Optoelectronic and Photovoltaic Properties of the Air-Stable Organohalide Semiconductor (CH 3 NH 3 ) 3 Bi 2 I 9

Handle URI:
http://hdl.handle.net/10754/617239
Title:
Optoelectronic and Photovoltaic Properties of the Air-Stable Organohalide Semiconductor (CH 3 NH 3 ) 3 Bi 2 I 9
Authors:
Abulikemu, Mutalifu ( 0000-0002-3366-4239 ) ; Ould-Chikh, Samy ( 0000-0002-3486-0944 ) ; Miao, Xiaohe; Alarousu, Erkki; Banavoth, Murali ( 0000-0002-7806-2274 ) ; Ngongang Ndjawa, Guy Olivier ( 0000-0001-7400-9540 ) ; Barbe, Jeremy ( 0000-0002-1204-4727 ) ; El Labban, Abdulrahman ( 0000-0001-9891-0851 ) ; Amassian, Aram ( 0000-0002-5734-1194 ) ; Del Gobbo, Silvano
Abstract:
Lead halide perovskite materials have shown excellent optoelectronic as well as photovoltaic properties. However, the presence of lead and the chemical instability relegate lead halide perovskites to research applications only. Here, we investigate an emerging lead-free and air stable compound (CH3NH3)3Bi2I9 as a non-toxic potential alternative to lead halide perovskites. We have synthesized thin films, powders and millimeter-scale single crystals of (CH3NH3)3Bi2I9 and investigated their structural and optoelectronic properties. We demonstrate that the degree of crystallinity strongly affects the optoelectronic properties of the material, resulting in significantly different band gaps in polycrystalline thin films and single crystals. Surface photovoltage spectroscopy reveals outstanding photocharge generation in the visible (<700 nm), while transient absorption spectroscopy and space charge limited current measurements point to a long exciton lifetime and a high carrier mobility, respectively, similar to lead halide perovskites, pointing to the remarkable potential of this semiconductor. Photovoltaic devices fabricated using this material yield low power conversion efficiency (PCE) to date, but the PCE is expected to rise with improvements in thin film processing and device engineering.
KAUST Department:
KAUST Solar Center (KSC); KAUST Catalysis Center (KCC); KAUST Core Laboratories
Citation:
Optoelectronic and Photovoltaic Properties of the Air-Stable Organohalide Semiconductor (CH 3 NH 3 ) 3 Bi 2 I 9 2016 J. Mater. Chem. A
Publisher:
Royal Society of Chemistry (RSC)
Journal:
J. Mater. Chem. A
Issue Date:
14-Jul-2016
DOI:
10.1039/C6TA04657F
Type:
Article
ISSN:
2050-7488; 2050-7496
Is Supplemented By:
Abulikemu, M., Ould-Chikh, S., Miao, X., Alarousu, E., Murali, B., Ndjawa, G. O. N., … Del Gobbo, S. (2016). CCDC 1483450: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/ccdc.csd.cc1lsn78; DOI:10.5517/ccdc.csd.cc1lsn78; HANDLE:http://hdl.handle.net/10754/624591
Additional Links:
http://pubs.rsc.org/en/Content/ArticleLanding/2016/TA/C6TA04657F
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorAbulikemu, Mutalifuen
dc.contributor.authorOuld-Chikh, Samyen
dc.contributor.authorMiao, Xiaoheen
dc.contributor.authorAlarousu, Erkkien
dc.contributor.authorBanavoth, Muralien
dc.contributor.authorNgongang Ndjawa, Guy Olivieren
dc.contributor.authorBarbe, Jeremyen
dc.contributor.authorEl Labban, Abdulrahmanen
dc.contributor.authorAmassian, Aramen
dc.contributor.authorDel Gobbo, Silvanoen
dc.date.accessioned2016-07-19T10:01:34Z-
dc.date.available2016-07-19T10:01:34Z-
dc.date.issued2016-07-14-
dc.identifier.citationOptoelectronic and Photovoltaic Properties of the Air-Stable Organohalide Semiconductor (CH 3 NH 3 ) 3 Bi 2 I 9 2016 J. Mater. Chem. Aen
dc.identifier.issn2050-7488-
dc.identifier.issn2050-7496-
dc.identifier.doi10.1039/C6TA04657F-
dc.identifier.urihttp://hdl.handle.net/10754/617239-
dc.description.abstractLead halide perovskite materials have shown excellent optoelectronic as well as photovoltaic properties. However, the presence of lead and the chemical instability relegate lead halide perovskites to research applications only. Here, we investigate an emerging lead-free and air stable compound (CH3NH3)3Bi2I9 as a non-toxic potential alternative to lead halide perovskites. We have synthesized thin films, powders and millimeter-scale single crystals of (CH3NH3)3Bi2I9 and investigated their structural and optoelectronic properties. We demonstrate that the degree of crystallinity strongly affects the optoelectronic properties of the material, resulting in significantly different band gaps in polycrystalline thin films and single crystals. Surface photovoltage spectroscopy reveals outstanding photocharge generation in the visible (<700 nm), while transient absorption spectroscopy and space charge limited current measurements point to a long exciton lifetime and a high carrier mobility, respectively, similar to lead halide perovskites, pointing to the remarkable potential of this semiconductor. Photovoltaic devices fabricated using this material yield low power conversion efficiency (PCE) to date, but the PCE is expected to rise with improvements in thin film processing and device engineering.en
dc.language.isoenen
dc.publisherRoyal Society of Chemistry (RSC)en
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2016/TA/C6TA04657Fen
dc.rightsArchived with thanks to J. Mater. Chem. Aen
dc.titleOptoelectronic and Photovoltaic Properties of the Air-Stable Organohalide Semiconductor (CH 3 NH 3 ) 3 Bi 2 I 9en
dc.typeArticleen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.contributor.departmentKAUST Catalysis Center (KCC)en
dc.contributor.departmentKAUST Core Laboratoriesen
dc.identifier.journalJ. Mater. Chem. Aen
dc.eprint.versionPost-printen
dc.contributor.institutionVidyasirimedhi Institute of Science and Technology, School of Molecular Science and Engineering, Moo 1, Payupnai, Wangchan, Rayong 21210, Thailanden
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAbulikemu, Mutalifuen
kaust.authorOuld-Chikh, Samyen
kaust.authorMiao, Xiaoheen
kaust.authorAlarousu, Erkkien
kaust.authorBanavoth, Muralien
kaust.authorNgongang Ndjawa, Guy Olivieren
kaust.authorBarbe, Jeremyen
kaust.authorEl Labban, Abdulrahmanen
kaust.authorAmassian, Aramen
kaust.authorDel Gobbo, Silvanoen
dc.relation.isSupplementedByAbulikemu, M., Ould-Chikh, S., Miao, X., Alarousu, E., Murali, B., Ndjawa, G. O. N., … Del Gobbo, S. (2016). CCDC 1483450: Experimental Crystal Structure Determination [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/ccdc.csd.cc1lsn78en
dc.relation.isSupplementedByDOI:10.5517/ccdc.csd.cc1lsn78en
dc.relation.isSupplementedByHANDLE:http://hdl.handle.net/10754/624591en
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