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학술지 Fabrication and Characterization of ZnO Nanofibers by Electrospinning
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저자
박진아, 문제현, 이수재, 임상철, 정태형
발행일
200905
출처
Current Applied Physics, v.9 no.3, pp.S210-S212
ISSN
1567-1739
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.cap.2009.01.044
협약과제
08ZB1200, 정보통신 미래신기술연구사업(나노 기반 신개념 소자연구), 정태형
초록
ZnO nanofibers were fabricated by an electrospinning method using a solution containing sol-gel precursors, polymer and solvent. The as-spun and annealed ZnO/poly(4-vinyl phenol) composite fibers were characterized both structurally and electrically. The composite fibers were completely decomposed to obtain polycrystalline ZnO nanofibers. The crystallinity of ZnO nanofibers improved with increase in annealing temperature. The diameters of ZnO nanofibers after annealing above 600 °C ranged from 35 nm to 100 nm. The activation energy of ZnO nanofibers for electrical conduction was inversely proportional to the annealing temperature. The ZnO nanofibers showed CO gas sensing capacity at concentration as low as 1.9 ppm. © 2009 Elsevier B.V. All rights reserved.
키워드
Electrospinning, Gas sensor, Nanofiber, ZnO
KSP 제안 키워드
4-vinyl phenol(Poly), 5 nm, Activation Energy, Annealing temperature, CO gas sensing, Composite fibers, Sol-gel precursors, ZnO nanofibers, electrical conduction, electrospinning method, fabrication and characterization