Steady-state only gives the final separated amount, while charge competition happens from nanoseconds to milliseconds. The PL-TPV Transient Surface Photovoltage Spectrometer uses fast light pulses and high sampling to capture this process and locate which stage recombination occurs.
A short light pulse excites the sample, and the decay of surface potential over time is recorded. Fitting yields charge lifetime and transfer-rate constants, allowing comparison of kinetic differences among samples.
The PL-SPV/IPCE1000 Steady-State Surface Photovoltage Spectrometer gives separation strength and wavelength dependence, while the PL-TPV gives the timescale. Together they assemble the full picture of "how much separates, how long it lasts."
Transient measurement is sensitive to noise and contact; sample preparation and electrode contact must be standardized, and multiple averaging improves the signal-to-noise ratio.
Free consultation: Still guessing how fast charges die? Perfectlight's PL-TPV Transient Surface Photovoltage Spectrometer gives you time-resolved hard data, making the kinetic bottleneck obvious at a glance.
Tel: 400-1161-365 / 010-62128921 Perfectlight Official Website
Steady-state only gives the final separated amount, but charge competition occurs from nanoseconds to milliseconds, so transient capture locates where recombination happens.
A short pulse excites the sample; the surface-potential decay is recorded and fitted to yield lifetime and transfer-rate constants.
Transient measurement is noise- and contact-sensitive; standardize sample prep and electrode contact, and average multiple scans to improve SNR.
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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