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Questions related from Waranatha L Abeygunasekara
I need to find a company/research lab that will fabricate and ship organic solar cells to a given set of specifications, (the size, active layer blend, thickness of the layers, the end contacts...
04 April 2019 4,758 3 View
I'm looking at characterizing the light intensity dependent performance of the solar cells. As a part of this work need to know if the effect of intensity dependent refractive index/ dielectric...
09 September 2017 10,081 5 View
I have noticed that solution to my comsol model can depend on, mesh, initial guess and also on which solver is being used. I don't know if this can be generalized, but I have noticed this in...
08 August 2015 3,039 3 View
What is given by the term 'surface recombination velocity" in terms of a contact? I'm interested in knowing the definition, and also how hole and electron surface recombination velocities vary...
06 June 2015 1,415 0 View
this is regarding simulating solar cells using comsol semiconducting module. I have a slab of semiconductor sandwiched between two schotkky contacts. I define the generation profile as an...
04 April 2015 5,399 8 View
I'm running COMSOL simulations in a 64GB RAM workstation. So far I have been using the default settings. However recently I have noticed that when I have a much finer mesh, computation time is...
04 April 2015 7,588 10 View
I have J-V characteristics (both dark and light) for some solar cells. These devices are fabricated under different conditions and I would like to compare the mobility at each instance. Is it...
04 April 2015 3,397 4 View
.This is regarding the numerical solving of the drift diffusion equations. In an online lecture (Dragica Vasileska (2006), "Drift-Diffusion Model, Part A: Introduction,"...
04 April 2015 315 3 View
I'm using comsol semiconductor module to model the charge transport in a chunk of semiconductor I vary the thickness of the semiconductor and solve the model as a parametric sweep. When I solve...
03 March 2015 660 5 View
This is regarding P3HT:PCBM bulk heterojunction organic solar cells. I have noticed that open circuit voltage is a little less for the annealed devices when compared to un-annealed devices. (of...
03 March 2015 4,280 8 View
I'm using comsol semiconductor module to solve the drift diffusion equations for solar cells. I have noticed that converged solution is different when I'm using comsol multiphysics environment and...
02 February 2015 9,129 2 View
When using drift diffusion model to investigate the charge extraction from a slab of semiconductor, if you do not include a recombination term into your calculations, does this set the charge...
02 February 2015 3,977 6 View
In most cases you can either use auxiliary or parametric sweep to sweep the study over a certain parameter. I would like to know how these two differ and when one is more suitable than the other,...
01 January 2015 1,427 6 View
I have noticed that my model converge to different solutions when I'm running it directly in comsol and saving it as .m file and running it through matlab. Have anybody else had this problem? Any...
01 January 2015 9,678 9 View
What is the typical charge carrier lifetime(s) in organic semiconductors? I'm interested in material used in organic solar cells. How do these values compare with the values for inorganic...
01 January 2015 5,563 7 View
I need to solve the same comsol model several times with different interpolation functions. I'm trying to automate the process using matlab livelink. I have the needed interpolation data in a text...
12 December 2014 4,010 8 View
I'm using a comsol model with two studies. In the first, I'm doing a parametric sweep and the input to the second study depend on the parametric sweep of the first study. I need to basically sum...
12 December 2014 9,311 5 View
which of the following actions are likely to cause the excessive heating of the solar panels when they are in operation ? one such reason can be the absorption of the wavelengths below the...
12 December 2014 8,201 8 View
Is there a better method specific for implicit equations? I'm working on extracting lumped parameter equivalent values of a solar cell for single diode model, using experimental JV data. The...
11 November 2014 608 8 View
When running comsol on a workstation (64GB ram) are there any settings that need to be configured manually? I have installed the comsol going through installation setup as you would install any...
11 November 2014 7,869 6 View
I'm working on modelling organic solar cells and need to find the complex refractive index data of common active layer polymers and charge extraction layer material.
10 October 2014 9,651 19 View
