Publications:
Title: |
Investigation of the Influence of Temperature Inhomogeneity on the Measurement Uncertainty of Solar Cell Temperature Coefficients |
|---|---|
| Author(s): | , and |
| Journal: | Proceedings of the 32nd European PV Solar Energy Conference and Exhibition ( 32nd EU PVSEC) |
| Year: | 2016 |
| Pages: | 2200 - 2203 |
| Event name: | 32nd European Photovoltaic Solar Energy Conference and Exhibition |
| DOI: | DOI 10.4229/EUPVSEC20162016-5BV.4.10 |
| ISBN: | ISBN 3-936338-41-8 |
| Abstract: | In this study we characterize a newly developed solar cell chuck of PTB for suitability of temperature dependent measurements. We investigate the relative temperature distribution on a tempered solar cell and the temperature offset between the solar cell and the PT100 sensor which is used for temperature regulation. We adjusted the setpoint temperature from TSP=15 °C up to 75 °C and measured the relative temperature distribution with an infrared camera. Performing temperature dependent differential spectral responsivity (DSR) measurements, we determined the spectral temperature coefficient of an exemplary silicon solar cell. With these data we can derive the influence of the temperature inhomogeneity on the measurement uncertainty. Non-irradiated we measured the absolute temperature with sixteen calibrated PT100 sensors distributed on the solar cell’s surface. Applying the open circuit method (VOC-method) we investigated the influence of incident irradiation on the temperature behavior of the solar cell chuck and the solar cell. We found out that the highest uncertainty contribution arises through the calibration of the integrated PT100 sensors of the chuck. |