| Autor: |
Horner, G. S., Vasilyev, L. A., Schmidt, J., Hudson, J. E., Arbore, M., Dybiec, M., Good, E. A. |
| Zdroj: |
2011 37th IEEE Photovoltaic Specialists Conference; 1/ 1/2011, p001716-001720, 5p |
| Abstrakt: |
Flash Quantum Efficiency — a technique used to simultaneously measure full spectrum external quantum efficiency (EQE), Reflectance (R), and Transmittance (T), has been introduced in two prior publications [1,2]. The method uses a novel architecture to simultaneously modulate a bank of solid state lightsources and measure, in real time, the cell response to each wavelength. In this work we extend it to include two additional capabilities-automated spatial mapping and multi-junction measurements. Mapping throughput of 2400 sites per hour is demonstrated on single crystal silicon cells with a signal to noise ratio that is significantly higher than conventional QE. New inverted metamorphic cells are also used to develop and demonstrate a multi-junction FlashQE technique with total acquisition time of less than four seconds per triple-junction cell. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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