Semiconductor Srh Recombination Lifetime Calculator
Actual steady excess-carrier/SRH-rate effective lifetime with compatible density and density-per-second; not microscopic trap capture lifetimes or generic total recombination. Actual independently matched quantities/units required; not infer causal effect, clinical guidance or safe design.
Description
A conditional SRH lifetime relates excess carrier density to an independently separated SRH recombination rate.
A conditional SRH lifetime relates excess carrier density to an independently separated SRH recombination rate.1
It is different from a total lifetime that includes other pathways.
When to use Semiconductor Srh Recombination Lifetime Calculator
Use this tool to calculate conditional SRH recombination lifetime from the independently matched numerator and denominator. Establish the device or material, operating point, units and independently applicable measurement or model calibration.
How to use Semiconductor Srh Recombination Lifetime Calculator and understand its results
- Establish the device or material, operating point, units and independently applicable measurement or model calibration.
- Enter actualExcessCarrierDensity, independentlySeparatedSrhRecombinationRate, using the field meanings and rules below, then run the tool.
- Read result.observedRatio as conditional SRH recombination lifetime in time on the matched density/rate unit basis. Check the observation scope and assumptions before using the result.
- Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualExcessCarrierDensity | Actual excess carrier density | number | Required |
| independentlySeparatedSrhRecombinationRate | Independently separated srh recombination rate | number | Required |
Require a finite nonnegative actual excess carrier density and a strictly positive independently separated srh recombination rate. Divide the first by the second to obtain conditional SRH recombination lifetime, expressed as time on the matched density/rate unit basis. Use compatible observations on the declared basis; no unit conversion or parameter selection is performed. The numerical ratio is not clamped to one.
conditional_SRH_recombination_lifetime=excessCarrierDensity/separatedSrhRecombinationRate Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Qualified observed calculation or explicit reference | object |
| result.observedRatio | Conditional SRH recombination lifetime, expressed as time on the matched density/rate unit basis. | number |
{
"input": {
"actualExcessCarrierDensity": 2,
"independentlySeparatedSrhRecombinationRate": 4
},
"output": {
"result": {
"observedRatio": 0.5
}
}
}Limitations and assumptions
Device structure, material state, operating conditions and calibration determine applicability. The result does not infer missing physical parameters, verify a transport mechanism or validate a fabricated device model.
Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Extremely large composite outputs are rejected.
Alternative or Complementary methods
For a related step, use Semiconductor Surface Recombination Velocity Calculator: Surface recombination velocity relates a separated surface flux to matched excess carrier volume density. For a complementary comparison, use Semiconductor Nonradiative Recombination Rate Calculator: Nonradiative recombination can be reconciled as total rate minus separated radiative rate.
References
Similar or alternative tools
- Semiconductor Surface Recombination Velocity Calculator
Surface recombination velocity relates a separated surface flux to matched excess carrier volume density.
- Semiconductor Nonradiative Recombination Rate Calculator
Nonradiative recombination can be reconciled as total rate minus separated radiative rate.