New graphene solar cell makes rain-powered electricity

The Intertubes have been buzzing with news of an all-weather solar cell that produces an electrical current from falling raindrops. Table d gaskets The research is still far from the marketplace, but it’s yet another indication that the growth potential of the global solar industry shows no signs of slowing down as new technologies bring on succeeding waves of efficiency improvements and lower costs.

All else being equal, an all-weather solar cell would expand the geographical map for cost-effective solar installations in rainy regions, including parts of the US. Gaz 67 sprzedam In fact, you get a twofer, because rain removes dust and debris from the surface of solar panels, providing a no-cost way to keep them humming along optimally during sunny weather.

The new rain-powered graphene solar cell was developed by the leading marine research institute Ocean University of China, in collaboration with Yunnan Normal University.

To wrap your mind around the all-weather concept, consider that rainwater is not pure H20. Tortugas ninjas In its recently published study, A Solar Cell That Is Triggered by Sun and Rain, the Ocean University research team describes rain as a giant “salt reservoir full of positively and negatively charged ions.”

The foundation of the device is a rather conventional dye-sensitized solar cell deploying the familiar indium tin oxide formula. 4 gas giants For those of you keeping score at home, the dye is another standard item in the solar toolkit, the ruthenium-based N-719.

That accounts for the sun-powered part of the equation. Eur j gastroenterology hepatology impact factor The rain-powered part comes in with a “whisper-thin” coating of graphene. Gas you up When rainwater comes into contact with graphene ( this stuff), its salts dissociate, as explained in this helpful rundown from

…the water becomes enriched in positive ions and the graphene becomes enriched in delocalized electrons. Electricity in india travel This results in a double-layer made of electrons and positively charged ions, a feature known as a pseudocapacitor. Electricity and magnetism worksheets high school The difference in potential associated with this phenomenon is sufficient to produce a voltage and current.

The solar conversion efficiency of the device clocks in at a maximum of 6.53 percent for simulated sunlight. Hp gas online booking mobile number You’ll have to read the full study for details on the rain-powered output, but the abstract describes it as “a voltage of hundreds of microvolts.”

Those figures don’t sound all that impressive, but the point of early stage research is to identify promising pathways for improvement, and the team is confident that its findings will open up the solar map in new ways. Gas prices going up in nj Is That The Best You Got, Koch Bros?

This is just one of many other new solar R&D projects (here’s another recent example) indicating that the solar industry can continue to look forward to falling costs and rising efficiencies.

One case in point is indium tin oxide (ITO). Electricity for kids While ITO has been the go-to material for transparent thin film solar cells, it is relatively brittle. 4 gas laws A team at Brookhaven National Laboratory has been noodling around with the idea of replacing it with a combination of graphene and plain window glass, so there’s that.

In the context of all this activity, it’s worth noting that the anti-solar lobby seems to have stopped trying to back up its position with any kind of solid public policy research.

The latest major effort occurred last year, when Utah State University’s Institute of Political Economy (IPE) came out with a pair of reports purporting to blow up the case for wind and solar subsidies.

Both reports have a half-hearted, paint-by-numbers feel. Gas zone edenvale Here’s a snippet from the Executive Summary for the solar report, titled, “Reliability of Renewable Energy: Solar.”

…IPE determined that using tax dollars to mandate and subsidize solar power is not a worthwhile investment because the high costs of overcoming solar power’s unreliability outweigh its limited environmental benefits. Gas 76 First, solar power is heavily dependent on government subsidies and mandates, and the solar industry is not economically viable without them…

That subsidy argument is more than a bit disingenuous considering the massive, generations-long record of preferential treatment accorded the US fossil fuel industry, but consider the source. Electricity quizlet Back in 2012 IPE received a $1.54 million grant from the fossil-friendly Charles Koch Foundation, as reported by The Salt Lake Tribune:

The USU donation will be used to hire two tenure-track professors and pay for programs and building costs at the Jon M. 1 electricity unit is equal to how many kwh Huntsman School of Business, specifically in its Institute of Political Economy and in Huntsman Hall.

Not helping things in the scholarly merit department is the author list of the solar report, which consists of Randy T. Electricity 220 volts wiring Simmons ( this guy) of Utah State University, Ryan M. J gastroenterology impact factor Yonk of Utah State University, and Jordan Lofthouse of the Koch-funded think tank Strata Policy ( these guys).

Actually, all three authors are connected to Strata. 7 gas station Simmons and Yonk were instrumental in the founding of Strata back in 2003, with the idea of creating this:

…an environment where students would become part of an academic apprenticeship — where they would be trained as policy analysts and professional researchers — without the traditional academic restraints found in the classroom.

Maybe Strata should not have so enthusiastically thrown out the baby with the bathwater when it comes to traditional academic restraints. Gas dryer vs electric dryer When Simmons’s Koch connections came to light last year, Utah State posted a permanent disclaimer/disclosure/apology on its website. Gsa 2016 catalog Among other academic shortcomings, the post notes that Simmons seems unaware of “the most basic statistical principle: correlation is not causation.”