How to calculate the absorption coefficient of a semiconductor numerically?

If I know the band gap if a certain semiconductor, and I would like to calculate the value of the absorption coefficient numerically using the following equation: how to determine the values of...

01 February 2017 3,297 1 View

Can anyone suggest a solar cell Modeling software for beginners?

10 November 2016 2,278 43 View

What is the best method to fabricate Gold counter electrode for QDSSCs?

02 March 2016 2,724 2 View

How to prevent the re-stacking of Graphene Oxide after reduction?

02 March 2016 5,973 5 View

How to differentiate between allowed and forbidden transitions in direct band gap semiconductors?

01 February 2016 356 7 View

How to solve the counter electrode dissolving problem in quantum dot sensitized solar cell?

09 October 2015 3,717 3 View

How do I solve the problem of continuous corrosion of metal sulfides counter electrode in the presence of polysulfide electrolyte?

09 October 2015 340 3 View

Did any one know the full spectrum of Ultra-high-performance lamp?

04 May 2015 8,451 5 View

How to measure Solar cell J-V curve by Potentiostat?

I need to measure the J-V curve for solar cell using Princeton Versastat 4 potentiostat. How can I connect the terminals of the potentiostat?

03 April 2015 5,591 11 View

Why is in Raman is laser of wavelength 785 nm not compatible with graphene?

the most Raman spectrometers use LASER wavelengths of 533 and 633 during characterizing Graphene. When a LASER of wavelength 785 nm is used the D & G peaks in the spectrum are greatly shifted...

03 April 2015 2,470 9 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View