Document Detail

Dual gratings for enhanced light trapping in thin-film solar cells by a layer-transfer technique.
MedLine Citation:
PMID:  24104431     Owner:  NLM     Status:  Publisher    
Thin film solar cells benefit significantly from the enhanced light trapping offered by photonic nanostructures. The thin film is typically patterned on one side only due to technological constraints. The ability to independently pattern both sides of the thin film increases the degrees of freedom available to the designer, as different functions can be combined, such as the reduction of surface reflection and the excitation of quasiguided modes for enhanced light absorption. Here, we demonstrate a technique based on simple layer transfer that allows us to independently pattern both sides of the thin film leading to enhanced light trapping. We used a 400 nm thin film of amorphous hydrogenated silicon and two simple 2D gratings for this proof-of-principle demonstration. Since the technique imposes no restrictions on the design parameters, any type of structure can be made.
Christian S Schuster; Piotr Kowalczewski; Emiliano R Martins; Maddalena Patrini; Mark G Scullion; Marco Liscidini; Liam Lewis; Christopher Reardon; Lucio C Andreani; Thomas F Krauss
Publication Detail:
Journal Detail:
Title:  Optics express     Volume:  21     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2013 May 
Date Detail:
Created Date:  2013-10-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  -    
Other Details:
Languages:  ENG     Pagination:  A433-A439     Citation Subset:  -    
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