Doping in FDTD solution for OLED simulation


#1

Hi ! Have a nice day!
in FDTD Solution program, it allows to simulation 1 material in 1 layer.
image
But in OLED simulation, in emitting layer (EML), it is need 2 materials: host and dopant with different concentration (like image), for example CC2TA is dopant an DPEPO is host
image
so how can I can simulation 2 material in a layer? and how can I change the con concentration of dopant material in FDTD Solution.
Thank you too much


#2

Forgive me for asking for a clarification: do you want two materials in the same layer?

If that is the case, and if the dopant material has a specific structure that you can define and spread around the host material, you can change the priority order of each material so that the dopant has a higher mesh priority order than the host. Here is a tutorial of mesh order: https://kb.lumerical.com/en/materials_mesh_order_optical.html

To find/change mesh order, right click the structure, navigate to the material tab, and check ‘override mesh order from material database’. Then place the mesh order. I suggest you go through the video tutorial in the link above.


#4

I also found the answer.

THank you for attention