Solar Energy News -- ScienceDaily
Smart windows that self-illuminate on rainy days
Fri, 29 May 2020 15:07:04 EDT
A research team develops self-powering, color-changing humidity sensors. Applicable to various fields including smart windows, health care and safety management.
Next-generation solar cells pass strict international tests
Thu, 21 May 2020 15:19:01 EDT
A cost-effective method to stabilise perovskite solar cells could soon see them become commercially viable.
Novel device harnesses shadows to generate electricity
Thu, 21 May 2020 10:21:08 EDT
Researchers have created a device called a 'shadow-effect energy generator' that makes use of the contrast in illumination between lit and shadowed areas to generate electricity. This novel concept opens up new approaches in harnessing indoor lighting conditions to power electronics.
3D-printed system speeds up solar cell testing from hours to minutes
Wed, 20 May 2020 13:16:59 EDT
Tests on new designs for next-gen solar cells can now be done in minutes instead of days thanks to a new system.
Efficient, 'green' quantum-dot solar cells exploit defects
Mon, 18 May 2020 11:16:43 EDT
Novel quantum dot solar cells match the efficiency of existing quantum-dot based devices, but without lead or other toxic elements that most solar cells of this type rely on.
Fast-charging super-capacitor technology
Thu, 14 May 2020 11:57:40 EDT
Experts believe their dream of clean energy storage is a step closer after they unveiled their ground-breaking super-capacitor technology that is able to store and deliver electricity at high power rates, particularly for mobile applications.
On the road to non-toxic and stable perovskite solar cells
Mon, 11 May 2020 15:49:02 EDT
The promising halide perovskite materials for solar energy conversion show high efficiencies, but this comes at a cost: The best perovskite materials incorporate toxic lead which poses a hazard to the environment. Researchers have now engineered a new hybrid perovskite material with promising efficiency and stability.
Saving energy and lives: How a solar chimney can boost fire safety
Tue, 05 May 2020 07:22:00 EDT
Built as part of the sustainable features of a new Australian building, the specially-designed solar chimney radically boosts safe evacuation time in a fire - from 2 minutes to over 14 minutes.
Engineers demonstrate next-generation solar cells can take the heat, maintain efficiency
Mon, 04 May 2020 16:57:45 EDT
Engineers have developed a next-generation solar cell that takes advantage of the promising elctro-optical properties of perovskite materials. They've made the materials much more stable at high temperatures and demonstrated a consistent, clean way to fabricate them into solar cells. Those could be important steps toward commercial production of new, low-cost, efficient, lightweight and flexible solar cells.
Solar and wind energy sites mapped globally for the first time
Mon, 04 May 2020 15:02:15 EDT
Researchers have mapped the global locations of major renewable energy sites, providing a valuable resource to help assess their potential environmental impact.
Water-splitting module a source of perpetual energy
Mon, 04 May 2020 15:02:11 EDT
Researchers have integrated high-efficiency solar cells and electrode catalysts into an efficient, low-cost device that splits water to produce hydrogen fuel.
Engineers make a promising material stable enough for use in solar cells
Wed, 29 Apr 2020 15:56:54 EDT
A research team has found a way to make halide perovskites stable enough by inhibiting the ion movement that makes them rapidly degrade, unlocking their use for solar panels as well as electronic devices.
Environment-friendly compound shows promise for solar cell use
Fri, 24 Apr 2020 13:26:00 EDT
A team of engineers, material scientists, and physicists demonstrated how a new material -- a lead-free chalcogenide perovskite -- that hadn't previously been considered for use in solar cells could provide a safer and more effective option than others that are commonly considered.
Electronic skin fully powered by sweat can monitor health
Wed, 22 Apr 2020 21:36:09 EDT
Electronic skin monitors body's vitals signs while being powered by sweat.
A clear semiconductor based on tin could improve solar power generation
Wed, 22 Apr 2020 09:11:55 EDT
Mobility is a key parameter for semiconductor performance and relates to how quickly and easily electrons can move inside a substance. Researchers have achieved the highest mobility among thin films of tin dioxide ever reported. This high mobility could allow engineers to create thin and even transparent tin dioxide semiconductors for use in next-generation LED lights, photovoltaic solar panels or touch-sensitive display technologies.
Physicists develop approach to increase performance of solar energy
Mon, 20 Apr 2020 12:54:44 EDT
Experimental condensed matter physicists have developed an approach to circumvent a major loss process that currently limits the efficiency of commercial solar cells.
New discovery settles long-standing debate about photovoltaic materials
Fri, 17 Apr 2020 12:55:06 EDT
Scientists have theorized that organometallic halide perovskites -- a class of light harvesting 'wonder' materials for applications in solar cells and quantum electronics -- are so promising due to an unseen yet highly controversial mechanism called the Rashba effect. Scientists have now experimentally proven the existence of the effect in bulk perovskites.
Six-junction solar cell sets two world records for efficiency
Tue, 14 Apr 2020 17:32:55 EDT
Scientists have fabricated a solar cell with an efficiency of nearly 50%. The six-junction solar cell now holds the world record for the highest solar conversion efficiency at 47.1%, which was measured under concentrated illumination. A variation of the same cell also set the efficiency record under one-sun illumination at 39.2%.
Tandem solar cell world record
Tue, 14 Apr 2020 12:27:58 EDT
A special branch in the famous NREL-chart for solar cell world records refers to a newly developed tandem solar cell. The world-record cell combines the semiconductors perovskite and CIGS to a monolithic 'two-terminal' tandem cell. Due to the thin-film technologies used, such tandem cells survive much longer in space and can even be produced on flexible films. The new tandem cell achieves a certified efficiency of 24.16 percent.
Solar power plants get help from satellites to predict cloud cover
Tue, 14 Apr 2020 12:27:54 EDT
Cloud cover is often characterized in simple terms, such as cloudy, partly cloudy or clear. This does not provide accurate information for estimating the amount of sunlight available for solar power plants. A new method is reported for estimating cloud optical properties using data from recently launched satellites.