Perovskite oxide SrTiO3 as an efficient electron transporter for hybrid perovskite solar cells

Handle URI:
http://hdl.handle.net/10754/563917
Title:
Perovskite oxide SrTiO3 as an efficient electron transporter for hybrid perovskite solar cells
Authors:
Bera, Ashok ( 0000-0002-5643-5973 ) ; Wu, Kewei; Sheikh, Arif D. ( 0000-0003-3823-0947 ) ; Alarousu, Erkki; Mohammed, Omar F. ( 0000-0001-8500-1130 ) ; Wu, Tao ( 0000-0003-0845-4827 )
Abstract:
In this work, we explored perovskite oxide SrTiO3 (STO) for the first time as the electron-transporting layer in organolead trihalide perovskite solar cells. The steady-state photoluminescence (PL) quenching and transient absorption experiments revealed efficient photoelectron transfer from CH3NH3PbI3-xClx to STO. Perovskite solar cells with meso-STO exhibit an open circuit voltage of 1.01 V, which is 25% higher than the value of 0.81 V achieved in the control device with the conventional meso-TiO2. In addition, an increase of 17% in the fill factor was achieved by tailoring the thickness of the meso-STO layer. We found that the application of STO leads to uniform perovskite layers with large grains and complete surface coverage, leading to a high shunt resistance and improved performance. These findings suggest STO as a competitive candidate as electron transport material in organometal perovskite solar cells.
KAUST Department:
Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC); Chemical Science Program; Laboratory of Nano Oxides for Sustainable Energy
Publisher:
American Chemical Society (ACS)
Journal:
The Journal of Physical Chemistry C
Issue Date:
11-Dec-2014
DOI:
10.1021/jp509753p
Type:
Article
ISSN:
19327447
Sponsors:
Research reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; Materials Science and Engineering Program; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorBera, Ashoken
dc.contributor.authorWu, Keweien
dc.contributor.authorSheikh, Arif D.en
dc.contributor.authorAlarousu, Erkkien
dc.contributor.authorMohammed, Omar F.en
dc.contributor.authorWu, Taoen
dc.date.accessioned2015-08-03T12:19:28Zen
dc.date.available2015-08-03T12:19:28Zen
dc.date.issued2014-12-11en
dc.identifier.issn19327447en
dc.identifier.doi10.1021/jp509753pen
dc.identifier.urihttp://hdl.handle.net/10754/563917en
dc.description.abstractIn this work, we explored perovskite oxide SrTiO3 (STO) for the first time as the electron-transporting layer in organolead trihalide perovskite solar cells. The steady-state photoluminescence (PL) quenching and transient absorption experiments revealed efficient photoelectron transfer from CH3NH3PbI3-xClx to STO. Perovskite solar cells with meso-STO exhibit an open circuit voltage of 1.01 V, which is 25% higher than the value of 0.81 V achieved in the control device with the conventional meso-TiO2. In addition, an increase of 17% in the fill factor was achieved by tailoring the thickness of the meso-STO layer. We found that the application of STO leads to uniform perovskite layers with large grains and complete surface coverage, leading to a high shunt resistance and improved performance. These findings suggest STO as a competitive candidate as electron transport material in organometal perovskite solar cells.en
dc.description.sponsorshipResearch reported in this publication was supported by the King Abdullah University of Science and Technology (KAUST).en
dc.publisherAmerican Chemical Society (ACS)en
dc.titlePerovskite oxide SrTiO3 as an efficient electron transporter for hybrid perovskite solar cellsen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentSolar and Photovoltaic Engineering Research Center (SPERC)en
dc.contributor.departmentChemical Science Programen
dc.contributor.departmentLaboratory of Nano Oxides for Sustainable Energyen
dc.identifier.journalThe Journal of Physical Chemistry Cen
kaust.authorBera, Ashoken
kaust.authorWu, Keweien
kaust.authorSheikh, Arif D.en
kaust.authorAlarousu, Erkkien
kaust.authorMohammed, Omar F.en
kaust.authorWu, Taoen
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