Temperature-dependent spectral mismatch corrections

Journal Article · Sun Nov 01 00:00:00 EDT 2015 · IEEE Journal of Photovoltaics

DOI:https://doi.org/10.1109/JPHOTOV.2015.2459914· OSTI ID:1235229

Osterwald, Carl R. ^[1]; Campanelli, Mark ^[1]; Moriarty, Tom ^[1]; Emery, Keith A. ^[1]; Williams, Rafell ^[1]

---

1. National Renewable Energy Lab. (NREL), Golden, CO (United States)

This study develops the mathematical foundation for a translation of solar cell short-circuit current from one thermal and spectral irradiance operating condition to another without the use of ill-defined and error-prone temperature coefficients typically employed in solar cell metrology. Using the partial derivative of quantum efficiency with respect to temperature, the conventional isothermal expression for spectral mismatch corrections is modified to account for changes of current due to temperature; this modification completely eliminates the need for short-circuit-current temperature coefficients. An example calculation is provided to demonstrate use of the new translation.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
• Grant/Contract Number: AC36-08GO28308
• OSTI ID: 1235229
• Report Number(s): NREL/JA-5J00-64369
• Journal Information: IEEE Journal of Photovoltaics, Vol. 5, Issue 6; ISSN 2156-3381
• Publisher: IEEE
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
36 MATERIALS SCIENCE
photovoltaic cells
photovoltaic modules
solar cells
characterizations
metrology
measurement
short circuit current (ISC)
temperature coefficients
spectral irradiance