Highly Luminescent and Stable 2D/3D Octadecylammonium/Formamidinium Lead Bromide Perovskite Films

Zonghui Duan; Shixun Wang; Jinsong Qi; Arsenii S. Portniagin; Aaron Döring; Stephen V. Kershaw; Andrey L. Rogach

doi:10.1021/acs.jpcc.1c04881

Highly Luminescent and Stable 2D/3D Octadecylammonium/Formamidinium Lead Bromide Perovskite Films

Zonghui Duan, Shixun Wang, Jinsong Qi, Arsenii S. Portniagin, Aaron Döring, Stephen V. Kershaw, Andrey L. Rogach^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

Abstract

We developed a facile approach to fabricate highly luminescent and stable quasi-2D/3D (ODA)₂FA_n-1Pb_nBr_3n+1/FAPbBr₃ (ODA: octadecylammonium; FA: formamidinium) perovskite films. Trace amounts of octadecylamine dissolved in toluene used as an antisolvent were partially protonated by FAPbBr₃ and interacted with [PbBr₆]^4- octahedral layers, forming quasi-2D perovskites. Moreover, octadecylamine uniformly and densely covered the perovskite surface rendering it hydrophobic and prevented penetration of water, making these perovskite films stable and strongly luminescent in water for several tens of minutes without any encapsulation. Adjusting the concentration of octadecylamine, we were able to produce perovskite films with an exceptionally high photoluminescence quantum yield (PL QY) of 91%, which was ascribed to the efficient energy funneling from the 2D to the 3D perovskite phase and the passivation action of the organic additive.

Original language	English
Pages (from-to)	17501−17508
Journal	The Journal of Physical Chemistry C
Volume	125
Issue number	31
Online published	3 Aug 2021
DOIs	https://doi.org/10.1021/acs.jpcc.1c04881
Publication status	Published - 12 Aug 2021

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title = "Highly Luminescent and Stable 2D/3D Octadecylammonium/Formamidinium Lead Bromide Perovskite Films",

abstract = "We developed a facile approach to fabricate highly luminescent and stable quasi-2D/3D (ODA)2FAn-1PbnBr3n+1/FAPbBr3 (ODA: octadecylammonium; FA: formamidinium) perovskite films. Trace amounts of octadecylamine dissolved in toluene used as an antisolvent were partially protonated by FAPbBr3 and interacted with [PbBr6]4- octahedral layers, forming quasi-2D perovskites. Moreover, octadecylamine uniformly and densely covered the perovskite surface rendering it hydrophobic and prevented penetration of water, making these perovskite films stable and strongly luminescent in water for several tens of minutes without any encapsulation. Adjusting the concentration of octadecylamine, we were able to produce perovskite films with an exceptionally high photoluminescence quantum yield (PL QY) of 91%, which was ascribed to the efficient energy funneling from the 2D to the 3D perovskite phase and the passivation action of the organic additive.",

author = "Zonghui Duan and Shixun Wang and Jinsong Qi and Portniagin, {Arsenii S.} and Aaron D{\"o}ring and Kershaw, {Stephen V.} and Rogach, {Andrey L.}",

year = "2021",

month = aug,

day = "12",

doi = "10.1021/acs.jpcc.1c04881",

language = "English",

volume = "125",

pages = "17501−17508",

journal = "The Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "American Chemical Society",

number = "31",

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TY - JOUR

T1 - Highly Luminescent and Stable 2D/3D Octadecylammonium/Formamidinium Lead Bromide Perovskite Films

AU - Duan, Zonghui

AU - Wang, Shixun

AU - Qi, Jinsong

AU - Portniagin, Arsenii S.

AU - Döring, Aaron

AU - Kershaw, Stephen V.

AU - Rogach, Andrey L.

PY - 2021/8/12

Y1 - 2021/8/12

N2 - We developed a facile approach to fabricate highly luminescent and stable quasi-2D/3D (ODA)2FAn-1PbnBr3n+1/FAPbBr3 (ODA: octadecylammonium; FA: formamidinium) perovskite films. Trace amounts of octadecylamine dissolved in toluene used as an antisolvent were partially protonated by FAPbBr3 and interacted with [PbBr6]4- octahedral layers, forming quasi-2D perovskites. Moreover, octadecylamine uniformly and densely covered the perovskite surface rendering it hydrophobic and prevented penetration of water, making these perovskite films stable and strongly luminescent in water for several tens of minutes without any encapsulation. Adjusting the concentration of octadecylamine, we were able to produce perovskite films with an exceptionally high photoluminescence quantum yield (PL QY) of 91%, which was ascribed to the efficient energy funneling from the 2D to the 3D perovskite phase and the passivation action of the organic additive.

AB - We developed a facile approach to fabricate highly luminescent and stable quasi-2D/3D (ODA)2FAn-1PbnBr3n+1/FAPbBr3 (ODA: octadecylammonium; FA: formamidinium) perovskite films. Trace amounts of octadecylamine dissolved in toluene used as an antisolvent were partially protonated by FAPbBr3 and interacted with [PbBr6]4- octahedral layers, forming quasi-2D perovskites. Moreover, octadecylamine uniformly and densely covered the perovskite surface rendering it hydrophobic and prevented penetration of water, making these perovskite films stable and strongly luminescent in water for several tens of minutes without any encapsulation. Adjusting the concentration of octadecylamine, we were able to produce perovskite films with an exceptionally high photoluminescence quantum yield (PL QY) of 91%, which was ascribed to the efficient energy funneling from the 2D to the 3D perovskite phase and the passivation action of the organic additive.

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U2 - 10.1021/acs.jpcc.1c04881

DO - 10.1021/acs.jpcc.1c04881

M3 - RGC 21 - Publication in refereed journal

SN - 1932-7447

VL - 125

SP - 17501−17508

JO - The Journal of Physical Chemistry C

JF - The Journal of Physical Chemistry C

IS - 31

ER -

Highly Luminescent and Stable 2D/3D Octadecylammonium/Formamidinium Lead Bromide Perovskite Films

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CRF-ExtU-Lead: Low-dimensional Perovskite Materials for Efficient and Stable Light Emitting Diodes: Materials, Devices and Fundamental Understanding

NSFC: Synthesis of Anisotropic Perovskite Nanocrystals with Polarized Emission for Light Emitting Diodes

Cite this

Highly Luminescent and Stable 2D/3D Octadecylammonium/Formamidinium Lead Bromide Perovskite Films

Abstract

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Projects

CRF-ExtU-Lead: Low-dimensional Perovskite Materials for Efficient and Stable Light Emitting Diodes: Materials, Devices and Fundamental Understanding

NSFC: Synthesis of Anisotropic Perovskite Nanocrystals with Polarized Emission for Light Emitting Diodes

Cite this