Solar simulator air mass zero calibration method

A method of AMO solar simulator calibration is demonstrated that does not rely on balloon or similar solar cell reference standards [5]. This work presents the development of a new tool for calibrating a solar simulator and measuring solar cell performance using a real-time diode array spectroradiometer calibrated with an absolute irradiance standard, the ASTM-E-490 solar spectrum, and spectral response curves. An in-house developed software application acquires data, convolves the measured simulator spectrum with the spectral response curves in two wavelength bands, and reports measurement and calculation results allowing solar simulator irradiance adjustment for AMO matching. Various calibration scenarios will be reported, with comparisons between primary and secondary calibration standards, and the spectroradiometric calibration.