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Questions related from Yanan Liu
What factors influence the intensity of Raman peaks? When I measure the Raman spectrum of my WSe2 monolayer and bilayer sample, I always found that there was a large difference in the intensity of...
14 April 2016 6,745 6 View
Some papers mentioned that the PL measurement was carried out using a Witec alpha 300R confocal Raman system, but they didn't mention the principle of it. So, I am wondering whether it is...
11 April 2016 6,803 2 View
I tried to transfer monolayer WSe2 from sapphire substrates to PDMS, but I failed. The transfer process is very normal. First, coat WSe2 which is on sapphire with a thin film of PMMA by spin...
06 April 2016 5,988 7 View
Sapphire substrate is one of the most-used substrate in the CVD synthesis or ALD. Some papers mentioned that the polarity of the substrate has an affect on the growth of the deposited material....
24 March 2016 2,503 3 View
Is it possible to characterize monolayer WSe2 or MoS2 by XRD? XRD is a good way to check the crystal structure of the material, but I am not sure whether it is suitable for the sample which is...
05 November 2015 8,213 11 View
Hi All, I am working on the synthesis of TMD materials on sapphire substrates by CVD. The sapphire substrates that I'm using is O-terminated, but I want to synthesize TMDs on the Al-terminated...
07 September 2015 5,761 2 View
I am using chemical vapor deposition(CVD) to synthesize WSe2. Now I still cannot get WSe2 of high quality, so I'm thinking about the influence of the substrate, and the surface atom should be...
23 April 2015 6,760 12 View
