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https://hdl.handle.net/10356/86312
Title: | Broadband Emission in Two-Dimensional Hybrid Perovskites: The Role of Structural Deformation | Authors: | Cortecchia, Daniele Neutzner, Stefanie Srimath Kandada, Ajay Ram Mosconi, Edoardo Meggiolaro, Daniele De Angelis, Filippo Soci, Cesare Petrozza, Annamaria |
Keywords: | Structural deformation Broadband emission |
Issue Date: | 2016 | Source: | Cortecchia, D., Neutzner, S., Srimath Kandada, A. R., Mosconi, E., Meggiolaro, D., De Angelis, F., et al. (2017). Broadband Emission in Two-Dimensional Hybrid Perovskites: The Role of Structural Deformation. Journal of the American Chemical Society, 139(1), 39-42. | Series/Report no.: | Journal of the American Chemical Society | Abstract: | Only a selected group of two-dimensional (2D) lead–halide perovskites shows a peculiar broad-band photoluminescence. Here we show that the structural distortions of the perovskite lattice can determine the defectivity of the material by modulating the defect formation energies. By selecting and comparing two archetype systems, namely, (NBT)2PbI4 and (EDBE)PbI4 perovskites (NBT = n-butylammonium and EDBE = 2,2-(ethylenedioxy)bis(ethylammonium)), we find that only the latter, subject to larger deformation of the Pb–X bond length and X–Pb–X bond angles, sees the formation of VF color centers whose radiative decay ultimately leads to broadened PL. These findings highlight the importance of structural engineering to control the optoelectronic properties of this class of soft materials. | Description: | 19 p. | URI: | https://hdl.handle.net/10356/86312 http://hdl.handle.net/10220/43965 |
ISSN: | 0002-7863 | DOI: | 10.1021/jacs.6b10390 | Rights: | © 2016 American Chemical Society (ACS). This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of the American Chemical Society, ACS. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1021/jacs.6b10390]. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | ERI@N Journal Articles IGS Journal Articles SPMS Journal Articles |
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Broadband Emission in Two-Dimensional Hybrid Perovskites _ The Role of Structural Deformation.pdf | 2.33 MB | Adobe PDF | ![]() View/Open |
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