A computationally efficient multi-diode model for optimizing the front grid layout of multijunction solar cells under concentration

Christiaan Huybert van de Stadt, P.E. Espinet Gonzalez, Harry A. Atwater, Rebecca Saive* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

12 Downloads (Pure)

Abstract

We have developed a computationally efficient simulation model for the optimization of redirecting electrical front contacts for multijunction solar cells under concentration, and we present its validation by comparison with experimental literature results. The model allows for fast determination of the maximum achievable efficiency under a wide range of operating conditions and design parameters such as the contact finger redirecting capability, period and width of the fingers, the light concentration, and the metal and emitter sheet resistivity. At the example of a state-of-the-art four-junction concentrator solar cell, we apply our model to determine ideal operating conditions for front contacts with different light redirection capabilities. We find a 7% relative efficiency increase when enhancing the redirecting capabilities from 0% to 100%.
Original languageEnglish
Article number1907530
Number of pages10
JournalJournal of Renewable Engergy
Volume2020
DOIs
Publication statusPublished - 16 Jul 2020

Fingerprint

Dive into the research topics of 'A computationally efficient multi-diode model for optimizing the front grid layout of multijunction solar cells under concentration'. Together they form a unique fingerprint.

Cite this