SOLUTIONS FOR PHOTOVOLTAIC MATERIALS ADVANTAGES ABSOLUTE PHOTOMETRIC CALIBRATION (PL/EL) SIMULTANEOUS ACQUISITION OF SPATIAL AND SPECTRAL PROPERTIES FAST ACQUISITION © 2013 Photon etc. Inc. All rights reserved. www.photonetc.com 5795 DE GASPE AVENUE, #222 MONTREAL, QUEBEC, H2S 2X3 CANADA IMA™ Microscopy Hyperspectral Imaging Down to micrometric resolution Lateral carriers transport evaluation Illumination similar to operational conditions for PV Spatial uniformity investigation Quasi-Fermi level splitting measurement Open circuit voltage (V OC ) map External quantum efficiency (EQE) map Defect formation and propagation monitoring LLTF Contrast™ Tunable Laser Source 400-1300 nm Pulsed laser source in the visible Lifetime measurements (QC) Local IV measurement at micron scale Spectrally resolved Light Beam Induced Current (LBIC) Graph images courtesy of A. Delamarre, L. Lombez, J.F. Guillemoles at IRDEP, France. Solar Panels Image courtesy of Jeremy Levine Design. 400 600 800 1000 2500 (nm) Quasi-Fermi level splitting obtained from EL intensity of CIGS microcell 140 0,83 0,82 0,81 0,80 0,79 Absolute PL spectra obtained from 3 different spatial locations on CIGS solar cells absorbers WAVELENGTH (nm) 0,9 Photoluminescence photons/m 2 .J.s) 1,0 1,1 1,2 1,3 10 39 10 38 10 37 B C x (μm) 0 25 50 75 125 y (μm) 150 125 100 25 0,70 0,60 0,72 0,75 0,69 0,73 Δμ eff (eV) Local excitation; global PL detection on III-V semiconductors 120 100 80 60 40 20 20 40 60 80 100 120 180 y (μm) 140 140 160 x (μm) Δμ eff (eV) A 0,68 0,66 0,65 0,63 0,61 100 0 175 50 75