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Conductive quantum dot-encapsulated electrospun nanofibers from polystyrene and polystyrene-co-maleic anhydride copolymer blend as gas sensors
- Authors
- Tatavarty, Rameshwar; Hwang, Ee Taek; Park, Jee-Woong; Kwak, Jun-Hyuk; Lee, Jeong-O; Gu, Man Bock
- Issue Date
- Feb-2011
- Publisher
- ELSEVIER
- Keywords
- Electrospun nanofibers; Quantum dots; Conductivity; Gas sensor
- Citation
- REACTIVE & FUNCTIONAL POLYMERS, v.71, no.2, pp.104 - 108
- Indexed
- SCIE
SCOPUS
- Journal Title
- REACTIVE & FUNCTIONAL POLYMERS
- Volume
- 71
- Number
- 2
- Start Page
- 104
- End Page
- 108
- ISSN
- 1381-5148
- 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 600650 nm thick, photostable for more than six months, and applicable for electrical conductance or gas-based sensing applications. (C) 2010 Elsevier Ltd. All rights reserved.
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Collections - Graduate School > Department of Biotechnology > 1. Journal Articles
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Related Researcher
- Gu, Man Bock
- Department of Biotechnology