What is the relation between doping concentration and bandgap energy in semiconductors ?

More Akhil Raj Kumar Kalapala's questions See All

What meant by 8-band k.p model for QW and QDs ?

Can anyone explain me what is meant by 8-band k.p model for Quantum waves and Quantum Dots ?

08 September 2016 5,839 0 View

What is the carrier lifetime of Al(0.5)Ga(0.5)As at 300K ?

Kindly give the values of carrier life time (Tau) of Al0.5Ga0.5As at 300K with doping concentration of 1. P type = 2.00E+182. N type = 2.00E+18

03 April 2016 3,339 0 View

What is Diffusion constant (D) and Diffusion Length (L) with respect to different layers of solar cell ?

What is the Diffusion constant (D) and Diffusion length (L) of 1. Al2O3 2. Al0.5Ga0.5As 3. GaAs 4. InAs

03 April 2016 9,544 4 View

What are complex transmission and reflection coefficients and How can we determine them between any two layers ?

How can we determine Fresnel complex transmission and reflection coefficients between any two layers. For example the transmission and reflection coefficients between AlGaAs and GaAs layers of...

01 February 2016 2,181 2 View

What are the different layers and their thickness in Quantum Dots embedded Solar cells ?

Please explain me about the different layers of Quantum Dot Solar cells. And thickness of each layer (nanometers).

11 December 2015 8,779 1 View

What is meant by single junction and double junction solar cells?

How are single junctions and double junctions are implemented in solar cells ?

11 December 2015 4,903 7 View

¿Are oxygen vacancies in semiconductors capable to change the band gap?

Dear all! Oxygen vacancies do raise negatively the Fermi level by increasing the negative charge in the semiconductor crystal structure. In the case of n-type semiconductors, I wonder if this...

30 July 2024 8,339 2 View

How to build my own lab made four point probe set up?

Hello, I'm trying to measure the conductivity of semiconductor films but since I don't have a commercial four point probe set up I would like to build one on my own in my lab. I have generators,...

30 July 2024 906 2 View

Reason for discontinuities in my Band structure?

Hey All! I am wondering what might be wrong with my band structure. I did the calculations using VASP and plotted the results using Origin. Although I have tried changing various input...

25 July 2024 2,920 11 View

How can I calculate spin texture using Quantum Espresso for non-colinear case ?

I want to calculate the spin texture for the electronic band structure obtained from SOC calculation. Is there any way for calculation of spin texture using quantum espresso??

19 July 2024 8,571 1 View

Refractive index in the W-band (75-110 GHz) of some material (Teflon - PTFE) ?

08 July 2024 9,140 1 View

What is the best software for simulation of mode locked diode laser?

Hi Dear All I would like to simulate a mode locked semiconductor laser. Does anyone know what is the best software to do it?

06 July 2024 1,648 4 View

How to confirm if quantum confinement effect was occurred?

I'm making quantum well with 2 different bandgap materials, but I'm not sure quantum confinement effect was occurred because the well width is ~ 60 nm. How can I make sure that effect? Is there...

02 July 2024 8,426 1 View

How can i calculate the band alignmet of Sc2CO2/BlueP heterostructure from DFT?

I know the work function and band gap of each monolayer and heterostructure. I calculated mulliken electronegativity(X) of Sc2CO2 and Bluep. From that i found Ev = X- 4.5+Eg Ec = Ev-Eg, where Eg...

28 June 2024 9,360 0 View

What will be the better approach to calculation in Quantum Espresso?

I have seen during DFT calculation some authors comment that LDA/GGA functional overestimates/underestimates the band gap/lattice constant of some materials. Before going to the main calculation,...

25 June 2024 3,412 9 View

How transmittance is dependent on the band gap and atomic structure?

UV-Visible NIR analysis

20 June 2024 9,056 3 View

Jan-Martin Wagner

Probably you got something wrong here: Not-too-strong doping does not change the band gap. Perhaps you mean the position of the donor level inside the band gap; this just depends on the species one uses for doping, the relevant values can be found in the literature. What dopant species do you have in mind?

Nadim Davletkildeev

Hi,

You can see this in our work

Article Effective electron mass in heavily doped GaAs in the orderin...