"$gaussiantraps" 修訂間的差異
出自 DDCC TCAD TOOL Manual
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<big><big>'''Format'''</big></big> |
<big><big>'''Format'''</big></big> |
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$gaussiantraps |
$gaussiantraps |
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| − | 1 |
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| + | Gaussiantrap_num |
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type Nt Et σ degeneracy <math>\tau_n~~~ \tau_p</math> |
type Nt Et σ degeneracy <math>\tau_n~~~ \tau_p</math> |
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* type : type = 1 is electron trap and type = 2 is hole trap. Type 201 is the hole trap relatives to Ev. The program will will convert 201 to 2 by adding Eg to the set Et. type 11 is the filled able electron traps and type 21 are the filled able hole traps. type 211 is Et relative to Ev. |
* type : type = 1 is electron trap and type = 2 is hole trap. Type 201 is the hole trap relatives to Ev. The program will will convert 201 to 2 by adding Eg to the set Et. type 11 is the filled able electron traps and type 21 are the filled able hole traps. type 211 is Et relative to Ev. |
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| + | * Gaussiantrap_num: 1 or 2. How many Gaussian traps levels. Up limit is 2 right now. Gaussiantrap_num should be either 1 or 2 |
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* 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 /> |
* 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 /> |
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於 2021年2月27日 (六) 15:10 的修訂
Function gaussian-distribution traps.
Note that currently Gaussian-distribution traps only consider how carrier traps. The recombination with opposite carriers are not well considered. So it is only suitable for condition where the lifetime is very long.
Format
$gaussiantraps Gaussiantrap_num type Nt Et σ degeneracy
Parameter Explanation
- type : type = 1 is electron trap and type = 2 is hole trap. Type 201 is the hole trap relatives to Ev. The program will will convert 201 to 2 by adding Eg to the set Et. type 11 is the filled able electron traps and type 21 are the filled able hole traps. type 211 is Et relative to Ev.
- Gaussiantrap_num: 1 or 2. How many Gaussian traps levels. Up limit is 2 right now. Gaussiantrap_num should be either 1 or 2
- 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
- Et : the depth of traps central.
. 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.
- σ : the FWHM of trap.
- degeneracy the degeneracy of traps we usually set as 1.
-
: nonradiative lifetime of electrons. 
-
: nonradiative lifetime of holes.
Note that usually 
. Therefore, when Nt is increased, the non-radiative lifetime should decrease as well. Users need to adjust this by themselves.
Example
$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-8 201 1e18 0.1 0.12 1 1e-8 1e-8
Note If Eg=3.4eV, 201 1e18 0.1 0.12 1 1e-8 1e-8 , 0.1-3.4 = -3.3eV which is equal to 2 1e18 -3.3 0.12 1 1e-8 1e-8
Related commands: $traps (2D) , $multitraps
