Solar Cell Components without Using Fossil Fuels
Cleaner than clean energy: BioSolar creates new plastic backing for photovoltaic cells out of cotton and castor beans rather than petroleum products
Solar energy is touted by some as the solution to the world's energy woes. But the process of making the various components requires fossil fuels, both for power and for the components themselves, some of which are based on petroleum.
A new company, BioSolar, aims to kick petroleum to the curb, at least in the realm of building solar photovoltaics, cells of crystalline silicon that turn sunlight into electricity. Such photovoltaic cells rely on conventional plastic polymers to provide a protective backing, also known as backsheets. Those plastics are made from—you guessed it—petroleum.
BioSolar starts with used cotton rags and turns them into a film of cellulose, a natural fiber. They then blend this film with a type of nylon made from castor beans by Philadephia-based Arkema, Inc. to make the so-called BioBacksheet. Initial testing by the company at the National Renewable Energy Laboratory shows that this flexible plastic backsheet lasts as long or longer than conventional ones, and keeps out just as much moisture.
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Solar energy is touted by some as the solution to the world's energy woes. But the process of making the various components requires fossil fuels, both for power and for the components themselves, some of which are based on petroleum.
A new company, BioSolar, aims to kick petroleum to the curb, at least in the realm of building solar photovoltaics, cells of crystalline silicon that turn sunlight into electricity. Such photovoltaic cells rely on conventional plastic polymers to provide a protective backing, also known as backsheets. Those plastics are made from—you guessed it—petroleum.
BioSolar starts with used cotton rags and turns them into a film of cellulose, a natural fiber. They then blend this film with a type of nylon made from castor beans by Philadephia-based Arkema, Inc. to make the so-called BioBacksheet. Initial testing by the company at the National Renewable Energy Laboratory shows that this flexible plastic backsheet lasts as long or longer than conventional ones, and keeps out just as much moisture.
More from here
PermaLink - Solar Cell Components without Using Fossil Fuels
