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학술발표회초록보기

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  • 08월 18일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제108회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Cobalt Selenide Nanowires synthesized by an atmospheric pressure chemical vapor deposition (APCVD)

등록일
2011년 8월 1일 15시 03분 41초
접수번호
1183
발표코드
Ⅲ-PHYS.P-5 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 <발표Ⅲ>
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
방수경, 고경문, 김태규
부산대학교 화학과, Korea
Cobalt selenide (CoSe) nanowires have been synthesized by an atmospheric pressure chemical vapor deposition (APCVD) on Au thin film coated Si(100) substrate. Au thin film derives an Au-catalyzed vapor-liquid-solid (VLS) growth of CoSe nanowires as catalyst. We used Cobalt chloride (CoCl2) beads and Selenium (Se) powder as precursors. Due to the considerable difference in melting points of two precursors, graphite powder have been mixed with Se powder to control the vaporization rate of Se during the experiment. The as-synthesized CoSe nanowires were investigated by scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDS) and transmission electron microscopy (TEM). They revealed that the CoSe nanowires were 60-100 nm in diameter, 10-20 μm in length and homogeneous. Additionally, X-ray diffraction (XRD) method, superconducting quantum interference device (SQUID) magnetometer, zero-filed-cooled (ZFC) and field-cooled (FC) magnetization measurements were used to investigate the structure and the magnetic properties of synthesized CoSe nanowires.

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