Grain boundaries and coincidence site lattices in the corneal nanonipple structure of the Mourning Cloak butterfly

• Ken C. Lee and
• Uwe Erb

Beilstein J. Nanotechnol. 2013, 4, 292–299, doi:10.3762/bjnano.4.32

• materials is made and the importance of such arrangements in terms of nipple packing density, corneal lens curvature and potential optical properties is discussed. Keywords: butterfly-eye structure; coordination defects; sigma grain boundaries; Introduction The structure of moth and butterfly eyes consist