Green Chemistry Organic Solar Cells

In contrast to conventionally used silicon which is manufactured by energy intensive melting processes organic materials can be applied directly from solutions onto a carrier film or glass carrier.

Green chemistry organic solar cells.

Organic solar cells oscs are regarded as low cost and potentially environmentally benign sources of power. This is the amount of time a solar cell must operate before it generates the same amount of energy as its embodied energy. Organic photovoltaic solar cells nrel has strong complementary research capabilities in organic photovoltaic opv cells transparent conducting oxides combinatorial methods molecular simulation methods and atmospheric processing. The p type silicon is produced by adding atoms such as boron or gallium that have one less electron in their outer energy level than does silicon.

Embodied energy is part of an even broader picture. A solar cell is made of two types of semiconductors called p type and n type silicon. Oscs usually rely on a blend of electron donating and electron accepting semiconductors with specific energetic optical and transport properties in order to achieve efficient harvesting of sunlight and photocurrent generation. Compared to silicon based solar cells they are tremendously effective in indoor lighting conditions.

Organic solar cells come into their own indoors. They can also be made moldable transparent or. Handbook of organic materials for optical and opto electronic devices 2013. P conjugated semiconducting polymers the components of oscs responsible for.

Organic solar cells oscs are one of the emerging photovoltaic pv technologies and are classified as third generation solar cells with organic polymer material as the light absorbing layer. Organic solar cells usually consist of two different organic components possessing the necessary semiconductor properties. Organic solar cells oscs offer a relevant case in point when considering challenges imposed by green manufacturing. Silicon solar cells have a 1 65 to 4 12 year energy payback time while some organic solar cells and perovskites have energy payback times of less than half a year.