C3MJ Small Aperture Products
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CPV Small Aperture Point Focus Solar Cell C3MJ Third Generation CPV Technology Product Description Qualification Tests Completed Typical Efficiency 38.5% Recommended operating temperature <110°C Epitaxial Structure Triple junction solar cell on Germanium substrate GaInP (1.88 eV) / GaInAs (1.41 eV) / Ge (0.67 eV) Metallization Silver metallization on front busbar and grid fingers Silver metallization with 500Ǻ gold on back surface Test Conditions Performance Tests LIV 50 W/cm2 under ASTM 173G Temp 50, 75 & 100 W/cm2, Intensity ASTM 173G at 10°C, 25°C, 65°C, and 110°C Weld LIV test before and after Degradation weld 100% of NPmp > 0.98 scribed parts Spectral Response Angle of X25 or SR illumination incidence source Solar Measure reflectance Absorptance Accelerated Life Tests Damp Heat Thermal Cycle High Temp Soak in Nitrogen 85C, 85% RH for 2000 30 hours IEEE 1513 (500 cycles 25 –40°C to +110°C) unbiased soak at 200°C 15 at each and 250°C in Nitrogen T NPmp > 0.9 NPmp > 0.9 NPmp > 0.95 after 25 yrs * Full Qualification Report Is Available Upon Request Mechanical Dimensions © 2010 Spectrolab, Inc. All Rights Reserved (08/18/10) Specifications Subject to Change without Notice. Spectrolab, Inc. 12500 Gladstone Avenue, Sylmar, California 91342 USA ● Phone 818.365.4611 ● FAX: 818.361.5102 ● Website :

Typical Performance Over Temperature Spectral Response Typical Population Efficiency Distribution Percentage of Population © 2010 Spectrolab, Inc. All Rights Reserved (08/18/10) Efficiency Specifications Subject to Change without Notice. Spectrolab, Inc. 12500 Gladstone Avenue, Sylmar, California 91342 USA ● Phone 818.365.4611 ● FAX: 818.361.5102 ● Website : www.spectrolab