Show simple item record

dc.contributor.authorHo, Kang-Ting
dc.contributor.authorLeung, Siu
dc.contributor.authorLi, Ting-You
dc.contributor.authorMaity, Partha
dc.contributor.authorCheng, Bin
dc.contributor.authorFu, Hui-Chun
dc.contributor.authorMohammed, Omar F.
dc.contributor.authorHe, Jr-Hau
dc.date.accessioned2018-12-31T13:44:14Z
dc.date.available2018-12-31T13:44:14Z
dc.date.issued2018-10-01
dc.identifier.citationHo K-T, Leung S-F, Li T-Y, Maity P, Cheng B, et al. (2018) Surface Effect on 2D Hybrid Perovskite Crystals: Perovskites Using an Ethanolamine Organic Layer as an Example. Advanced Materials 30: 1804372. Available: http://dx.doi.org/10.1002/adma.201804372.
dc.identifier.issn0935-9648
dc.identifier.doi10.1002/adma.201804372
dc.identifier.urihttp://hdl.handle.net/10754/630574
dc.description.abstractDespite the remarkable progress of optoelectronic devices based on hybrid perovskites, there are significant drawbacks, which have largely hindered their development as an alternative of silicon. For instance, hybrid perovskites are well-known to suffer from moisture instability which leads to surface degradation. Nonetheless, the dependence of the surface effect on the moisture stability and optoelectronic properties of hybrid perovskites has not been fully investigated. In this work, the influence of the surface effect of 2D layered perovskites before and after mechanical exfoliation, representing rough and smooth surfaces of perovskite crystals, are studied. It is found that the smooth 2D perovskite is less sensitive to ambient moisture and exhibits a considerably low dark current, which outperforms the rough perovskites by 23.6 times in terms of photodetectivity. The superior moisture stability of the smooth perovskites over the rough perovskites is demonstrated. Additionally, ethanolamine is employed as an organic linker of the 2D layered perovskite, which further improves the moisture stability. This work reveals the strong dependence of the surface conditions of 2D hybrid perovskite crystals on their moisture stability and optoelectronic properties, which are of utmost importance to the design of practical optoelectronic devices based on hybrid perovskite crystals.
dc.description.sponsorshipK.T.H. and S.F.L. contributed equally to this work. This work was financially supported by the Office of Sponsored Research of King Abdullah University of Science and Technology (KAUST), KAUST Sensor Initiativ, KAUST Solar Center, and KAUST baseline funding.
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/full/10.1002/adma.201804372
dc.subjectOptoelectronics
dc.subjectPerovskites
dc.subject2D Materials
dc.subjectSurface Effect
dc.subjectMoisture Stability
dc.titleSurface Effect on 2D Hybrid Perovskite Crystals: Perovskites Using an Ethanolamine Organic Layer as an Example
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentNano Energy Lab
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentUltrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
dc.identifier.journalAdvanced Materials
kaust.personHo, Kang Ting
kaust.personLeung, Siu
kaust.personLi, Ting You
kaust.personMaity, Partha
kaust.personCheng, Bin
kaust.personFu, Hui-chun
kaust.personMohammed, Omar F.
kaust.personHe, Jr-Hau
dc.date.published-online2018-10-01
dc.date.published-print2018-11


This item appears in the following Collection(s)

Show simple item record