WCA-2300-C3MJ

ISO9001:2000 Registered ● AS9100 Registered WCA-2300-C3MJ Concentrator Solar Cell Product Description Device structure C3MJ Aperture area 5.1 mm2 Minimum average efficiency >38.5% Typical efficiency > 39% Recommended operating temperature <110°C Maximum process temperature <350°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 w/ 2KǺ gold (diffused) on front contact pads Silver metallization with 500Ǻ gold (diffused) on back surface Testing Wafers can be supplied tested on a sample basis or fully tested with measured current binned at a 2.68V load. Packaging Format Parts are in wafer pucks with spider mounts. Mechanical Dimensions Qualification Tests Test Test Conditions Qty 100% 20 Requirement Avg ηmp>38.5%; Min ηmp > 36.2% Characterization External Quantum Efficiency (%) 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 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 Spectral Response 100 90 80 70 60 50 40 30 20 10 0 300 600 900 1200 Wavelength (nm ) 1500 1800 100% of NPmp > 0.98 scribed parts Characterization 10 10 Characterization Characterization 85C, 85% RH for 2000 30 hours IEEE 1513 (500 cycles 25 –40°C to ...