JAMES DYSON award-winning window uses crop waste to capture UV light for renewable energy

Sustainability is the next big movement when it comes to design, it is something every industry will have to apply and one of the most interesting parts of it is material exploration – what substitutes can we use or tweaks can we make to optimize our resources for the betterment of the climate? Fossil fuels continue to account for over 81% of global energy production according to the International Energy Agency and if we continue to burn fossil fuels at the current rate, global supplies of gas and oil will deplete by 2060.

To make sure we are prepared for change, we need to focus on accessible and effective renewable alternatives (like Quantum Dots). This year’s James Dyson Award winner in the sustainability category attempts to answer their question with an innovative solar energy-harvesting window made of recycled materials. The AuREUS system uses technology created from upcycled crop waste that helps walls/windows absorb stray UV light from sunlight and convert it to clean renewable electricity – absolute genius!

Designed by Carvey Ehren Maigue of Mapua University, these panels can be crafted into windows or walls which will harvest solar energy and convert it into electricity. Three things that made me instantly fall in love with this design are 1) clean renewable energy 2) using crop waste and 3) lower electricity bills. AuRUES was inspired by the phenomenon of the aurora lights which is a whimsical natural process that occurs when luminescent particles in the upper atmosphere absorb energy from UV and gamma radiation and emit it as visible light. The panels mimic this process by embedding similar luminescent particles in resin so that when the sunlight hits the panel it absorbs the UV and produces visible light. The light is then directed towards the edges of the panel where regular photovoltaic cells collect the energy to turn it into electricity. The colors of the luminescent particles come from dyes that were made from waste crops which makes this a closed-loop system.

The current renewable energy solutions can only generate electricity in the right environmental conditions. For example, solar panels can only capture and convert visible light into renewable energy and must be facing the sun to do so. Even solar farms need to be built horizontally which takes up space that could actually be used for cultivation or other resources. By using AuREUS, it eliminates the need to have certain conditions to harness solar energy which makes it more efficient and accommodating to various spaces.

“As a farmer, I see great potential in this technology to generate clean renewable energy. AuREUS System Technology conserves space using pre-existing structures, utilizes current resources and waste streams, and supports local agricultural communities,” says James Dyson. By harvesting UV radiation AuREUS opens a gateway to increase the potential of solar energy as conventional solar cells miss that part of the spectrum.

Apart from lowering costs, mitigating climate change, and supporting local agricultural communities, these panels will also reduce people’s exposure to radiation that can cause serious diseases and help in reducing the urban carbon footprint with sustainable architecture. “I want to create a better form of renewable energy that uses the world’s natural resources, is close to people’s lives, forging achievable paths and rallying towards a sustainable and regenerative future,” says Maigue. His invention is both future-looking and problem-solving for the present.

Designer: Carvey Ehren Maigue

Transparent solar panels + ‘Quantum Dots’ will harvest energy on an architectural scale!

Have you seen the movie Skyscraper (yes, the one with The Rock)? Now imagine that tall glass building being a source of energy for the whole structure instead of just using energy! This futuristic vision could soon be a reality and the key lies in the creation of transparent solar cells which, when placed between the panes of double-glazed windows, harvest energy from the sun – this is the solar panel version of Harry’s invisible cloak if you will. Also, can you imagine phone screens made with this? We would eliminate portable charging!

Researchers have set a new efficiency record for color-neutral, transparent solar cells by achieving 8.1% efficiency and 43.3% transparency with an organic, or carbon-based design rather than conventional silicon. Glass on buildings have a coating to reflect and absorb some of the light for reducing brightness/heat inside and rather than discarding that energy away, transparent solar panels could harness it. For context, the previous transparent solar cells have light utilization efficiencies of approximately 2-3% which makes 8.1% a big leap. “Windows, which are on the face of every building, is an ideal location for organic solar cells because they offer something silicon can’t, which is a combination of very high efficiency and very high visible transparency,” explains Stephen Forrest, the Peter A. Franken distinguished university Professor of engineering and Paul G. Goebel Professor of engineering.

To further push boundaries, UbiQD, an advanced materials company from New Mexico is continuing its development of transparent solar panels that are indistinguishable from regular glass using Quantum Dots – microscopic particles that have the ability to manipulate light to harness energy. “These Quantum Dots are super ‘nano’ particles of material and it would take roughly 100,000 of them to span your fingernail. These materials are especially advantageous due to having remarkably high efficiency and size-tunable photoluminescence (PL, light emission) over a wide range of colors,” explains the team at UbiQD. This technology can be a game-changer to reduce massive loads from large electricity grids and maybe even be integral in the planning of future cities that will run on solar energy!

Designer: UbiQD

Researchers make an RGB laser with a regular laser and quantum dots

Researchers make an RGB laser with a regular laser and quantum dots

The problem with lasers is, they tend to generate just a single color or light.To get more than one hue requires actually combining more than one type of laser to produce red, green and blue. But researchers at Brown University have figured out a solution to creating small RGB lasers by using colloidal quantum dots, or CQDs. The idea of leveraging the properties of the thin film isn't new, but past attempts to use CQDs in semiconductor lasers have failed because the necessary energy tends to wind up as heat instead of light. The work around scientists found was to excite the various dot sizes with a laser then filter out original light source. Unfortunately, the solution is far from practical for use in commercial products, but it does represent a milestone in the march towards a single-material multi-wavelength laser. For more details check out the source link.

Researchers make an RGB laser with a regular laser and quantum dots originally appeared on Engadget on Tue, 01 May 2012 06:06:00 EDT. Please see our terms for use of feeds.

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