Solar energy: solar film, the solar panel of the future?

The future might be thin film

The developement of technologies is accelerating at a high rate. Where only a short 30 years ago solar panels were largely unheard of and considered highly advanced technology, the first generation is already outdated and the second generation will soon follow suit. Many people have started their own solar farm, helped along by government stimulation programs and the enormous rise in the cost of fossil fuels. They have formed co-operative efforts and use smartgrids to share the energy thus collected off their rooftops and in sharing they have found that they can be selfsufficient much easier than when everyone has their own closed circuit. So sharing is the name of the game, with smart computer programmes measuring the relative use of everyone connected to the smartgrid. Still for a lot of people solar panels are prohibitively expensive. The market for renewable energy resources is ready for the next breakthrough in technology making gathering solar energy available to even low income homes and families. And it might just be thin film.

Red light, blue light, all can be used

Thin film is a layer thin as can be, we're talking nanometers here. I don't pretend to know everything about the technologie that produces these thing films, but it's the same type of process that I wrote about in the blog I did on Magnetron sputtering. A thin film has to have certain properties that allow it to convert speed of the sun's fotons into energy. Now the classic first and second generation solar cells use only the red light out of the whole spectrum that the sun sends down. Red light is less energetic than blue light, but less blue light reaches the earths serface, so that sorta balances out. The idea now, with these thin film technologies is to create layers of thin film in which both the red light energy and the blue light energy can be converted into useable energy. This would effectively increase the output of solar panels manifold. A single layer thin film could already mimic the results of the (relatively expensive) solar panels, but a multilayer thin film is expected to increase efficiency enormously.

Imagining the future now...

Thin film can be mass produced, simply, effectively and for all kinds of purposes including solar energy. You can go to the hardware store and buy solar film for your windows (they're so thin that they are see through anyway, so why not put them on all your windows or at least the ones that get the most sunlight). Then you plug your household appliances into your windows and of course, because we've already learned the advantages of sharing, we build a smartgrid for every office building, every block of housing. Every empty building is turned into a powerplant by covering it with thin solar film from Vergason for instance and because it's so cheap, we cut our cost of living radically (incidentally ending the world wide financial crisis we're now in the middle of)

I don't know the particulars, but wireless electricity seems to be the next necessary step to connect people without needing a world of infrastructure and wires going everywhere. Because of all this interdependent technology we're also getting to know our neighbors better and because of this we're investing in each other more, becoming less dependent on the money grabbers at the utility companies and at the same time let's also get smart and share our wifi instead of letting the telecom companies bleed us dry. The future then finds us interconnected on a global scale while being interdependent on a local scale. Now there's a twist on globalization!