Abstract
A characterization study of ultrasmall ultraefficient multijunction concentrator solar cells is presented, with emphasis on performance sensitivity to light intensity and distribution. Information of this type is essential in the design and optimization of the latest generations of high-flux photovoltaic systems. Cell miniaturization allows increasing the concentration at which efficiency peaks, facilitates passive heat rejection, and permits the use of all-glass optics. However, few device measurements have been published on ultrasmall cells. Extensive measurements, up to ∼5000 suns, on the 1.0 mm2 active region within the busbars are reported and analyzed.
| Original language | English |
|---|---|
| Article number | 064101 |
| Journal | Applied Physics Letters |
| Volume | 91 |
| Issue number | 6 |
| DOIs | |
| State | Published - 2007 |
| Externally published | Yes |
Bibliographical note
Funding Information:The authors thank Vladimir Melnichak for technical assistance, Gary Conley and Steve Horne of SolFocus, Inc. for providing the solar cells, and Andreas Bett and Gerald Siefer of the Fraunhofer Institute for Solar Energy Systems for cell testing with a flash solar simulator. One of the authors (E.A.K.) thanks the Israel Ministry of Absorption and the Deichmann Foundation for financial support.
Funding
The authors thank Vladimir Melnichak for technical assistance, Gary Conley and Steve Horne of SolFocus, Inc. for providing the solar cells, and Andreas Bett and Gerald Siefer of the Fraunhofer Institute for Solar Energy Systems for cell testing with a flash solar simulator. One of the authors (E.A.K.) thanks the Israel Ministry of Absorption and the Deichmann Foundation for financial support.
| Funders | Funder number |
|---|---|
| Deichmann Foundation | |
| Israel Ministry of Absorption |
