Department of Chemical and Biomolecular Engineering
Korea Advanced Institute of Science and Technology

Recent Achievements

제목

[Front Cover] Size-controlled gold nano-tetradecapods with tunable optical and electromagnetic properties

Size-controlled gold nano-tetradecapodswith tunable optical and electromagnetic properties

Author : Kyeong Woo Choi, Shin Wook Kang, Do Youb Kim*, Sang Hyuk Im, Yangsun Park, Sang Woo Han* and O Ok Park*

Journal : Journal of Materials Chemistry C

Page : Vol. 4, No. 15, page 3063-3350(April, 2016)

[ABSTRACT]

The synthesis of novel branched Aunanocrystals with a well-defined and size-controllable dualistic structure, Aunano-tetradecapods, is presented. Using seed mediated growth and kineticallycontrolled reaction conditions, Au nano-tetradecapods with fourteen branchesgrown preferentially on the vertices of an Au rhombic dodecahedral core areobtained. The size of the branches is easily and readily controlled by simplyvarying the volume of HAuCl4 solution added or the reaction temperature, orboth. The localized surface plasmon resonance peak of the Au nano-tetradecapodscan be finely manipulated over a broad range of visible light through theselective tuning of their branch sizes. The enhanced and tunableelectromagnetic properties of the Au nano-tetradecapods are numericallyanalyzed using the finite difference time-domain method and they areexperimentally applied as effective surface enhanced Raman scatteringsubstrates as well. In addition, it is found that the branch/core size ratioderived from the dualistic structure is a critical parameter for determiningand controlling the properties of Au nano-tetradecapods.

관련기사 :

http://www.yonhapnews.co.kr/bulletin/2016/05/10/0200000000AKR20160510075700063.HTML?input=1195m 

 

 


 

0

추천하기

0

반대하기

첨부파일 다운로드

등록자관리자

등록일2016-05-11

조회수3,303

  • 페이스북 공유
  • 트위터 공유
  • Google+ 공유
  • 인쇄하기
 
스팸방지코드 :
사진제목
Title: A label-free and enzyme-free signal amplification strategy for a sensitive RNase H activity assay   Author: Chang Yeol Lee,‡ Hyowon Jang,‡ Ki Soo Park* and Hyun Gyu Park* (‡: equal contribution)   Journal:  Nanoscale 2017, 9, 16149-16153 Abstract: We herein describe a label-free and enzyme-free signal amplification strategy...
Title: Rationally Designed Donor–Acceptor Random Copolymers with Optimized Complementary Light Absorption for Highly Efficient All-Polymer Solar Cells   Author: Sang Woo Kim, Joonhyeong Choi, Thi Thu Trang Bui, Changyeon Lee, Changsoon Cho, Kwangmin Na, Jihye Jung, Chang Eun Song, Biwu Ma, Jung-Yong Lee, Won Suk Shin,* and Bumjoon J. Kim*   Journal: Adv. Funct...
Title: Self-Organization of Polymer Additive, Poly(2-vinylpyridine) via One-Step Solution Processing to Enhance the Efficiency and Stability of Polymer Solar Cells Author: Wonho Lee, Seonju Jeong, Changyeon Lee, Gibok Han, Changsoon Cho, Jung-Yong Lee, Bumjoon J. Kim*    Journal: Advanced Energy Materials, 2017, Vol.7, 1602812 Abstract: &...
Title: A hydrocarbon/Nafion bilayer membrane with a mechanical nano-fastener for vanadium redox flow batteries   Author: Soohyun Kim, Seongmin Yuk, Hyungyu Kim, Chanyong Choi, Riyul Kim, Jang Young Lee, Young Taik Hong and Hee-Tak Kim* Journal: Journal of Materials Chemistry A, 2017, 5, 17279-17286 Inside front cover Abstra...
Title: Stimuli-Responsive, Shape-Transforming Nanostructured Particles Author: Junhyuk Lee, Kang Hee Ku, Mingoo Kim, Jae Man Shin, Junghun Han, Chan Ho Park, Gi-Ra Yi, Se Gyu Jang, Bumjoon J. Kim*   Journal: Advanced Materials, 2017, Vol.29, 1700608 Abstract Dynamic, temperature-driven transformation of the shap...