| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.1031 |
| 발표분야 |
[주제 12] 화학공학일반(부문위원회 발표) |
| 제목 |
Sculpting the Plasmonic Responses of Nanoparticles by Directed Electron Beam Irradiation |
| 초록 |
Spatial confinement of matter in functional nanostructures has propelled these systems to the forefront of nanoscience, both as a playground for exotic physics and quantum phenomena and in multiple applications including plasmonics, optoelectronics, and sensing. In parallel, the emergence of monochromated electron energy loss spectroscopy (EELS) has enabled exploration of local nanoplasmonic functionalities within single nanoparticles and the collective response of nanoparticle assemblies, providing deep insight into associated mechanisms. Here, the atomic-sized probe of the scanning transmission electron microscope is used to perform precise sculpting and design nanoparticle configurations. Using low-loss EELS, dynamic analyses of the evolution of the plasmonic response are provided. It is shown that within self-assembled systems of nanoparticles, individual nanoparticles can be selectively removed, reshaped, or patterned with nanometer-level resolution, effectively modifying the plasmonic response in both space and energy. |
| 저자 |
조신흠1, Kevin M. Roccapriore2, Andrew R. Lupini3, Delia J. Milliron4, Sergei V. Kalinin3
|
| 소속 |
1계명대, 2화학공학부, 3Center for Nanophase Materials Sciences, 4Oak Ridge National Laboratory |
| 키워드 |
재료(Materials) |
| E-Mail |
|
| 원문파일 |
초록 보기 |
