Calculate Electron & Lattice Temperature with Heat Source - Leyla

[Leyla_]

I am wondering how can I obtain the temperatures of electrons and lattice as a function of heat source. Is there any formula to calculate that except two temperature model? I have a code which calculates the two temperature model but in that code, the heat source term is replaced by the friction coefficent due to electron stopping. so I can't calcualte the temperature of electrons as a function of heat source power. Can you please advise me how can I obtain the electron and lattice temperatures.

Regardsm,
Leyla

 

[Vailanor]

The two-temperature model is a commonly used model for calculating the temperatures of electrons and lattice as a function of heat source. The model assumes that the thermal energy exchange between electrons and lattice is negligible, so the electron temperature and lattice temperature can be calculated independently. Generally, it is assumed that the lattice temperature is always equal to the ambient temperature, while the electron temperature is determined by the balance between the heat source power and the electron thermal conductivity. The equation for calculating the electron temperature is as follows: T_e = T_amb + (P_heat / K_e) where T_e is the electron temperature, T_amb is the ambient temperature, P_heat is the heat source power, and K_e is the electron thermal conductivity. In addition to the two-temperature model, there are other models which take into account the thermal energy exchange between electrons and lattice. For example, the three-temperature model considers the effect of phonon-electron scattering in order to calculate the temperatures of electrons and lattice.