UM
Formamidinium-containing metal-halide: An alternative material for near-IR absorption perovskite solar cells
Koh T.M.1; Fu K.1; Fang Y.1; Chen S.1; Sum T.C.1; Mathews N.1; Mhaisalkar S.G.1; Boix P.P.1; Baikie T.1
2014-07-31
Source PublicationJournal of Physical Chemistry C
ISSN19327455 19327447
Volume118Issue:30Pages:16458-16462
AbstractSolid-state, solution processed solar-cells based on organic-inorganic methyl ammonium lead halide absorbers have achieved efficiencies in excess of 15%, which has superseded liquid dye sensitized cells, as well as various thin film-based photovoltaics. This report introduces a new metal-halide perovskite, based on the formamidinium cation (HC(NH)), that displays a favorable band gap (1.47 eV) and represents a broader absorption compared to previously reported absorbers that contained the methylammonium cation (CHNH). The high open-circuit voltage (V = 0.97 V) and promising fill-factor (FF = 68.7%) yield an efficiency of 4.3%, which make this material an excellent candidate for this new class of perovskite solar cell. This report also investigates the formation of a black trigonal (P3m1) perovskite polymorph and a yellow hexagonal nonperovskite (P63mc) polymorph. Further solar cell development would entail the stabilization of the black trigonal (P3m1) perovskite polymorph over the yellow hexagonal nonperovskite (P63mc) polymorph. © 2013 American Chemical Society.
DOI10.1021/jp411112k
URLView the original
Language英語
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Cited Times [WOS]:359   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Nanyang Technological University
2.Singapore-Berkeley Research Initiative for Sustainable Energy
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GB/T 7714
Koh T.M.,Fu K.,Fang Y.,et al. Formamidinium-containing metal-halide: An alternative material for near-IR absorption perovskite solar cells[J]. Journal of Physical Chemistry C,2014,118(30):16458-16462.
APA Koh T.M..,Fu K..,Fang Y..,Chen S..,Sum T.C..,...&Baikie T..(2014).Formamidinium-containing metal-halide: An alternative material for near-IR absorption perovskite solar cells.Journal of Physical Chemistry C,118(30),16458-16462.
MLA Koh T.M.,et al."Formamidinium-containing metal-halide: An alternative material for near-IR absorption perovskite solar cells".Journal of Physical Chemistry C 118.30(2014):16458-16462.
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