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http://hdl.handle.net/1942/29813
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DC Field | Value | Language |
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dc.contributor.author | Bhatia, Harshita | - |
dc.contributor.author | Steele, Julian A. | - |
dc.contributor.author | Martin, Cristina | - |
dc.contributor.author | Keshavarz, Masoumeh | - |
dc.contributor.author | Solis-Fernandez, Guillermo | - |
dc.contributor.author | Yuan, Haifen | - |
dc.contributor.author | Fleury, Guillaume | - |
dc.contributor.author | Huang, Haowei | - |
dc.contributor.author | Dovgaliuk, Iurii | - |
dc.contributor.author | Chernyshov, Dmitry | - |
dc.contributor.author | HENDRIX, Jelle | - |
dc.contributor.author | Roeffaers, Maarten B. J. | - |
dc.contributor.author | Hofkens, Johan | - |
dc.contributor.author | Debroye, Elke | - |
dc.date.accessioned | 2019-10-22T09:16:59Z | - |
dc.date.available | 2019-10-22T09:16:59Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | CHEMISTRY OF MATERIALS, 31(17), p. 6824-6832 | - |
dc.identifier.issn | 0897-4756 | - |
dc.identifier.uri | http://hdl.handle.net/1942/29813 | - |
dc.description.abstract | Metal trihalide perovskites are rapidly redefining the landscape of solid-state semiconductors utilized as an active medium in photovoltaics and in light generation. Within this materials space, organic-inorganic hybrid formamidinium lead bromide (FAPbBr(3)) has arisen as a promising candidate for efferent light emitting devices, due to its capacity for sharp and bright green light emissions (530 nm). Herein we have applied a facile single-step ligand-mediated method for phase-controlled synthesis of FAPbBr(3) cube- and rod-shaped nanocrystals (NCs), starting from different ratios of precursor agents. Examining their structural and optoelectronic properties-using a combination of synchrotron X-ray diffraction, X-ray spectroscopy, scanning electron microscopy, and steady-state and time-resolved photoluminescence (PL)-we reveal the two NC types to fundamentally differ. While the cube-shaped NCs exhibit properties aligning with those of bulk FAPbBr(3), the nanorods exhibit a two-phase microstructure and the coexistence of both a typical cubic perovskite structure alongside the formation of a new low-symmetry monoclinic phase (P2/m). Further, the two-phase nanorods display a bright dual PL emission (peaks centered near 490 and 530 nm) and complex luminescence dynamics, properties characteristic of quasi-2D perovskites. The two phase nanorod generation can be assigned to the proton exchange in the presence of excess of FA(+) during the synthesis. | - |
dc.description.sponsorship | The authors acknowledge financial support from the Research Foundation -Flanders (FWO Grant Numbers G.0B39.15, G.0B49.15, G098319N, and ZW15_09-G0H6316), the EC Marie Curie ITN -iSwitch PhD fellowship to H.B. (Grant Number 642196), the Research Foundation -Flanders postdoctoral fellowships to J.A.S., C.M., M.K., H.Y., and E.D. (FWO Grant Numbers 12Y7218N, 12J1716N, 12Y6418N, 12R8718N, and 1203719N, respectively), the Research Foundation -Flanders PhD fellowship to G.S.-F. (FWO Grant Number 1193818N), the KU Leuven Research Fund (C14/15/053), the Flemish government through long term structural funding Methusalem (CASAS2, Meth/15/04), and the Hercules foundation (HER/11/14). J.A.S. and H.Y. acknowledge the XRD support provided by Vadim Diadkin on BM01 at the ESRF. | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.rights | American Chemical Society. | - |
dc.title | Single-Step Synthesis of Dual Phase Bright Blue-Green Emitting Lead Halide Perovskite Nanocrystal Thin Films | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 6832 | - |
dc.identifier.issue | 17 | - |
dc.identifier.spage | 6824 | - |
dc.identifier.volume | 31 | - |
local.format.pages | 9 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | [Bhatia, Harshita; Martin, Cristina; Keshavarz, Masoumeh; Solis-Fernandez, Guillermo; Yuan, Haifen; Hendrix, Jelle; Hofkens, Johan; Debroye, Elke] Katholieke Univ Leuven, Dept Chem, Celestijnenlaan 200F, B-3001 Leuven, Belgium. [Steele, Julian A.; Fleury, Guillaume; Huang, Haowei; Roeffaers, Maarten B. J.] Katholieke Univ Leuven, Dept Microbial & Mol Syst, Ctr Surface Chem & Catalysis, B-3001 Leuven, Belgium. [Martin, Cristina] Univ Castilla La Mancha, Fac Farm, Dept Quim Fis, Albacete 02071, Spain. [Dovgaliuk, Iurii; Chernyshov, Dmitry] Swiss Norwegian Beamlines European Synchrotron Ra, 71 Ave Martyrs, F-38000 Grenoble, France. [Hendrix, Jelle] Hasselt Univ, Dynam Bioimaging Lab, Adv Opt Microscopy Ctr, Agoralaan C BIOMED, B-3590 Diepenbeek, Belgium. [Hendrix, Jelle] Hasselt Univ, Biomed Res Inst, Agoralaan C BIOMED, B-3590 Diepenbeek, Belgium. | - |
local.publisher.place | WASHINGTON | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.identifier.doi | 10.1021/acs.chemmater.9b01277 | - |
dc.identifier.isi | 000485830300051 | - |
item.fullcitation | Bhatia, Harshita; Steele, Julian A.; Martin, Cristina; Keshavarz, Masoumeh; Solis-Fernandez, Guillermo; Yuan, Haifen; Fleury, Guillaume; Huang, Haowei; Dovgaliuk, Iurii; Chernyshov, Dmitry; HENDRIX, Jelle; Roeffaers, Maarten B. J.; Hofkens, Johan & Debroye, Elke (2019) Single-Step Synthesis of Dual Phase Bright Blue-Green Emitting Lead Halide Perovskite Nanocrystal Thin Films. In: CHEMISTRY OF MATERIALS, 31(17), p. 6824-6832. | - |
item.validation | ecoom 2020 | - |
item.accessRights | Open Access | - |
item.fulltext | With Fulltext | - |
item.contributor | Bhatia, Harshita | - |
item.contributor | Steele, Julian A. | - |
item.contributor | Martin, Cristina | - |
item.contributor | Keshavarz, Masoumeh | - |
item.contributor | Solis-Fernandez, Guillermo | - |
item.contributor | Yuan, Haifen | - |
item.contributor | Fleury, Guillaume | - |
item.contributor | Huang, Haowei | - |
item.contributor | Dovgaliuk, Iurii | - |
item.contributor | Chernyshov, Dmitry | - |
item.contributor | HENDRIX, Jelle | - |
item.contributor | Roeffaers, Maarten B. J. | - |
item.contributor | Hofkens, Johan | - |
item.contributor | Debroye, Elke | - |
crisitem.journal.issn | 0897-4756 | - |
crisitem.journal.eissn | 1520-5002 | - |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
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bhatia 1.pdf Restricted Access | Published version | 2.99 MB | Adobe PDF | View/Open Request a copy |
bhatia2019.pdf | Peer-reviewed author version | 1.35 MB | Adobe PDF | View/Open |
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