"$ifapplyEgofT" 修訂間的差異

出自 DDCC TCAD TOOL Manual
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(已建立頁面，內容為 " Since the DDCC has the capability of solving the Poisson, drift-diffusion, and thermal solver self-consistently. It will need to consider the possibility of bandga...")
 
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Since the DDCC has the capability of solving the Poisson, drift-diffusion, and thermal solver self-consistently. It will need to consider the possibility of bandgap narrowing with temperature. Therefore, we can apply the temperature dependent coefficients for the material's bandgap. Usually the temperature dependent bandgap can be expressed as
+
Since the DDCC has the capability of solving the Poisson, drift-diffusion, and thermal solver self-consistently. It will need to consider the possibility of bandgap narrowing with temperature. Therefore, we can apply the temperature dependent coefficients for the material's bandgap. Usually the temperature dependent bandgap can be expressed as: <br>
  +
 
<math> Eg(T) = Eg(0) - \frac{\gamma T^{2} }{ T + \beta} </math>
  
<math> Eg(T) = Eg(0) - \frac{\gamma T^{2} }{ T + \beta} </math>
   
  +
Therefore, to enable the temperature dependent Eg in the simulation, we need to add <br>.
   
  ⚫
$ifapplyEgofT
  +
Eg(0) <math> \gamma </math>, <math> \beta </math>
  +
Eg(0) <math> \gamma </math>, <math> \beta </math>
  +
Eg(0) <math> \gamma </math>, <math> \beta </math>
  +
Eg(0) <math> \gamma </math>, <math> \beta </math>
  +
...
  +
...
  +
to layer N
   
⚫
$ifapplyEgofT
  
  +
If some material's coefficient cannot be found, please make <math> \gamma = 0 </math>. So the program will keep the bandgap of this region as constant. <br>
  +
Note that <br>
  +
Eg(0) is the Eg at 0K, not 300K. So if the parameters source is not the same,
  +
<math> Eg(300) = Eg(0) - \frac{\gamma 300^{2} }{ 300 + \beta} </math> may not be the same as the bandgap in the $

於 2020年4月12日 (日) 18:43 的修訂

Since the DDCC has the capability of solving the Poisson, drift-diffusion, and thermal solver self-consistently. It will need to consider the possibility of bandgap narrowing with temperature. Therefore, we can apply the temperature dependent coefficients for the material's bandgap. Usually the temperature dependent bandgap can be expressed as: 

   Eg(T) = Eg(0) - \frac{\gamma T^{2} }{ T + \beta}

Therefore, to enable the temperature dependent Eg in the simulation, we need to add
. 

$ifapplyEgofT
Eg(0)   \gamma ,  \beta 
Eg(0)   \gamma ,  \beta 
Eg(0)   \gamma ,  \beta 
Eg(0)   \gamma ,  \beta 
...
...
to layer N

If some material's coefficient cannot be found, please make \gamma = 0 . So the program will keep the bandgap of this region as constant.
Note that 

Eg(0) is the Eg at 0K, not 300K. So if the parameters source is not the same, 
   Eg(300) = Eg(0) - \frac{\gamma 300^{2} }{ 300 + \beta}  may not be the same as the bandgap in the $
取自 "http://yrwu-wk.ee.ntu.edu.tw/mediawiki/index.php?title=$ifapplyEgofT&oldid=2266"