A new catalyst developed: the combination of solar cells and fuel cells

Improved efficiency and stability of CQD solar cells using an organic thin film

Fabrication of shape-conformable batteries based on 3D-printing technology

Solav Energy provides the first and only integrated polymer-based solar water heating system

Solav Energy is a solar water heating company who strives to limit the negative effects of traditional energy sources by offering a sustainable, 'green' solar water heating solution. Solav’s solution is an outcome of synergetic integration between advanced polymer-based manufacturing capabilities and innovative, motivated development team. This company designed and developed a unique, revolutionary, polymer-based solar water heater which overcomes state of the art solutions that struggle with corrosion, calcium deposits and breakage of glass made parts. 

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22 days ago

Organic solar cell breakthrough for high-performance stretchable electronics

Scientists at the Ulsan National Institute of Science and Technology (UNIST) introduced a new type of organic solar cells with high flexibility that can withstand up to 100 continual bending/unbending cycles. This study demonstrates a simple processing route to potentially produce highly efficient stretchable photoactive layers for wearable all‐PSCs. This breakthrough has been led by Professor Changduk Yang in the School of Energy and Chemical Engineering in collaboration with Professor Hyesung Park in the School of Energy and Chemical Engineering at UNIST. The scientific team reported that the new all-polymer solar cells (all-PSCs) where all the layers are made from polymers showed promising stability by maintaining more than 90% of their initial performance after 100 bending cycles.

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22 days ago

New class of solar cells, using lead-free perovskite materials

Lead-based perovskites already gained much attention as promising materials for low-cost and high-efficiency solar cells. However, the intrinsic instability and the toxicity of lead (Pb) have raised serious concerns of the viability of Pb-based perovskites, hindering large-scale commercialization of solar cells and similar devices based on these materials. As an alternative solution, Pb-free perovskites were recently proposed to counter the toxicity of lead‐based perovskites, yet it is of little use due to lower efficiencies. A recent study, led by Professor Tae-Hyuk Kwon in the School of Natural Science at the Ulsan National Institute of Science and Technology (UNIST) has taken a major step toward the development of a new generation of solar cells, using lead-free perovskites. With its promising electronic properties, the new perovskite material has been demonstrated to function as a charge regenerator with dye‐sensitized solar cells, thus enhancing both the overall efficiency and stability.

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22 days ago

Improving crop yields while conserving resources

A system that produces electricity and hydrogen eliminating carbon dioxide

Pepticom provides various successful discovery projects, ranging from uses in agriculture to Alzheimer's disease

New wearable bio-patch improves cellular observation and drug delivery

A new flexible and translucent base for silicon nanoneedle patches to deliver exact doses of biomolecules directly into cells and expand observational opportunities has been developed by the researchers at Purdue University (PurdueU). This means that eight or nine silicon nanoneedles can be injected into a single cell without significantly damaging a cell. So the researchers can use these nanoneedles to deliver biomolecules into cells or even tissues with minimal invasiveness. Silicon nanoneedles patches are currently placed between skin, muscles or tissues where they deliver exact doses of biomolecules. Commercially available silicon nanoneedles patches are usually constructed on a rigid and opaque silicon wafer. The rigidity can cause discomfort and cannot be left in the body very long.

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23 days ago

A new vanadium redox-flow battery with longer durability

There has been a growing demand for large-scale storage for energy produced from renewable energy sources in an efficient and stable way. The vanadium redox-flow battery (VRFB) has received much attention for its high efficiency and reliability with the absence of cross-contamination. However, it has the limitation of having insufficient charge and discharge efficiency and a low capacity retention rate because its perfluorinated membrane is very permeable to any active materials. Scientists at the Korea Advanced Institute of Science and Technology (KAIST) developed a new vanadium redox-flow battery (VRFB) with 15 times greater capacity retention and five times longer durability. This VRFB battery can be an excellent candidate for a large-scale rechargeable battery with no risk of explosion.

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23 days ago

'Virtual Surgery' shows surgeons how wounds will heal

Human skin, like any other material, obeys the laws of physics - which means its mechanics can be predicted in computer simulations. Now a Purdue team (PurdueU) are bringing this technology to reconstructive surgeries. Using smartphone photos and computer analysis, surgeons can now predict how specific wounds and scars will heal. The research was led by Adrian Buganza, assistant professor of mechanical engineering at Purdue. He is interested in how skin deforms and adapts to physical forces, and how this affects skin growth and wound healing. And this is particularly important when it comes to reconstructive surgery. Dr. Buganza discovered that surgeons largely function by intuition and 'feel' when assessing the skin of a patient. 

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23 days ago

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