abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 08월 18일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제108회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Three-Dimensional Structure of Helical Ge3Sb2Te6 and Ge3Bi2Te6 Nanowires Using Electron Tomography

등록일
2011년 8월 1일 16시 46분 16초
접수번호
1363
발표코드
Ⅱ-MAT.P-313 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅱ>
발표형식
포스터
발표분야
재료화학
저자 및
공동저자
김한성, 박정희
고려대학교 소재화학과, Korea
Recently, interest in 3-dimensional (3D) nanostructures has been steadily increasing, owing to their attractive morphology and mechanical/electrical/optical properties. All of the helical and zigzagged structures in these previous studies were analyzed by examining their 2-dimensional (2D) projections using TEM, which provides a first insight into their size and morphology. There are, however, potentially some cases where important 3D structural information is missed or erroneous information may be obtained when using simply this technique. Electron tomography, which is a method of reconstructing the 3D morphologies from a series of 2D transmission electron microscopy (TEM) images or projections, has been successfully applied to analyze the morphology of various 1D nanostructures. We were synthesized by the thermal evaporation for the R2Te3(GeTe)n (R = Sb, Bi) alloy nanowires. Among the nanowires, the Ge3Sb2Te6 and Ge3Bi2Te6 nanowires consist of a unique helical morphology and superlattice structrures. We employed both electron tomography and high-resolution TEM images to study the 3D structure of helical Ge3Sb2Te6 and Ge3Bi2Te6 nanowires. Their 3D reconstruction images, acquired from a series of 2D projections, were obtained by high-angle annular dark field (HAADF) scanning TEM (STEM).

상단으로