Scholars@Duke publication: Photoluminescence and Raman mapping characterization of WS2 monolayers prepared using top-down and bottom-up methods

Photoluminescence and Raman mapping characterization of WS2 monolayers prepared using top-down and bottom-up methods

Publication , Journal Article

Wang, XH; Ning, JQ; Zheng, CC; Zhu, BR; Xie, L; Wu, HS; Xu, SJ

Published in: Journal of Materials Chemistry C

January 1, 2015

Two kinds of tungsten disulfide (WS2) monolayers, respectively prepared using top-down and bottom-up approaches, were studied with Raman and photoluminescence (PL) mapping techniques. By mapping the intensities of the two characterized phonon modes of WS2, the monolayer region can be quickly selected. Such selection by mapping the intensities is more conclusive than by comparing the small shift in phonon peak position. Also, PL mapping yields more information regarding the uniformity and quality of the monolayers than does Raman mapping. We also show that the focused laser may cause substantial damage to the crystal lattice of monolayers for long-duration mappings.

Duke Scholars

Author Changcheng Zheng DKU Faculty

Published In

Journal of Materials Chemistry C

DOI

10.1039/c5tc00016e

EISSN

2050-7526

ISSN

2050-7534

Publication Date

January 1, 2015

Volume

Issue

Start / End Page

2589 / 2592

Related Subject Headings

4016 Materials engineering
3406 Physical chemistry
3403 Macromolecular and materials chemistry
0912 Materials Engineering
0306 Physical Chemistry (incl. Structural)
0303 Macromolecular and Materials Chemistry

Citation

APA

Chicago

ICMJE

MLA

NLM

Wang, X. H., Ning, J. Q., Zheng, C. C., Zhu, B. R., Xie, L., Wu, H. S., & Xu, S. J. (2015). Photoluminescence and Raman mapping characterization of WS2 monolayers prepared using top-down and bottom-up methods. Journal of Materials Chemistry C, 3(11), 2589–2592. https://doi.org/10.1039/c5tc00016e

Wang, X. H., J. Q. Ning, C. C. Zheng, B. R. Zhu, L. Xie, H. S. Wu, and S. J. Xu. “Photoluminescence and Raman mapping characterization of WS2 monolayers prepared using top-down and bottom-up methods.” Journal of Materials Chemistry C 3, no. 11 (January 1, 2015): 2589–92. https://doi.org/10.1039/c5tc00016e.

Wang XH, Ning JQ, Zheng CC, Zhu BR, Xie L, Wu HS, et al. Photoluminescence and Raman mapping characterization of WS2 monolayers prepared using top-down and bottom-up methods. Journal of Materials Chemistry C. 2015 Jan 1;3(11):2589–92.

Wang, X. H., et al. “Photoluminescence and Raman mapping characterization of WS2 monolayers prepared using top-down and bottom-up methods.” Journal of Materials Chemistry C, vol. 3, no. 11, Jan. 2015, pp. 2589–92. Scopus, doi:10.1039/c5tc00016e.

Wang XH, Ning JQ, Zheng CC, Zhu BR, Xie L, Wu HS, Xu SJ. Photoluminescence and Raman mapping characterization of WS2 monolayers prepared using top-down and bottom-up methods. Journal of Materials Chemistry C. 2015 Jan 1;3(11):2589–2592.

Published In

Journal of Materials Chemistry C

DOI

10.1039/c5tc00016e

EISSN

2050-7526

ISSN

2050-7534

Publication Date

January 1, 2015

Volume

Issue

Start / End Page

2589 / 2592

Related Subject Headings

4016 Materials engineering
3406 Physical chemistry
3403 Macromolecular and materials chemistry
0912 Materials Engineering
0306 Physical Chemistry (incl. Structural)
0303 Macromolecular and Materials Chemistry