Potentially Disruptive Technology Attracted Attention of PV Incubator Program

Typically, silicon PV cell manufacturers add a grid of thin silver lines to the cell via a screen-printing process to form the front contacts.

The TetraSun cell instead loads 50-micron-wide copper electrodes on its front contacts in a way that prevents diffusion of the metal—which can degrade performance. ''

http://www.nrel.gov/news/features/feature_detail.cfm/feature_id=4309

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