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Thickness dependent Optical Characteristics of 1D Block Copolymers
- Authors
- Lee, Sung Woo; Park, Na Rae; Shin, Dong Myung
- Issue Date
- 2011
- Publisher
- CRC PRESS-TAYLOR & FRANCIS GROUP
- Keywords
- Block Copolymer; Photonic Crystals; BCP; Poly(styrene-block-2-pyridine)
- Citation
- NANOTECHNOLOGY 2011: ELECTRONICS, DEVICES, FABRICATION, MEMS, FLUIDICS AND COMPUTATIONAL, NSTI-NANOTECH 2011, VOL 2, pp.34 - 37
- Journal Title
- NANOTECHNOLOGY 2011: ELECTRONICS, DEVICES, FABRICATION, MEMS, FLUIDICS AND COMPUTATIONAL, NSTI-NANOTECH 2011, VOL 2
- Start Page
- 34
- End Page
- 37
- Abstract
- Block copolymers (BCPs) have been investigated for fabricating functional nanomaterials due to their properties of self-assembly. We prepared polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP) lamellar films which is hydrophobic block-hydrophilic polyelectrolyte block polymer have 57 kg/mol-b-57kg/mol. The lamellar stacks are obtained by exposing the spin coated film under chloroform. The P2VP blocks were then quaternized and crosslinked to various extents using 5wt% of iodomethane.The quarternized films with thickness varied from 0.43 mu m (446 inn absorption maximum) to 0.25 mu m (478 nm absorption maximum). The band shift as well as scattering around 400 nm clearly suggests that the each layer thickness changed accompanying with the roughness of the layer interfaces.
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