The Effects of Compositional Variation on Magnetic Properties of CoFe/Au Nanobarcodes
- 주제(키워드) CoFe/Au nanobarcodes , nanowire , electropdeposition , AAO template
- 발행기관 고려대학교 대학원
- 지도교수 김영근
- 발행년도 2012
- 학위수여년월 2012. 2
- 학위구분 석사
- 학과 일반대학원 신소재공학과
- 원문페이지 38 p
- 실제URI http://www.dcollection.net/handler/korea/000000032494
- 본문언어 영어
- 제출원본 000045697567
초록/요약
A multi-component and multi-segment nanostructure capable of performing the multiplexing, can be a powerful option for the biomolecular detection. Here we report the synthesis of multifunctional magnetic nanobarcodes via pulsed electrodeposition method in one bath. Alternatively layered CoFe alloy and Au segments from two different electrical potentials formed the multilayered nanostructure, of which structure and properties were analyzed by SEM, TEM, XRD, EDX, ICP-AES and VSM. The obtained nanobarcodes with three different cases of Co-rich, CoFe even and Fe-rich exhibit different magnetic characteristics as a result of the compositional variations.
more목차
Chapter 1. Introduction ……………………………..………….……… 1
Chapter 2. Theoretical Background …….…….………….….……… 3
2.1 Electrodeposition Method ……….……………….….……….……. 3
2.2 CoFe Alloy Magnetic Material .…….…….….………………… 5
Chapter 3. Experimental Section …….…….………….….…………. 6
3.1 Nanobarcodes Fabrication …….…….………….….……….… 6
3.2 Instrumental Observation ….………….….………………… 10
Chapter 4. Results and Discussion ………….……….….….……… 11
4.1 Morphological and Structural Analysis ……..…….…….……. 11
4.2 Compositional Variations …….……….….….……….……… 15
4.3 Magnetic Characteristics .….…….…….….….……….……… 20
Chapter 5. Conclusions …….………………………………………. 28
Acknowledgement ……………….…………….………………………. 29
References …………………….…………….……………………….…30
