Macroscopic SPV gives the average charge behavior of the whole sample, masking local differences from grains, grain boundaries, and defects—yet these local features are often the true source of activity or deactivation.
Combining scanning or imaging techniques can visualize the surface potential distribution, locating high-activity regions and recombination hot spots, and guiding precise optimization of morphology and interface engineering.
Surface potential distribution must be cross-checked with structural characterizations such as XPS and SEM to confirm whether potential anomalies come from doping, defects, or phase boundaries—avoiding isolated interpretation.
First use the PL-SPV/IPCE1000 Steady-State Surface Photovoltage Spectrometer for overall screening; when anomalies appear, go deeper with spatially resolved methods—clear hierarchy and saved instrument time.
Free consultation: Overall signal looks normal but activity is poor? Perfectlight advises first screening overall with the PL-SPV/IPCE1000 Steady-State Surface Photovoltage Spectrometer, then using spatial resolution to find local anomalies.
Tel: 400-1161-365 / 010-62128921 Perfectlight Official Website
It averages the whole sample and masks local differences from grains, boundaries, and defects that often drive activity or deactivation.
Combine scanning or imaging to visualize surface potential distribution, locating active regions and recombination hot spots.
Screen overall with the PL-SPV/IPCE1000 first, then apply spatially resolved methods only where anomalies appear, saving instrument time.
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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