Highly Efficient Broadband Yellow Phosphor Based on Zero-Dimensional Tin Mixed-Halide Perovskite

Chenkun Zhou; Yu Tian; Zhao Yuan; Haoran Lin; Banghao Chen; Ronald Clark; Tristan Dilbeck; Yan Zhou; Joseph Hurley; Jennifer Neu; Tiglet Besara; Theo Siegrist; Peter Djurovich; Biwu Ma

doi:10.1021/acsami.7b12862

Highly Efficient Broadband Yellow Phosphor Based on Zero-Dimensional Tin Mixed-Halide Perovskite

Chenkun Zhou, Yu Tian, Zhao Yuan, Haoran Lin, Banghao Chen, Ronald Clark, Tristan Dilbeck, Yan Zhou, Joseph Hurley, Jennifer Neu, Tiglet Besara, Theo Siegrist, Peter Djurovich, Biwu Ma

Research output: Contribution to journal › Article › peer-review

179 Scopus citations

Abstract

Organic-inorganic hybrid metal halide perovskites have emerged as a highly promising class of light emitters, which can be used as phosphors for optically pumped white light-emitting diodes (WLEDs). By controlling the structural dimensionality, metal halide perovskites can exhibit tunable narrow and broadband emissions from the free-exciton and self-trapped excited states, respectively. Here, we report a highly efficient broadband yellow light emitter based on zero-dimensional tin mixed-halide perovskite (C₄N₂H₁₄Br)₄SnBr_xI_6-x (x = 3). This rare-earth-free ionically bonded crystalline material possesses a perfect host-dopant structure, in which the light-emitting metal halide species (SnBr_xI_6-x^4-, x = 3) are completely isolated from each other and embedded in the wide band gap organic matrix composed of C₄N₂H₁₄Br^-. The strongly Stokes-shifted broadband yellow emission that peaked at 582 nm from this phosphor, which is a result of excited state structural reorganization, has an extremely large full width at half-maximum of 126 nm and a high photoluminescence quantum efficiency of ∼85% at room temperature. UV-pumped WLEDs fabricated using this yellow emitter together with a commercial europium-doped barium magnesium aluminate blue phosphor (BaMgAl₁₀O₁₇:Eu²⁺) can exhibit high color rendering indexes of up to 85.

Original language	English
Pages (from-to)	44579-44583
Number of pages	5
Journal	ACS Applied Materials and Interfaces
Volume	9
Issue number	51
DOIs	https://doi.org/10.1021/acsami.7b12862
State	Published - Dec 27 2017
Externally published	Yes

Funding

The authors acknowledge the Florida State University (FSU) for financial support through the Energy and Materials Initiative and GAP Commercialization Grant Program. FSU and National Science Foundation (NSF) Major Research Instrumentation (MRI) program (NSF 1126587) are appreciated for the support of the upgrades to the solid-state NMR facility. The authors also thank Dr. Hanwei Gao for providing access to the instrument for photostability test, Dr. Victor Terskikh and Canada National Ultrahigh-Field NMR Facility for access to CASTEP software.

Funders	Funder number
Energy and Materials Initiative
National Science Foundation	NSF 1126587, 1531629
Florida State University

Keywords

0D structure
lead-free
perovskite
white LEDs
yellow phosphor

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10.1021/acsami.7b12862

Cite this

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title = "Highly Efficient Broadband Yellow Phosphor Based on Zero-Dimensional Tin Mixed-Halide Perovskite",

abstract = "Organic-inorganic hybrid metal halide perovskites have emerged as a highly promising class of light emitters, which can be used as phosphors for optically pumped white light-emitting diodes (WLEDs). By controlling the structural dimensionality, metal halide perovskites can exhibit tunable narrow and broadband emissions from the free-exciton and self-trapped excited states, respectively. Here, we report a highly efficient broadband yellow light emitter based on zero-dimensional tin mixed-halide perovskite (C4N2H14Br)4SnBrxI6-x (x = 3). This rare-earth-free ionically bonded crystalline material possesses a perfect host-dopant structure, in which the light-emitting metal halide species (SnBrxI6-x4-, x = 3) are completely isolated from each other and embedded in the wide band gap organic matrix composed of C4N2H14Br-. The strongly Stokes-shifted broadband yellow emission that peaked at 582 nm from this phosphor, which is a result of excited state structural reorganization, has an extremely large full width at half-maximum of 126 nm and a high photoluminescence quantum efficiency of ∼85% at room temperature. UV-pumped WLEDs fabricated using this yellow emitter together with a commercial europium-doped barium magnesium aluminate blue phosphor (BaMgAl10O17:Eu2+) can exhibit high color rendering indexes of up to 85.",

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AU - Zhou, Chenkun

AU - Tian, Yu

AU - Yuan, Zhao

AU - Lin, Haoran

AU - Chen, Banghao

AU - Clark, Ronald

AU - Dilbeck, Tristan

AU - Zhou, Yan

AU - Hurley, Joseph

AU - Neu, Jennifer

AU - Besara, Tiglet

AU - Siegrist, Theo

AU - Djurovich, Peter

AU - Ma, Biwu

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AB - Organic-inorganic hybrid metal halide perovskites have emerged as a highly promising class of light emitters, which can be used as phosphors for optically pumped white light-emitting diodes (WLEDs). By controlling the structural dimensionality, metal halide perovskites can exhibit tunable narrow and broadband emissions from the free-exciton and self-trapped excited states, respectively. Here, we report a highly efficient broadband yellow light emitter based on zero-dimensional tin mixed-halide perovskite (C4N2H14Br)4SnBrxI6-x (x = 3). This rare-earth-free ionically bonded crystalline material possesses a perfect host-dopant structure, in which the light-emitting metal halide species (SnBrxI6-x4-, x = 3) are completely isolated from each other and embedded in the wide band gap organic matrix composed of C4N2H14Br-. The strongly Stokes-shifted broadband yellow emission that peaked at 582 nm from this phosphor, which is a result of excited state structural reorganization, has an extremely large full width at half-maximum of 126 nm and a high photoluminescence quantum efficiency of ∼85% at room temperature. UV-pumped WLEDs fabricated using this yellow emitter together with a commercial europium-doped barium magnesium aluminate blue phosphor (BaMgAl10O17:Eu2+) can exhibit high color rendering indexes of up to 85.

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Highly Efficient Broadband Yellow Phosphor Based on Zero-Dimensional Tin Mixed-Halide Perovskite

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