Work function of 0-D and 3-D using density functional theory?

how can we calculate the work function of 0-D (quantum dot or nanocrystal or molecules) and 3-D (bulk) materials using density functional theory?

31 December 2018 1,100 3 View

How to calculate the impurity carrier concentration in a host material by DFT calculations?

How can we calculate the impurity (dopant) carrier (electrons and holes) concentration in the host material at 0K by DFT calculations and at room temperature by using semi-classical theory or some...

01 February 2017 6,603 2 View

How to perform equilibrium molecular dynamic simulation (MD)?

Could anyone tell me that how to do equilibrium molecular dynamic simulation to calculate lattice thermal conductivity by using which code?

31 December 2016 575 0 View

Electronic devices and their band gaps?

Could anyone specify bandgaps with respect to applications or vice versa, please? For example, a semiconductor within some specified lower and upper limit may give highest performance as a solar...

10 November 2016 2,664 3 View

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Efficient DFT code for large quantum dots?

09 October 2016 7,192 11 View

Insulator, topological insulator and band insulator in terms of electronic band structure?

Dear respected researchers, Could you please explain the key differences between insulator, topological insulator and band insulator based on their band structures? Thank you!

08 September 2016 4,624 3 View

Could we calculate transistor properties by transiesta? or by some other code than ATK? I would prefer freely available code.?

Could we calculate transistor properties by transiesta? or by some other code than ATK? I would prefer freely available code. Looking for your valuable comments. Thank you.

07 August 2016 3,026 0 View

Which NEGF code can be used for the study of field effect transistor?

I am interested in freely available code.

07 August 2016 5,022 0 View

Optimization with vasp?

Dear experts, Please find attached structures of doped graphene during and after geometry optimization. I have optimized graphene supercell with substitutional doping in the hexagonal ring of the...

06 July 2016 7,728 8 View

How can we define or analyze the covalent bonding between two atoms on the basis of atomic radii and bond length between them?

Or in other way, what is the role of atomic radii and bond length distance between two atoms in the formation of covalent bonds?

06 July 2016 4,914 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

Is there a deep reason for using the squared modulus of the wave function as the probability density of the existence of the particle?

I think we were all surprised at the first time we got to know quantum mechanics that the squared modulus of the wave function is the probability density of the existence of the particle? The role...

28 February 2021 6,282 9 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

Why do the air flow results vary totally when adding scalar in CFD ?

Dear All, We are using Autodesk cfd to calculate the air flow in a single sided naturally ventilated room, where air flow depends only on buoyancy due to temperature difference between inside and...

25 February 2021 9,602 4 View

How to interpolate from a time-series database ?

Hi, I am having trouble with a problem, in the field of Optimal Control and the generation of optimal time-series. Let's consider a system, whose dynamics are represented by dx/dt =...

24 February 2021 9,105 2 View