Layer-in-layer hierarchical nanostructures fabricated by combining holographic polymerization and block copolymer self-assembly.
We report the combination of top-down and bottom-up nanomanufacturing techniques to fabricate active, hierarchically structured volume reflection gratings. Holographic polymerization (H-P) formed lamellar structures of approximately 200 nm in thickness, confining a block copolymer (BCP) to approximately 100 nm domains. Subsequently, the BCP self-assembles into nanolayers with a period of approximately 21 nm. We envisage that this approach opens a gateway to fabricating hierarchical nanostructures at different length scales.
Birnkrant
Michael J
MJ
A. J. Drexel Nanotechnology Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104, USA.
Li
Christopher Y
CY
Natarajan
Lalgudi V
LV
Tondiglia
Vincent P
VP
Sutherland
Richard L
RL
Lloyd
Pamela F
PF
Bunning
Timothy J
TJ
D003460:Crystallization / Q000379:methods*; D006696:Holography / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D013499:Surface Properties
D046911:Macromolecular Substances; D011108:Polymers