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Absorption enhancement in ultra-thin film Si slabs using novel photonic crystal textures

Callahan, Dennis M. and Whitesell, Kelsey A. and Atwater, Harry A. (2013) Absorption enhancement in ultra-thin film Si slabs using novel photonic crystal textures. In: IEEE 39th Photovoltaic Specialists Conference. IEEE , Piscataway, NJ, pp. 1842-1844. ISBN 978-1-4799-3299-3. https://resolver.caltech.edu/CaltechAUTHORS:20140918-102923680

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Abstract

We perform rigorous coupled wave analysis (RCWA) and finite-difference time-domain (FDTD) calculations on thin (< 200 nm) slabs of Si with various wavelength scale texturing. Traditional photonic crystal patterning is investigated and compared to a flat Si slab with a double layer anti-reflection coating. These traditional photonic crystal lattices are then modified with superlattice which further improve the absorption. We also investigate the angular spectra of select lattices and show how resonant absorption peaks shift with incident angle. It is concluded that alternate photonic crystal texturing can lead to significantly enhanced absorption over planar slabs with optimized anti-reflection coatings.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/PVSC.2013.6744500 DOIArticle
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6744500PublisherArticle
ORCID:
AuthorORCID
Atwater, Harry A.0000-0001-9435-0201
Additional Information:© 2013 IEEE.
Subject Keywords:photonic crystal, light trapping, nanophotonics, LDOS, silicon
DOI:10.1109/PVSC.2013.6744500
Record Number:CaltechAUTHORS:20140918-102923680
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140918-102923680
Official Citation:Callahan, D.M.; Whitesell, K.A; Atwater, H.A, "Absorption enhancement in ultra-thin film Si slabs using novel photonic crystal textures," Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th , vol., no., pp.1842,1844, 16-21 June 2013 doi: 10.1109/PVSC.2013.6744500 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6744500&isnumber=6744078
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49815
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Sep 2014 22:24
Last Modified:10 Nov 2021 18:48

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