Document Detail

Mixed-Organic-Cation Perovskite Photovoltaics for Enhanced Solar-Light Harvesting.
MedLine Citation:
PMID:  24554633     Owner:  NLM     Status:  Publisher    
Hybrid organic-inorganic lead halide perovskite APbX3 pigments, such as methylammonium lead iodide, have recently emerged as excellent light harvesters in solid-state mesoscopic solar cells. An important target for the further improvement of the performance of perovskite-based photovoltaics is to extend their optical-absorption onset further into the red to enhance solar-light harvesting. Herein, we show that this goal can be reached by using a mixture of formamidinium (HN=CHNH3 (+) , FA) and methylammonium (CH3 NH3 (+) , MA) cations in the A position of the APbI3 perovskite structure. This combination leads to an enhanced short-circuit current and thus superior devices to those based on only CH3 NH3 (+) . This concept has not been applied previously in perovskite-based solar cells. It shows great potential as a versatile tool to tune the structural, electrical, and optoelectronic properties of the light-harvesting materials.
Norman Pellet; Peng Gao; Giuliano Gregori; Tae-Youl Yang; Mohammad K Nazeeruddin; Joachim Maier; Michael Grätzel
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-2-19
Journal Detail:
Title:  Angewandte Chemie (International ed. in English)     Volume:  -     ISSN:  1521-3773     ISO Abbreviation:  Angew. Chem. Int. Ed. Engl.     Publication Date:  2014 Feb 
Date Detail:
Created Date:  2014-2-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370543     Medline TA:  Angew Chem Int Ed Engl     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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