Cracked gallium arsenide solar cell films

Date:10 April 2012 Tags:, , , ,

Cracked gallium arsenide solar cell films (50X)
6th Place, Nikon Small World 2011 competition
Dennis Callahan
California Institute of Technology
Pasadena, California, USA

Small World is regarded as the leading forum for showcasing the beauty and complexity of life as seen through the light microscope. For over 30 years, Nikon has rewarded the world’s best photomicrographers who make critically important scientific contributions to life sciences, bio-research and materials science. The entry deadline for the 2012 competition is 30 April. If you have an image that you believe has a good chance of winning, find out more by visiting

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