Most transparent material

Most transparent material
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Who
University of Colorado Boulder, Ivan Smalyukh
What
97-99 percentage
Where
United States (Boulder)
When
07 June 2019

The most transparent material has a total visible transmission percentage of 97-99% and was achieved by Ivan Smalyukh and University of Colorado Boulder (all USA) in Boulder, Colorado, USA, on 7 June 2019.

In comparison, single clear glass is around 92%.