Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5210510 | Reactive and Functional Polymers | 2011 | 5 Pages |
Abstract
Electrospinning was employed to obtain uniformly distributed Cadmium Selenide (CdSe)/Zinc Sulfide (ZnS) core shell quantum dot (QD) encapsulated nanofibers in polymeric mixture of 4:1 ratio of polystyrene (PS) and polystyrene-co-maleic anhydride (PSMA). Fluorescence and scanning electron microscopy (SEM) measurements were used to evaluate the uniform size distribution and uniformity of PS-PSMA nanofibers with high aspect ratios. The introduction of QDs only into the PS-PSMA nanofibers induced electrical conductivity. They also showed a two to three fold increase in electrical conductivity in the presence of volatile organic compounds. The obtained quantum-dot nanofibers (Qd-NFs) were 600-650Â nm thick, photostable for more than six months, and applicable for electrical conductance or gas-based sensing applications.
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Authors
Rameshwar Tatavarty, Ee Taek Hwang, Jee-Woong Park, Jun-Hyuk Kwak, Jeong-O Lee, Man Bock Gu,