Semiconductor Perovskite Hysteresis Index Calculator
Declared perovskite scan-efficiency hysteresis (reverse−forward)/reverse. Scan direction, rate, preconditioning and time history must be independently matched; signed metric not a universal hysteresis definition or physical ion-migration proof.
Description
Perovskite hysteresis depends on matched scan protocols and an explicit normalization.
Perovskite hysteresis depends on matched scan protocols and an explicit normalization.1
A reverse-efficiency-normalized index differs from other hysteresis conventions and may be signed.
When to use Semiconductor Perovskite Hysteresis Index Calculator
Use this tool to obtain signedReverseNormalizedHysteresisIndex from the supplied records using the stated calculation. Establish the device or material, operating point, units and independently applicable measurement or model calibration.
How to use Semiconductor Perovskite Hysteresis Index Calculator and understand its results
- Establish the device or material, operating point, units and independently applicable measurement or model calibration.
- Enter actualReverseScanEfficiency, matchedForwardScanEfficiency, using the field meanings and rules below, then run the tool.
- Read result.signedReverseNormalizedHysteresisIndex. Use the units and sign conventions below, and review any unknown records separately.
- 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 |
|---|---|---|---|
| actualReverseScanEfficiency | Actual reverse scan efficiency | number | Required |
| matchedForwardScanEfficiency | Matched forward scan efficiency | number | Required |
Require positive reverse-scan efficiency and nonnegative matched forward-scan efficiency. Return reverse-minus-forward divided by reverse. No upper-one efficiency guard or output clamping is imposed, so forward above reverse returns a negative index.
hysteresisIndex=(reverseEfficiency−forwardEfficiency)/reverseEfficiency 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.signedReverseNormalizedHysteresisIndex | Reverse-minus-forward efficiency divided by reverse efficiency. | number |
{
"input": {
"actualReverseScanEfficiency": 0.2,
"matchedForwardScanEfficiency": 0.15
},
"output": {
"result": {
"signedReverseNormalizedHysteresisIndex": 0.25000000000000006
}
}
}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 Perovskite Ion Migration Activation Energy Calculator: Ion-migration activation-energy references depend on perovskite composition, pathway and measurement model. For a complementary comparison, use Semiconductor Organic Photovoltaic Charge Transfer State Energy Calculator: An organic photovoltaic charge-transfer energy depends on composition, morphology and the adopted spectroscopy model.
References
Similar or alternative tools
- Semiconductor Perovskite Ion Migration Activation Energy Calculator
Ion-migration activation-energy references depend on perovskite composition, pathway and measurement model.
- Semiconductor Organic Photovoltaic Charge Transfer State Energy Calculator
An organic photovoltaic charge-transfer energy depends on composition, morphology and the adopted spectroscopy model.