droplets falling on the new hybrid surface. A single raindrop was found to be capable of generating a potential difference of 110 V, which is a sufficient surge to power small portable electronics or LED circuits. Carmen Lopez, a lead researcher involved in the study, noted that the work demonstrates a viable path for combining photovoltaic technology with triboelectric nanogenerators in a single thin-film configuration. This ability to capture high-voltage energy from rain allows the device to supplement its solar output, providing a steady baseline of electricity even when the sun is entirely obscured.