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 9,499 4 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 3,300 0 View

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

01 February 2016 2,140 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 8,738 1 View

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

Dear friends, I need a formula that relates doping concentration of GaAs with its Bandgap. What is the band gap energy of 2E18 N type doped GaAs ?

11 December 2015 2,248 2 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 4,859 7 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

How Relativistic effects is one reason for lanthanide contraction?

The Lanthanide contraction which is the decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, is due to poor shielding of the 4f...

01 March 2021 2,272 4 View

Could anyone tell me what is the range of submillimeter wave?

There is confusion regarding the submillimeter-wave range. Many papers specify its range from 300GHz but some also consider its range from 100GHz. If I design an antenna on 122ghz what would I...

01 March 2021 516 7 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

Complex wave form in ANSYS?

Is there a way to input wave speed in a complex form on ANSYS? The wave speed I need to assign a material is 325(1+0.11i) however I have been unable to do this thus far. Failing that, is there...

27 February 2021 5,969 1 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

Could you please suggest to me research in which a relation between the shear wave velocity and the degree of saturation for stone was discussed?

Hi all, I am looking for a graph or a relation that relates the degree of saturation and the shear wave velocity for the marlstone. Looking forward to your suggestions Best Regards

24 February 2021 9,690 1 View

Are there methods for automatically mapping floodplains, fans and terraces?

I want to map these river geoforms with as little subjectivity as possible. I have a high resolution DEM generated by drone data.

22 February 2021 7,800 3 View

Do I need to introduce HFD to ob/ob mice to obtain a T2DM model?

I am planning to work on T2 diabetic animals and check the efficacy of probiotics. My initial plan is to fed B6 animals with HFD for a while. But now, I have the chance to work on ob/ob mice. My...

18 February 2021 6,896 3 View