New Solar Cells Can Generate Power Underwater

Researchers led by Simin Ma at Yunnan University have developed perovskite solar cells specifically designed to generate electricity underwater, potentially providing a new power source for marine sensors and autonomous underwater equipment.

Key points

• Add ProPakistani to Preferred Sources and see more of our stories in Google Search and Top Stories.
• Based on the degradation rate, the researchers estimate the panels could operate in seawater for around 5.5 years before falling to 80% of their initial performance.
• The system successfully charged coin-cell batteries for a number of hours at depths of 2, 6, and 10 meters.
• Add as a preferredSource on Google Follow on Google News Join WhatsApp.
• The team additionally tested the technology in real seawater by attaching a panel to a small underwater vehicle in the South China Sea.

Unlike conventional silicon panels, perovskite solar cells can be chemically tuned to absorb specific wavelengths of light. This is useful underwater since water swiftly filters out plenty of wavelengths that normal silicon panels rely on. Unaffordable Electricity and High Fuel Rates Cannot Exist Together in Pakistan. Up to 35% Efficiency Underwater.

Meanwhile, the researchers optimized the cells for the wavelengths of light still available at depths of around 10 meters.

Under laboratory lighting designed to reproduce those underwater conditions, the cells converted approximately 35% of the available light energy into electricity.

Although the figures are measured under particularly different lighting conditions, for comparison, conventional silicon solar panels typically operate at efficiencies closer to 20%. Making Perovskites More Water Resistant.

Moisture normally causes perovskite materials to degrade rapidly, creating an obvious challenge for underwater employ. The researchers addressed this using an additive called polyhexamethylene guanidine hydrochloride.

Notably, the material helps create a water-repelling layer while additionally improving the perovskite crystal structure. It encourages larger crystals to form and reduces ion movement inside the material, helping slow degradation while improving electrical performance.

For context, the finished cells were additionally enclosed between protective layers before underwater testing. 99.6% Performance Retained After 40 Days.

During laboratory testing, the panels were submerged in seawater for around 40 days while exposed to filtered underwater-style light. After that period, they retained 99.6% of their original efficiency.

That remains far shorter than the lifespan of conventional silicon panels but represents a significant improvement for perovskite technology. Xiaomi Launches AI-Powered Triple-Drum Washing Machine. Tested in the South China Sea.

Meanwhile, the team additionally tested the technology in real seawater by attaching a panel to a small underwater vehicle in the South China Sea.

Meanwhile, the system successfully charged coin-cell batteries for a number of hours at depths of 2, 6, and 10 meters.

Power output fluctuated considerably at two meters since waves changed how sunlight reached the panel.

At greater depths, the light became dimmer but more consistent due to rose scattering. At 10 meters, the panel generated slightly less than one-quarter of the energy produced at two meters.

For context, the researchers believe the technology could eventually power autonomous marine systems, underwater Internet of Things devices, sensors, and unmanned underwater vehicles.

Its usefulness would still be limited at much greater depths, where too little sunlight reaches the water for solar generation to remain practical. Stay Connected with ProPakistani.

Obtain the latest tech news, telecom insights, and product launches wherever you prefer. Follow on Google Discover.

Technology and Automotive Specialist covering the latest cars, smartphones, AI breakthroughs, and.

For now, new Solar Cells Can Generate Power Underwater remains the part of the story worth watching, and further updates are likely as more details are confirmed.