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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 14 — Jul. 15, 2013
  • pp: 2625–2628

Graphene-coated Si mold for precision glass optics molding

Peng He, Lei Li, Jianfeng Yu, Wenyi Huang, Ying-Chieh Yen, L. James Lee, and Allen Y. Yi  »View Author Affiliations

Optics Letters, Vol. 38, Issue 14, pp. 2625-2628 (2013)

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Despite many attractive properties and well-developed micro/nano manufacturing technologies based on silicon (Si) wafers, severe adhesions between Si and glass at high temperature have limited its application as a mold material in precision glass molding. In this Letter, a coating using carbide-bonded graphene is introduced to build nonstick Si molds for glass molding. The coating has extraordinary mechanical properties and can effectively prevent Si-glass adhesion under high temperature. We demonstrated fabrications of a Fresnel lens and glass parts with micrometer pillars using graphene-coated Si molds. This newly developed process enables the use of Si as a mold material to fabricate sophisticated structures with high-precision dimensions that was not previously available. This technology will greatly improve precision glass molding process and allow high-precision low-cost glass optics to be manufactured in large quantity.

© 2013 Optical Society of America

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(220.4000) Optical design and fabrication : Microstructure fabrication
(310.1515) Thin films : Protective coatings
(160.4236) Materials : Nanomaterials

ToC Category:
Optical Design and Fabrication

Original Manuscript: May 23, 2013
Revised Manuscript: June 18, 2013
Manuscript Accepted: June 20, 2013
Published: July 15, 2013

Peng He, Lei Li, Jianfeng Yu, Wenyi Huang, Ying-Chieh Yen, L. James Lee, and Allen Y. Yi, "Graphene-coated Si mold for precision glass optics molding," Opt. Lett. 38, 2625-2628 (2013)

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