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Infiltrated photonic crystals for light-trapping in CuInSe₂ nanocrystal-based solar cells

Dottermusch, Stephan; Quintilla, Aina; Gomard, Guillaume; Roslizar, Aiman; Voggu, Vikas Reddy; Simonsen, B. A.; Park, J. S.; Pernik, D. R.; Korgel, Brian A.; Paetzold, Ulrich W.; Richards, Bryce. S.

Abstract (englisch):
Solution processable nanocrystal solar cells combine the advantages of low-cost printing and wide range of accessible absorber materials, however high trap densities limit performance and layer thickness. In this work we develop a versatile route to realize the infiltration of a photonic crystal, with copper indium diselenide nanocrystal ink. The photonic crystal allows to couple incident light into pseudo-guided modes and thereby enhanced light absorption. For the presented design, we are able to identify individual guided modes, explain the underlying physics, and obtain a perfect match between the measured and simulated absorption peaks. For our relatively low refractive index layers, a 7% maximum integrated absorption enhancement is demonstrated.


Zugehörige Institution(en) am KIT Center for Functional Nanostructures (CFN)
Institut für Mikrostrukturtechnik (IMT)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Jahr 2017
Sprache Englisch
Identifikator DOI: 10.1364/OE.25.00A502
ISSN: 1094-4087
KITopen ID: 1000069275
HGF-Programm 43.23.04; LK 01
Erschienen in Optics express
Band 25
Heft 12
Seiten A502-A514
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