BROWSE

Related Scientist

Researcher

나노 구조 물리 연구단
나노구조물리 연구단
more info

Dependence of Raman and absorption spectra of stacked bilayer MoS2 on the stacking orientation

Cited 5 time in webofscience Cited 0 time in scopus
225 Viewed 7 Downloaded
Title
Dependence of Raman and absorption spectra of stacked bilayer MoS2 on the stacking orientation
Author(s)
Seki Park; Hyun Kim; Min Su Kim; Gang Hee Han; Jeongyong Kim
Publication Date
2016-09
Journal
OPTICS EXPRESS, v.24, no.19, pp.21551 - 21559
Publisher
OPTICAL SOC AMER
Abstract
Stacked bilayer molybdenum disulfide (MoS2) exhibits interesting physical properties depending on the stacking orientation and interlayer coupling strength. Although optical properties, such as photoluminescence, Raman, and absorption properties, are largely dependent on the interlayer coupling of stacked bilayer MoS2, the origin of variations in these properties is not clearly understood. We performed comprehensive confocal Raman and absorption mapping measurements to determine the dependence of these spectra on the stacking orientation of bilayer MoS2. The results indicated that with 532-nm laser excitation, the Raman scattering intensity gradually increased upon increasing the stacking angle from 0° to 60°, whereas 458-nm laser excitation resulted in the opposite trend of decreasing Raman intensity with increasing stacking angle. This opposite behavior of the Raman intensity dependence was explained by the varying resonance condition between the Raman excitation wavelength and C exciton absorption energy of bilayer MoS2. Our work sheds light on the intriguing effect of the subtle interlayer interaction in stacked MoS2 bilayers on the resulting optical properties. © 2016 Optical Society of America
URI
https://pr.ibs.re.kr/handle/8788114/2874
ISSN
1094-4087
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
Dependence of Raman and absorption spectra.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse