Antimony doping to enhance luminescence of tin(<scp>iv</scp>)-based hybrid metal halides

Liu, Kunjie; Hao, Shiqiang; Cao, Jindong; Lin, Jiawei; Fan, Liubing; Zhang, Xusheng; Guo, Zhongnan; Wolverton, Chris; Zhao, Jing; Liu, Quanlin

doi:10.1039/d2qi00884j

Cited by 14 publications

(15 citation statements)

References 45 publications

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“…Among lead-free 0D OIMHs, In-based materials have garnered attention and have made significant recent progress due to their stability, low-toxicity, and excellent luminescent properties. − However, the luminescent efficiency of In-based metal halides remains poor. , Metal doping strategies have been verified as feasible methods to obtain enhanced PLQY. The highly efficient emission of In-based OIMHs through Sb doping has been reported in previous works. − Yuan et al reported 0D In-based OIMHs, (C 7 H 8 N 3 ) 3 InBr 6 ·H 2 O and (C 11 H 24 N 2 ) 2 [InBr 6 ][InBr 4 ], with low emission efficiency. The PLQYs were significantly enhanced from <10 to 52 and 61% by Sb doping.…”

Section: Introductionmentioning

confidence: 78%

Antimony-Triggered Tunable White Light Emission in Lead-Free Zero-Dimensional Indium Halide with Ultrastable CCT of White Light Emitting Diodes

Wu,

Zhen,

Zhang

2023

Inorg. Chem.

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A highly efficient and easily tunable luminescence is significant for solid-state luminescent (SSL) materials. However, achieving a photoluminescence quantum yield (PLQY) close to unity and tuning the emission remain challenging tasks. Metal doping strategies enable resolution of these issues. Herein, we report the preparation of a novel organic−inorganic lead-free indium-based metal halide hybrid (MP) 3 InCl 6 •EtOH (MP = C 4 H 10 ON) with a typical zero-dimension structure. When excited at 320 nm, (MP) 3 InCl 6 •EtOH exhibits a dual emission band at 420 and 600 nm, which originates from the organic cation [MP] and the [InCl 6 ] 3− octahedral unit. The photoluminescence can be significantly enhanced through Sb 3+ doping, resulting in an increase in PLQY from 0.78% to near unity. Multiple emission color tunings have been achieved by regulating the Sb doping level and the radiation wavelength, resulting in a change in emission color from blue → white → orange. Optical characterizations reveal that the significantly enhanced emission centered at 600 nm can be attributed to more efficient absorption, closely associated with an additional 1 S 0 → 3 P 1 transition in the inorganic octahedron [In(Sb)Cl 6 ] 3− due to Sb 3+ doping. With its excellent optical performance, a white light emitting diode (WLED) has been successfully fabricated by coating the mixture of (MP) 3 InCl 6 •EtOH:15%Sb 3+ with blue phosphor BaMgAl 10 O 17 :Eu 2+ onto a UV LED chip. The WLED device exhibits perfect white light emission with regard to the International Commission on Illumination (CIE) coordinates of (0.36, 0.34). Significantly, the WLED device maintains a stable correlated color temperature (CCT) range of 4119−4393 K and CIE coordinates (x: 0.37− 0.34, y: 0.35−0.33) as the driven current varies from 20 to 200 mA, demonstrating outstanding stability across different power levels. This work not only presents a novel system for achieving remarkably enhanced luminescent performance and tuning emission bands in 0D metal halides but also represents a significant step toward achieving resistance to color drifting for stable WLEDs.

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Section: Introductionmentioning

confidence: 78%

Antimony-Triggered Tunable White Light Emission in Lead-Free Zero-Dimensional Indium Halide with Ultrastable CCT of White Light Emitting Diodes

Wu,

Zhen,

Zhang

2023

Inorg. Chem.

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“…Constructing low-dimensional metal halide hybrids (MHHs) seems an effective approach to enhance the RTP performance of organic phosphors. ,,− Due to the multiple Coulombic and hydrogen-bonding interactions between organic phosphors and metal halide polyhedra, − positively charged organic phosphors are fixed in a relatively rigid and compact structural environment that suppresses nonradiative transitions caused by thermal vibration and undesirable oxygen quencher. , Therefore, various host materials including crystalline metal–organic framework, amorphous polymers, ,, and supramolecular cages , have been employed to incorporate organic phosphors to enhance the performance of RTP. Although the detrimental effects from humidity and oxygen quencher could be physically shielded through the host–guest strategy, the thermal quenching effect is hardly overcome, especially for temperatures above 373 K, which most optoelectronic fields demand.…”

Section: Introductionmentioning

confidence: 99%

Long-Persistent High-Temperature Phosphorescence of Zero-Dimensional Metal Halide Hybrid for Temperature-Sensitive Anticounterfeiting

Xie,

Peng,

Qin

et al. 2024

ACS Appl. Nano Mater.

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Solid-state materials with long-persistence phosphorescence always suffer serious thermal quenching effect that greatly hinders their applications at high-temperature conditions (>373 K). Therefore, developing high-temperature phosphorescence (HTP) materials remains a great challenge. In this work, cytosine (Cyt) is hybridized with indium chloride into zero-dimensional (Cyt) 2 [InCl 5 • H 2 O] (CICH). A green afterglow up to 1.0 s is observed at room temperature for CICH but almost quenched at 448 K due to the serious thermal quenching effect. Upon removing the coordinated H 2 O molecules of CICH (denoted to CIC), CIC shows an excellent performance of HTP with a persistence time of 0.4 s even at 448 K. The greatly improved thermal resistance is attributed to the removal of coordinated H 2 O molecules, which leads to a reduced free volume of Cyt, thereby suppressing the molecular vibration and rotation. Additionally, the afterglow time of CICH can be facilely tailored through Sb 3+ doping due to efficient triplet energy transfer. At last, given the high thermal tolerance of CIC, a temperature-sensitive anticounterfeiting is successfully demonstrated.

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“…[1][2][3][4][5][6][7][8] Similar to halide perovskites, [9][10][11][12][13][14][15] the photophysical properties of MHHs are mainly determined by the metal and halide components, while the organic component mainly serves as a structural counterion. [16][17][18][19] To modulate the optical properties of MHHs, various strategies, such as adopting diverse organic cations [20][21][22][23] and doping metal ions, [24][25][26][27][28][29][30] have been utilized. Compared to inorganic ions with limited choice and coordinated environments, organic components offer more flexibility in structural manipulation and regulation of optical properties.…”

Section: Introductionmentioning

confidence: 99%

Efficient triplet energy transfer in a 0D metal halide hybrid with long persistence room temperature phosphorescence for time-resolved anti-counterfeiting

Li,

Wu,

Xiao

et al. 2023

Inorg. Chem. Front.

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Antimony doping to enhance luminescence of tin(iv)-based hybrid metal halides

Abstract: Exploration of Sn4+-based organic–inorganic metal halides and suggests an efficient lone-pair-containing cation doping route to enhance the luminescent performance.

Cited by 14 publications

References 45 publications

Antimony-Triggered Tunable White Light Emission in Lead-Free Zero-Dimensional Indium Halide with Ultrastable CCT of White Light Emitting Diodes

Antimony-Triggered Tunable White Light Emission in Lead-Free Zero-Dimensional Indium Halide with Ultrastable CCT of White Light Emitting Diodes

Long-Persistent High-Temperature Phosphorescence of Zero-Dimensional Metal Halide Hybrid for Temperature-Sensitive Anticounterfeiting

Efficient triplet energy transfer in a 0D metal halide hybrid with long persistence room temperature phosphorescence for time-resolved anti-counterfeiting

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