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- C3MJ+ 39.2% Point Focus Solar Cells
C3MJ+ 39.2% Point Focus Solar Cells
C3MJ+ 39.2% Point Focus Solar Cells
The document provides technical specifications for Spectrolab's C3MJ+ CPV Point Focus Solar Cells, which are part of the improved third-generation CPV technology. These solar cells are designed for high efficiency and are fully qualified and field-proven.
Specifications
- Typical Efficiency: 39.2%
- Recommended Operating Temperature: Less than 110°C
- Epitaxial Structure: Triple junction solar cell on Germanium substrate with layers of GaInP (1.88 eV), GaInAs (1.41 eV), and Ge (0.67 eV)
- Metallization: Silver on front busbar and grid fingers with optional gold flash finish; silver with 500Ǻ gold on the back surface
Packaging and Configuration
- Packaging Format: Available as processed wafer or bare cell in waffle tray
- Configuration Options: Silver or gold front contact finish, both 100% tested
Performance and Testing
- Typical Performance Over Temperature: Efficiency at maximum power is 39.2% under ASTM G173-03 spectrum with 50 W/cm2 irradiance
- Qualification Tests: Include performance tests, weld degradation, spectral response characterization, solar absorptance, and accelerated life tests such as damp heat, thermal cycle, and high-temperature soak in nitrogen
- Test Conditions: Various conditions including temperature and intensity variations, with specific requirements for each test
Key Performance Metrics
- Voltage (Voc): 3.21 V
- Current Density (Jsc): 7.19 A/cm2
- Voltage at Maximum Power (Vmp): 2.87 V
- Current Density at Maximum Power (Jmp): 6.83 A/cm2
Additional Information
Full qualification reports are available upon request, and specifications are subject to change without notice.
Catalog excerpts
CPV Point Focus Solar Cells C3MJ+ Improved Third Generation CPV Technology SEnhanced efficiency of our C3MJ technology SFully qualified and field-proven Product Description Typical Efficiency 39.2% 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 (optional gold flash finish) •Silver metallization with 500A gold on back surface CPV Cell Ordering Guide Mechanical Dimensions -Wafer Column Wafer Row . T= 190 pm in all cases F = 25 pm in all cases C = 38.2 pm in all cases ENVIRONMENTAL MANAGEMENT SISTEM CERTIFIED BV DNV = ISO 14001 = Spectrolab, Inc. 12500 Gladstone Avenue, Sylmar, California 91342 USA • Phone 818.365.4611 • FAX: 818.361.5102 • Website : www.spectrolab.com © Spectrolab, Inc. All Rights Reserved Specifications Subject to Change without Notice.
Open the catalog to page 1
ypical Current-Voltage Characteristics Spectral Response Current Density (A/cm2) Voltage Qualification Tests Completed Typical Performance Over Temperature Test * Full Qualification Report Is Available Upon Request ENVIRONMENTAL MANAGEMENT SYSTEM CERTIFIED BY DNV = ISO 14001 = Spectrolab, Inc. 12500 Gladstone Avenue, Sylmar, California 91342 USA • Phone 818.365.4611 • FAX: 818.361.5102 • Website : www.spectrolab.com © Spectrolab, Inc. All Rights Reserved Specifications Subject to Change without Notice. Rev. 10/27/11
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