Document Detail


Bismuth-catalyzed and doped silicon nanowires for one-pump-down fabrication of radial junction solar cells.
MedLine Citation:
PMID:  22822909     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Silicon nanowires (SiNWs) are becoming a popular choice to develop a new generation of radial junction solar cells. We here explore a bismuth (Bi)-catalyzed growth and doping of SiNWs, via vapor-liquid-solid (VLS) mode, to fabricate amorphous Si radial n-i-p junction solar cells in a one-pump-down and low-temperature process in a single chamber plasma deposition system. We provide the first evidence that catalyst doping in the SiNW cores, caused by incorporating Bi catalyst atoms as n-type dopant, can be utilized to fabricate radial junction solar cells, with a record open circuit voltage of Voc=0.76 V and an enhanced light trapping effect that boosts the short circuit current to Jsc=11.23 mA/cm2. More importantly, this Bi-catalyzed SiNW growth and doping strategy exempts the use of extremely toxic phosphine gas, leading to significant procedure simplification and cost reduction for building radial junction thin film solar cells.
Authors:
Linwei Yu; Franck Fortuna; Benedict O'Donnell; Taewoo Jeon; Martin Foldyna; Gennaro Picardi; Pere Roca I Cabarrocas
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-23
Journal Detail:
Title:  Nano letters     Volume:  -     ISSN:  1530-6992     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088070     Medline TA:  Nano Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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