Optical Properties of Crosslinked Pillar Arrays of the Composites of PMMA and CdSe/ZnS Quantum Dots
Date Issued
2006
Date
2006
Author(s)
Leen, Sheow-Dzung
DOI
en-US
Abstract
We present a simple approach to enhance the resolution of electron beam lithography, which is based on the overexposed region created by the overlap between the nearest neighbor of electron beam spots. As an illustration ,we have fabricated the periodic arrays with different lattice constants for the composite of polymethylmethacrylate (PMMA) and CdSe/ZnS core-shell quantum dots. Quite interestingly, it is found that the emission intensity can be greatly enhanced when the lattice constant is equal to an integer multiple half wavelength of the radiation. This peculiar behavior is explained in terms of the superradiant coupling between the pillars.
Subjects
聚甲基丙烯酸甲酯
硒化鎘/硫化鋅量子點
過度曝光
PMMA
CdSe/ZnS
Crosslinked
Type
thesis
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