CPV Dense Array Solar Cells C3MJ Third Generation CPV Technology Qualification Tests Completed Test Product Description Typical Aperture Area 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 Cell with welded interconnect Cell with coplanar back contact © 2010 Spectrolab, Inc. All Rights Reserved (05/14/10) Specifications Subject to Change without Notice. Spectrolab, Inc. 12500 Gladstone Avenue, Sylmar, California 91342 USA ● Phone 818.365.4611 ● FAX: 818.361.5102 ● Website :

A BOEING COMPANY Typical Current-Voltage Characteristics 8 7 Response Versus Angle of Incidence 100% 90% 80% 70% * 60% Population Efficiency Distribution aI Area Efficiency) 35% O iO s $ Total Cell Area Maximum Power Efficiency [%] ©2010 Spectrolab, Inc. All Rights Reserved (05/14/1 Cx Specifications Subject to Change without Notice. ISO ENVIRONMENTAL MANAGEMENT SYSTEM CERTIFIED BY DNV = IS0 14001 = Spectrolab, Inc. 12500 Gladstone Avenue, Sylmar, California 91342 USA • Phone 818.365.4611 • FAX: 818.361.5102 • Website: www.spectrolab.com