Surface photovoltage spectroscopy (SPV) reflects the charge-separation behavior at the material surface under illumination; transient photovoltage (TPV) reveals carrier lifetime and recombination dynamics. Together they explain "why the reaction is fast/slow," closing the mechanism loop with product data.
| Instrument | Measures | Use |
|---|---|---|
| PL-SPV/IPCE1000 Steady-State Surface Photovoltage Spectrometer | Steady-state SPV/IPCE | Carrier-separation efficiency |
| PL-TPV Transient Surface Photovoltage Spectrometer | Transient decay | Carrier lifetime, recombination rate |
First confirm high material separation efficiency on the PL-SPV/IPCE1000 Steady-State Surface Photovoltage Spectrometer, then use the PEC2000 Photoelectrochemical Test System for actual photocurrent and product verification—only then is the conclusion complete.
Report SPV phase and amplitude, TPV lifetime, and cross-check with IPCE and photocurrent; avoid reporting only products while lacking mechanism evidence.
Free consultation: Lacking carrier evidence in your mechanism paper? Perfectlight's PL-SPV/IPCE1000 and PL-TPV combination helps you substantiate separation efficiency.
Tel: 400-1161-365 / 010-62128921 Perfectlight Official Website
SPV shows surface charge separation under illumination; TPV shows carrier lifetime and recombination—together they explain reaction rate.
The PL-SPV/IPCE1000 gives steady-state separation efficiency; the PL-TPV gives transient lifetime and recombination rate.
Report SPV phase/amplitude and TPV lifetime, cross-checked with IPCE and photocurrent, not products alone.
This article does not constitute a performance commitment; specific technical parameters are subject to the actual product documentation and mutual confirmation.
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