Low-temperature photoluminescence emission of monolayer MoS2 on diverse substrates grown by CVD

doi:10.1016/j.jlumin.2018.03.052

	Low-temperature photoluminescence emission of monolayer MoS2 on diverse substrates grown by CVD
	Li, H.; Zhu, X.; Tang, Z. K.; Zhang, X. H.
	2018-07
Source Publication	JOURNAL OF LUMINESCENCE
ISSN	0022-2313
Volume	199 Pages:210-215
Abstract	Monolayer MoS2 films on three different substrates, SiO2/Si, quartz and sapphire are synthesized by the method of chemical vapor deposition (CVD). Through a series of the optical characterization methods, the films are confirmed to be uniform and continuous on micrometer scale with a reliable quality. Low-temperature photoluminescence (PL) properties of monolayer MoS2 on diverse substrates are primarily studied. As the temperature increases, a decrease in PL intensity and a red shift in PL wavelength are observed. This is because the thermal motion of the phonons becomes stronger, which means that the nonradiative recombination increases and the PL intensity decreases. And the reduction of semiconductor band gap contributes to the redshift of PL. Furthermore, the influence of the lattice structure and thermal conductivity of the substrate on the low-temperature PL of monolayer MoS2 is also discussed.
Keyword	MoS2 film Low-temperature photoluminescence Diverse substrates
DOI	10.1016/j.jlumin.2018.03.052
URL	View the original
Indexed By	SCI
Language	英语
WOS Research Area	Optics
WOS Subject	Optics
WOS ID	WOS:000430713100031
Publisher	ELSEVIER SCIENCE BV
The Source to Article	WOS
Fulltext Access	View Full-Text via DOI View Full-Text via Web of Science
Citation statistics	Cited Times [WOS]:4 [WOS Record] [Related Records in WOS]
Document Type	Journal article
Collection	University of Macau
Recommended Citation GB/T 7714	Li, H.,Zhu, X.,Tang, Z. K.,et al. Low-temperature photoluminescence emission of monolayer MoS2 on diverse substrates grown by CVD[J]. JOURNAL OF LUMINESCENCE,2018,199:210-215.
APA	Li, H.,Zhu, X.,Tang, Z. K.,&Zhang, X. H..(2018).Low-temperature photoluminescence emission of monolayer MoS2 on diverse substrates grown by CVD.JOURNAL OF LUMINESCENCE,199,210-215.
MLA	Li, H.,et al."Low-temperature photoluminescence emission of monolayer MoS2 on diverse substrates grown by CVD".JOURNAL OF LUMINESCENCE 199(2018):210-215.

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