Probing concentrator solar cell performance at high flux with localized irradiation Conference Paper uri icon

abstract

  • Recent advances in III-V multi-junction solar cells and compact miniaturized concentrators prompt the need for PV performance studies at high flux with particular focus on the sensitivity to flux distribution. We report how our localized irradiation probe (LIP) - a solar fiber-optic mini-dish concentrator [1-3] - was applied to two relevant case studies. The first examines how PV current-voltage (I-V) curves change under localized irradiation, and appraises the uniform metallization grid. The second focuses on a cell with irregular metallization, and maps PV parameters across the cell surface … Our test facility comprises a mini-dish concentrator with a transmissive optical fiber 1.0 mm in diameter channeling concentrated sunlight to an indoor test bench. LIP refers to the fiber touching the cell such that radiation is confined to the fiber tip circle. Measuring I-V curves as the fiber is moved across the cell surface allows the mapping of PV …

publication date

  • January 1, 2007