檢視 $gaussiantraps 的原始碼

Function gaussian-distribution traps. <br />

<big><big>'''Format'''</big></big> 
 $gaussiantraps
  1
  type Nt Et σ degeneracy <math>\tau_n~~~ \tau_p</math>

'''<big><big>Parameter Explanation</big></big>''' <br />
* type : type = 1 is electron trap and type = 2 is hole trap. 

* Nt : total trap concerntraion. The positive and negative value is decided by type. There is no need to put (+ or -) here. For example 1.0e16 <math>(cm^{-3})</math><br />

* Et : the depth of traps central. <math>(eV)</math>. The position of Et is decided by related position to Ec. For example, if trap is 1.1eV below conduction band, -1.1eV is used. Hole trap is using the same definition as electron trap, which is related to Ec also. <br />

* σ : the FWHM of trap. <math>(eV)</math><br />

* degeneracy the degeneracy of traps we usually set as 1. <br />

* <math>\tau_n</math> : nonradiative lifetime of electrons. <math>(Sec.)</math><br /> 

* <math>\tau_p</math> : nonradiative lifetime of holes. <math>(Sec.)</math><br />

Note that usually  <math> \tau = \frac{1}{N_{t}v_{th}\sigma} </math>. Therefore, when Nt is increased, the non-radiative lifetime should decrease as well. Users need to adjust this by themselves. 


'''<big><big>Example</big></big>''' 
 $gaussiantraps
 1
 1 9e16 -3.3 0.12 1 1e-8 1e-8 
 1 9e16 -3.3 0.12 1 1e-8 1e-8 
 2 1e18 -3.3 0.12 1 1e-8 1e-8 
 2 1e18 -3.3 0.12 1 1e-8 1e-8