Mukesh Pandey

13 Questions 17 Answers 0 Followers

Questions related from Mukesh Pandey

How to make PDMS film (or stamp) in the laboratory in order to use it for dry transfer of thin films (< 1 mm) (pick-up and release technique)?

Polydimethylsiloxane (PDMS) stamp is used for the deterministic placement of 2D materials and the fabrication of van der Waals heterostructures.

12 December 2019 7,083 3 View

Why does the quenching of intensity occur in Graphene/MoS2 hetero-structure as a consequence of Photo-luminescence?

Can you explain in a more practical point of view?

09 September 2019 4,063 3 View

How can I increase the Responsivity of Graphene ?

Responsivity is a measure of the electrical output per optical input.

04 April 2019 3,736 7 View

Which technique (reported till date) is proved to be the best in order to get "Direct CVD grown Graphene" of high crystalline quality on an Insulator?

Is there any better technique relative to one reported by Kwon and co-workers, The interfacial segregation growth technique using Graphite powder coating on a poly-crystalline Ni layer (deposited...

02 February 2019 7,962 4 View

Tell me the technique by which Cu substrate can have more (111) facets, so as to get high quality, large- area, uniform CVD grown monolayer graphene?

Hexagonal lattice of Cu (111) (crystal plane) favors the high quality of CVD grown Graphene. Graphene have preffered orientations and similar crystallographic geometry as that of the underlying...

02 February 2019 2,109 3 View

What are "Kohn anomalies" in terms of Raman Scattering Process in Graphene?

Concept of "Kohn Anomalies" is a historic background concept, when we deal with the characterization of Graphene sample.

02 February 2019 9,436 1 View

Do the properties of bernal stacked bilayer graphene exactly match with the mechanically stacked (AB_AB like) bilayer graphene ?

Is the processes of stacking the monolayers mechanically and exfoliating a bernal stacked multilayer graphene to yield a perticular microstructure "reversible" in terms of optical and electrical...

02 February 2019 2,331 5 View

Twisted bilayer Graphene shows superconductivity. Do the pi- electrons moving between the two layers form cooper pair or is it in other way around?

stacking one layer on another monolayer of graphene in a 'magic angle' changes the properties of the bilayer significantly. Which phenomenon will be responsible for the superconductivity. I...

01 January 2019 2,434 7 View

What is the physical significance of berry's phase in solids?

berry's phase is also said to be a 'spinor property'. why is it so important in solid state physics?

01 January 2019 8,549 3 View

How can we explain the concept of isospin and real spin in the graphene?

Degeneracy of electrons in graphene is 4. 2 for isospin and 2 for real spin. How do we get the degeneracy here?

01 January 2019 7,889 5 View

Can a Bilayer graphene show the electronic structural properties as that of an isolated monolayer graphene?

Is there a way, to get the same electronic structure of the Bilayer graphene and isolated monolayer graphene?

01 January 2019 1,900 8 View

What are the Von-Hove singularities in the density of states' curve of graphene?

Von- Hove singularities are said to be non-smooth points corresponding to M-points in first B.Z. What do they actually signify?

01 January 2019 4,966 3 View

Do you think that Doped Graphene can replace the Silicon based Electronics? Argue on scientific aspects.

Graphene Electronics Vs Silicon Electronics !! Silicon has a band gap of 1.1 eV but graphene is zero band gap semi metal. Therefore graphene has a very less scope in achieving the goal. Further,...

01 January 1970 8,543 4 View