Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation

Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation

A mixed-halide (I/Br) 2D/3D perovskite is formed by incorporating bromide via quaternary alkylammonium salt and iodide via methylammonium iodide. The X-ray diffraction analysis reveals the 2D/3D mixed constitution, with both components having mixed halide stoichiometry. Importantly, this tetrabutyla...

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Main Authors: Prachi Kour, Mallu Chenna Reddy, Rounak Naphade, Satishchandra Ogale
Format: Article
Language:English
Published: AIP Publishing LLC 2018-08-01
Series:APL Materials
Online Access:http://dx.doi.org/10.1063/1.5042449
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spelling doaj-ffc04992030649cebd309c328c942ace2020-11-24T22:57:52ZengAIP Publishing LLCAPL Materials2166-532X2018-08-0168086107086107-710.1063/1.5042449004808APMQuaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregationPrachi Kour0Mallu Chenna Reddy1Rounak Naphade2Satishchandra Ogale3Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan Pune 411 008, IndiaDepartment of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan Pune 411 008, IndiaDepartment of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan Pune 411 008, IndiaDepartment of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER), Dr. Homi Bhabha Road, Pashan Pune 411 008, IndiaA mixed-halide (I/Br) 2D/3D perovskite is formed by incorporating bromide via quaternary alkylammonium salt and iodide via methylammonium iodide. The X-ray diffraction analysis reveals the 2D/3D mixed constitution, with both components having mixed halide stoichiometry. Importantly, this tetrabutylammonium incorporated material not only exhibits almost two orders of magnitude enhancement of photoluminescence intensity but concurrently a higher photo-stability (at the desirable bandgap of 1.77 eV) than the pure 3D mixed halide case. Moreover, a significant increase (from 8.8 ns to 63 ns) is observed in the lifetime of the photo-generated carriers in the mixed halide 2D/3D material.http://dx.doi.org/10.1063/1.5042449
collection DOAJ
language English
format Article
sources DOAJ
author Prachi Kour
Mallu Chenna Reddy
Rounak Naphade
Satishchandra Ogale
spellingShingle Prachi Kour
Mallu Chenna Reddy
Rounak Naphade
Satishchandra Ogale
Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation
APL Materials
author_facet Prachi Kour
Mallu Chenna Reddy
Rounak Naphade
Satishchandra Ogale
author_sort Prachi Kour
title Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation
title_short Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation
title_full Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation
title_fullStr Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation
title_full_unstemmed Quaternary alkylammonium salt incorporated 2D/3D mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation
title_sort quaternary alkylammonium salt incorporated 2d/3d mixed halide perovskite with highly enhanced photoluminescence and arrested iodide/bromide phase segregation
publisher AIP Publishing LLC
series APL Materials
issn 2166-532X
publishDate 2018-08-01
description A mixed-halide (I/Br) 2D/3D perovskite is formed by incorporating bromide via quaternary alkylammonium salt and iodide via methylammonium iodide. The X-ray diffraction analysis reveals the 2D/3D mixed constitution, with both components having mixed halide stoichiometry. Importantly, this tetrabutylammonium incorporated material not only exhibits almost two orders of magnitude enhancement of photoluminescence intensity but concurrently a higher photo-stability (at the desirable bandgap of 1.77 eV) than the pure 3D mixed halide case. Moreover, a significant increase (from 8.8 ns to 63 ns) is observed in the lifetime of the photo-generated carriers in the mixed halide 2D/3D material.
url http://dx.doi.org/10.1063/1.5042449
work_keys_str_mv AT prachikour quaternaryalkylammoniumsaltincorporated2d3dmixedhalideperovskitewithhighlyenhancedphotoluminescenceandarrestediodidebromidephasesegregation
AT malluchennareddy quaternaryalkylammoniumsaltincorporated2d3dmixedhalideperovskitewithhighlyenhancedphotoluminescenceandarrestediodidebromidephasesegregation
AT rounaknaphade quaternaryalkylammoniumsaltincorporated2d3dmixedhalideperovskitewithhighlyenhancedphotoluminescenceandarrestediodidebromidephasesegregation
AT satishchandraogale quaternaryalkylammoniumsaltincorporated2d3dmixedhalideperovskitewithhighlyenhancedphotoluminescenceandarrestediodidebromidephasesegregation
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