How to know the relationship between the mobility and Carrier concentration density in graphene?

More Amr Attia Abuelwafa's questions See All

How can we improve the sheets resistance of graphene?

improve the sheets resistance of graphene

03 April 2018 8,700 1 View

What is the role of metal catalysts in graphene synthesis?

Such as the Cu, Fe, Ag and Au, which are typical catalysts for graphene by CVD and Ion Beam

03 April 2018 5,013 0 View

How can we measure the Differential reflectance spectra(DRS) for the Thin film?

The optical set-up for difference reflectance spectroscopy (DRS) measurements

08 September 2017 5,653 0 View

How can I control and measure the thickness of thin films prepared by spin coating?

spin coating THICKNESS OF P3HT: PCBM

31 December 2016 2,890 8 View

How can I measure the Mobility of Electrons and Holes in organic solar cells using Mott-Gurney law?

Mott-Gurney law the space-charge limited current (SCLC) The hole mobility in the hole-only devices and the electron mobility in the electron-only devices

31 December 2016 3,464 2 View

How we can explain p-type organic leads to the upward (downward) surface band bending of n-Si (p-Si)?

p-type organic/p- Si p-type organic/n- Si

11 December 2016 8,843 0 View

What is the difference between back surface field BSF at Al/ p-Si and Al/ n-Si?

Impedance Spectroscopy has been used to analyse the back surface field BSF at Al/ p-Si and Al/ n-Si

11 December 2016 3,218 0 View

How to calculate CCS for Sodiated adduct ions and Multiply Charged Ions?

I'm currently working on calculating the collision cross section (CCS) for various ions, and I'm facing challenges when dealing with sodiated and multiply charged ions. Most of the resources I’ve...

08 August 2024 8,329 0 View

Is changing the medium during the experiment overestimate the results?

I am experimenting with cancer and non-cancer cells in a 12-well plate for 4 days with a seeding density 1*10^4/well, however, I noticed that the control group growth rate slows down on D3. Should...

07 August 2024 2,283 2 View

Is it possible to plot the atom-projected band structure using GPAW?

Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...

07 August 2024 269 3 View

Should I include H atom into C3N5 when i am doing DFT modelling?

Hi all, my experimental XPS results shown that my C3N5 sample consists of N-H bond, hence in this case I should incorporate the N-H bond into my DFT modelling. However, I do notice several papers...

07 August 2024 8,414 2 View

How to assess the osmotic power of a substance?

Hello, I suspect that a molecule I am using is causing bacteria to experience osmotic shock. What chemical properties should I look for to compare this capability with those of other substances?...

06 August 2024 977 1 View

How to use Density Functional Theory to calculate carrier mobilities of solid system?

Hello, everyone. I have tried to determine carrier motilities of some materials, by Density Functional Theory, using Quantum ESPRESSO. There are a few methods to do it, like a package called...

04 August 2024 8,894 1 View

Short Synthesis of Graphene Oxide from Natural Graphite Flakes?

I am in search of a modified Hummer's method, which can be used to synthesis graphene oxide within 6-8 hours. As I am a student it is not allowed for us to work after 5 in the laboratory. So I am...

01 August 2024 8,368 2 View

How can I separate graphene from amorphous carbon of similar particle sizes?

The starting material is a finely ground powder. Some particles contain more graphene than others.

30 July 2024 3,978 2 View

How can I calculate formation energy using VASP-Ab-initio?

I would like to calculate the formation energy of P2-Na0.67Fe0.5Mn0.5O2 based on DFT, what should I do step by step. Any help would be appreciated. Thanks.

29 July 2024 8,248 2 View

How to explain the different interaction between soluble and insoluble polymer in water?

Hello everyone, I am try to understand the differences interaction between insoluble and soluble polymers in water with metal ions and how theit charge density (of metal ions) affect the interaction.

29 July 2024 6,350 3 View