Making Nanowire Lasers
Feb. 11, 2016 — Scientists have found a simple new way to produce nanoscale wires that can serve as bright, stable and tunable lasers — an advance toward using light to transmit data.
Category: sustainability – Page 627
Now, that’s a concept! Spray paint from a can that harnesses solar energy. Imagine, you can spray paint windows, patio tables, your car, a bike, etc. with Solar Spray Paint in a can; and watch your gadgets get charged. It is almost like the “Computer Screen in the Can” idea that I had last week. Geez, wonder if she could partner with me on that concept?
Researcher aims to engineer spray paint that can convert sun’s elusive energy to electricity.
German solar technology firm Heliatek claims to have outdone itself by setting a new world record for directly converting sunlight into electricity using organic photovoltaic cells. In 2012 it claimed a then world record 10.7 percent conversion efficiency and said it was gunning for 15 percent in the near future. This week it announced it’s halfway there, achieving a new record of 13.2 percent.
Heliatek says its R&D teams achieved the new record using a multi-junction cell and that the measurement was independently confirmed by Fraunhofer CSP’s solar testing facility. While traditional silicon cells have achieved higher levels of conversion efficiency, organic cells are also pursued because they can be produced more cheaply and are also more flexible.
In fact, the firm claims that “the excellent low light and high temperature behavior of the organic semiconductor” in the new cells makes them equivalent to the electricity generation capability of conventional solar cells with 16–17 percent efficiency under real world conditions.
Tesla’s next car will be a lot cheaper than previously expected.
In fact, it could cost as little as $25,000.
CEO Elon Musk confirmed last year that its first mass market car, the Model 3, would price at about $35,000.
One way or another, via government research or the countless new startups, fusion is well on it’s way.
Chinese scientists have managed to create a hydrogen gas that is three times hotter than the sun.
The artificial solar energy could eventually be used as an inexhaustible source of power, ending reliance on fossil fuels and solving the world energy crisis.
Chinese boffins created the gas in a huge magnetic fusion reactor at the Institute of Physical Science in Hefei.
Danaher’s Instruments of Change — If you feel like your industry that has always been on a slow & stable growth curve is now under greater pressure to change; you’re not alone. Recent indicators are showing with the latest changes in tech and consumers (namely the millennials as the largest consumers today); industries have been shaken up to perform at new levels like never before or companies in those industries will cease to be relevant.
Doing well by doing good is now expected for businesses, and moral leadership is at a premium for CEOs. For today’s companies to maintain their license to operate, they need to take into account a range of elements in their decision making: managing their supply chains, applying new ways of measuring their business performance that include indicators for social as well as commercial returns, and controlling the full life cycle of their products’ usage as well as disposal. This new reality is demonstrated by the launch last September of the Sustainable Development Goals (SDGs), which call on businesses to address sustainability challenges such as poverty, gender equality, and climate change in new and creative ways. The new expectations for business also are at the heart of the Change the World list, launched by Fortune Magazine in August 2015, which is designed to identify and celebrate companies that have made significant progress in addressing major social problems as a part of their core business strategy.
Technology and millennials seem to be driving much of this change. Socially conscious customers and idealistic employees are applauding companies’ ability to do good as part of their profit-making strategy. With social media capable of reaching millions instantly, companies want to be on the right side of capitalism’s power. This is good news for society. Corporate venturing activities are emerging, and companies are increasingly leveraging people, ideas, technology, and business assets to achieve social and environmental priorities together with financial profit. These new venturing strategies are focusing more and more on areas where new partnerships and investments can lead to positive outcomes for all: the shareholders, the workers, the environment, and the local community.
Furthermore, this is especially true in the technology sector. More than 25% of the Change the World companies listed by Fortune are tech companies, and four are in the top ten–Vodafone, Google, Cisco Systems, and Facebook. Facebook’s billionaire co-founder and CEO, Mark Zuckerberg, and his wife have helped propel the technology sector into the spotlight as a shining beacon of how to do good and do well. Zuckerberg and Priscilla Chan pledged on December 1, 2015, to give 99 percent of their fortune to charity. Facebook shares are valued between $40 and $45 billion, which makes this a very large gift. The donations will initially be focused on personalized learning, curing disease, connecting people, and building strong communities.
As oil was to Saudi Arabia, could solar be to Morocco?
Morocco has turned on its enormous solar power plant in the town of Ourrzazate, on the edge of the Saharan desert. The plant already spans thousands of acres and is proficient of generating up to 160 megawatts of power. It’s already one of the largest solar power grids in the world, capable of being seen from space. And it’s only going to get bigger.
The present grid, called Noor I, is just the first phase of a planned project to bring renewable energy to millions living in Morocco. It will soon be followed by expansions, Noor II and Noor III, that will add even more mirrors to the present plant. Once the project is finished around 2018, the whole grid will cover 6,000 acres. It will be capable of producing up to 580 megawatts of power, comparable to that of a small nuclear reactor.
Tesla CEO Elon Musk, speaking at the Hyperloop Pod Competition this week, said he has been thinking more and more about electric jets.
New method to make purify water and eliminate clean water shortages in the future by purifying waste water via artificial leafing.
For years, scientists have been pursuing ways to imitate a leaf’s photosynthetic power to make hydrogen fuel from water and sunlight. In a new twist, a team has come up with another kind of device that mimics two of a leaf’s processes — photosynthesis and transpiration — to harness solar energy to purify water. Their development, reported in the journal ACS Applied Materials & Interfaces, could help address issues of water scarcity.
More than 1 billion people around the world live in areas where clean water is hard to come by, and that number will likely rise as the population grows.
One possible solution to the shortage is to clean up wastewater or other water sources that would otherwise not be drinkable or usable for agriculture. But methods to scrub contaminants from water mostly rely on conventional energy sources. To address the water problem without adding to the dependence on fossil fuels, Peng Tao, Wen Shang and colleagues developed a way to purify water by copying the way green leaves work.
I shared this same point of view yesterday; and glad to see Princeton shares the same perspective on Quantum and it’s abundant capabilities. Again; Quantum is going to truly change (if not everything) almost everything that we consume, use, and interact with even in raw material enrichment will benefit from Quantum.
Claire White, an assistant professor of civil and environmental engineering and the Andlinger Center for Energy and the Environment, studies ways to make building materials more sustainable. It turns out that cement production creates a lot of carbon dioxide, so much that it accounts for roughly 5 to 8 percent of man-made carbon dioxide emissions globally. White and her team are developing new types of cement using industrial byproducts such as coal fly ash and blast-furnace slag. They make these materials more durable by adding nanoparticles.
Watch Assistant Professor Claire White explain her research on a more sustainable type of cement.