Improved Morphology and Efficiency of n-i-p Planar Perovskite Solar Cells by Processing with Glycol Ether Additives

Handle URI:
http://hdl.handle.net/10754/625295
Title:
Improved Morphology and Efficiency of n-i-p Planar Perovskite Solar Cells by Processing with Glycol Ether Additives
Authors:
Ugur, Esma; Sheikh, Arif D. ( 0000-0003-3823-0947 ) ; Munir, Rahim ( 0000-0002-6029-3760 ) ; Khan, Jafar Iqbal; Barrit, Dounya; Amassian, Aram ( 0000-0002-5734-1194 ) ; Laquai, Frederic ( 0000-0002-5887-6158 )
Abstract:
Planar perovskite solar cells can be prepared without high temperature processing steps typically associated with mesoporous device architectures; however, their efficiency has been lower and producing high quality perovskite films in planar devices has been challenging. Here, we report a modified two-step interdiffusion protocol suitable to prepare pin-hole free perovskite films with greatly improved morphology. This is achieved by simple addition of small amounts of glycol ethers to the preparation protocol. We unravel the impact the glycol ethers have on the perovskite film formation using in-situ UV-Vis absorbance and GIWAXS experiments. From these experiments we conclude: addition of glycol ethers changes the lead iodide to perovskite conversion dynamics and enhances the conversion efficiency, resulting in more compact polycrystalline films, and it creates micrometer-sized perovskite crystals vertically-aligned across the photoactive layer. Consequently, the average photovoltaic performance increases from 13.5% to 15.9% and reproduciability is enhanced, specifically when 2-methoxyethanol is used as additive.
KAUST Department:
KAUST Solar Center (KSC); Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division
Citation:
Ugur E, Sheikh AD, Munir R, Khan JI, Barrit D, et al. (2017) Improved Morphology and Efficiency of n-i-p Planar Perovskite Solar Cells by Processing with Glycol Ether Additives. ACS Energy Letters. Available: http://dx.doi.org/10.1021/acsenergylett.7b00526.
Publisher:
American Chemical Society (ACS)
Journal:
ACS Energy Letters
Issue Date:
31-Jul-2017
DOI:
10.1021/acsenergylett.7b00526
Type:
Article
ISSN:
2380-8195; 2380-8195
Sponsors:
This work was supported by the King Abdullah University of Science and Technology (KAUST). GIWAXS measurements were performed at D-line at the Cornell High Energy Synchrotron Source (CHESS) at Cornell University. CHESS is supported by the NSF & NIH/NIGMS via NSF award DMR-1332208.
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acsenergylett.7b00526
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorUgur, Esmaen
dc.contributor.authorSheikh, Arif D.en
dc.contributor.authorMunir, Rahimen
dc.contributor.authorKhan, Jafar Iqbalen
dc.contributor.authorBarrit, Dounyaen
dc.contributor.authorAmassian, Aramen
dc.contributor.authorLaquai, Fredericen
dc.date.accessioned2017-08-07T10:52:00Z-
dc.date.available2017-08-07T10:52:00Z-
dc.date.issued2017-07-31en
dc.identifier.citationUgur E, Sheikh AD, Munir R, Khan JI, Barrit D, et al. (2017) Improved Morphology and Efficiency of n-i-p Planar Perovskite Solar Cells by Processing with Glycol Ether Additives. ACS Energy Letters. Available: http://dx.doi.org/10.1021/acsenergylett.7b00526.en
dc.identifier.issn2380-8195en
dc.identifier.issn2380-8195en
dc.identifier.doi10.1021/acsenergylett.7b00526en
dc.identifier.urihttp://hdl.handle.net/10754/625295-
dc.description.abstractPlanar perovskite solar cells can be prepared without high temperature processing steps typically associated with mesoporous device architectures; however, their efficiency has been lower and producing high quality perovskite films in planar devices has been challenging. Here, we report a modified two-step interdiffusion protocol suitable to prepare pin-hole free perovskite films with greatly improved morphology. This is achieved by simple addition of small amounts of glycol ethers to the preparation protocol. We unravel the impact the glycol ethers have on the perovskite film formation using in-situ UV-Vis absorbance and GIWAXS experiments. From these experiments we conclude: addition of glycol ethers changes the lead iodide to perovskite conversion dynamics and enhances the conversion efficiency, resulting in more compact polycrystalline films, and it creates micrometer-sized perovskite crystals vertically-aligned across the photoactive layer. Consequently, the average photovoltaic performance increases from 13.5% to 15.9% and reproduciability is enhanced, specifically when 2-methoxyethanol is used as additive.en
dc.description.sponsorshipThis work was supported by the King Abdullah University of Science and Technology (KAUST). GIWAXS measurements were performed at D-line at the Cornell High Energy Synchrotron Source (CHESS) at Cornell University. CHESS is supported by the NSF & NIH/NIGMS via NSF award DMR-1332208.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acsenergylett.7b00526en
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Energy Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acsenergylett.7b00526.en
dc.titleImproved Morphology and Efficiency of n-i-p Planar Perovskite Solar Cells by Processing with Glycol Ether Additivesen
dc.typeArticleen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalACS Energy Lettersen
dc.eprint.versionPost-printen
kaust.authorUgur, Esmaen
kaust.authorSheikh, Arif D.en
kaust.authorMunir, Rahimen
kaust.authorKhan, Jafar Iqbalen
kaust.authorBarrit, Dounyaen
kaust.authorAmassian, Aramen
kaust.authorLaquai, Fredericen
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