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Numerical study on the angular light trapping of the energy yield of organic solar cells with an optical cavity

Lehr, Jonathan; Mertens, Adrian; Liu, Quan; Martorell, Jordi; Paetzold, Ulrich W. ORCID iD icon; Lemmer, Uli


A limiting factor in organic solar cells (OSCs) is the incomplete absorption in the thin absorber layer. One concept to enhance absorption is to apply an optical cavity design. In this study, the performance of an OSC with cavity is evaluated. By means of a comprehensive energy yield (EY) model, the improvement is demonstrated by applying realistic sky irradiance, covering a wide range of incidence angles. The relative enhancement in EY for different locations is found to be 11-14% compared to the reference device with an indium tin oxide front electrode. The study highlights the improved angular light absorption as well as the angular robustness of an OSC with cavity.

Verlagsausgabe §
DOI: 10.5445/IR/1000127163
Veröffentlicht am 04.12.2020
DOI: 10.1364/OE.404969
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsdatum 07.12.2020
Sprache Englisch
Identifikator ISSN: 1094-4087
KITopen-ID: 1000127163
HGF-Programm 43.23.04 (POF III, LK 01) Nanophotonics for Energy Conversion
Erschienen in Optics express
Verlag Optica Publishing Group (OSA)
Band 28
Heft 25
Seiten 37986-37995
Vorab online veröffentlicht am 02.12.2020
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