Centimeter-Sized Single Crystals of Tetrahedral Manganese (II) Halide Hybrids for Wide-Color Gamut Backlighting Displays

Xiaohua Cheng; Xuerui Chang; Yufan Lin; Longyun Lv; Li Cong; Yuxin Jia; Jun Yin; Juan Li; Bin Bin Cui

doi:10.1002/smll.202307216

Centimeter-Sized Single Crystals of Tetrahedral Manganese (II) Halide Hybrids for Wide-Color Gamut Backlighting Displays

Xiaohua Cheng, Xuerui Chang, Yufan Lin, Longyun Lv, Li Cong, Yuxin Jia, Jun Yin, Juan Li^*, Bin Bin Cui^*

^*Corresponding author for this work

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

16 Citations (Scopus)

Abstract

Phosphors with narrow-band green emissions and high photoluminescent quantum efficiency (PLQY) are significantly required for backlighting displays with wider color gamut. In this work, two centimeter-sized manganese (II) halide single crystals TMG₂MnCl₄ and TMG₂MnBr₄ (TMG = 1,1,3,3-tetramethylguanidine) are synthesized, exhibiting bright narrow-band green emissions with high PLQYs up to 62% and 90%, respectively. The narrow-band green light emission is located at 520 nm with a full-width at half-maximum (FWHM) of only 57 nm. The photoluminescence mechanisms of two single crystals are elaborated. Two white-light-emitting diodes for backlighting displays (BD-WLEDs) based on them are fabricated, exhibiting the widest color gamut of 122% National Television Standards Committee (NTSC), and a luminous efficacy reached ≈93 lm W⁻¹ with excellent luminescence stability at high temperatures. These properties indicate the potential applications of tetrahedral manganese (II) hybrids in wide-color gamut backlighting displays.

Original language	English
Article number	2307216
Journal	Small
Volume	20
Issue number	18
DOIs	http://doi.org/10.1002/smll.202307216
Publication status	Published - 2 May 2024
Externally published	Yes

Keywords

backlighting displays
narrow-band green emissions
tetrahedral manganese (II)
thermal stability
wide-color gamut

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10.1002/smll.202307216

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@article{59104c89a20b4123a66165d9ec7d6bf3,

title = "Centimeter-Sized Single Crystals of Tetrahedral Manganese (II) Halide Hybrids for Wide-Color Gamut Backlighting Displays",

abstract = "Phosphors with narrow-band green emissions and high photoluminescent quantum efficiency (PLQY) are significantly required for backlighting displays with wider color gamut. In this work, two centimeter-sized manganese (II) halide single crystals TMG2MnCl4 and TMG2MnBr4 (TMG = 1,1,3,3-tetramethylguanidine) are synthesized, exhibiting bright narrow-band green emissions with high PLQYs up to 62\% and 90\%, respectively. The narrow-band green light emission is located at 520 nm with a full-width at half-maximum (FWHM) of only 57 nm. The photoluminescence mechanisms of two single crystals are elaborated. Two white-light-emitting diodes for backlighting displays (BD-WLEDs) based on them are fabricated, exhibiting the widest color gamut of 122\% National Television Standards Committee (NTSC), and a luminous efficacy reached ≈93 lm W−1 with excellent luminescence stability at high temperatures. These properties indicate the potential applications of tetrahedral manganese (II) hybrids in wide-color gamut backlighting displays.",

keywords = "backlighting displays, narrow-band green emissions, tetrahedral manganese (II), thermal stability, wide-color gamut",

author = "Xiaohua Cheng and Xuerui Chang and Yufan Lin and Longyun Lv and Li Cong and Yuxin Jia and Jun Yin and Juan Li and Cui, \{Bin Bin\}",

note = "Publisher Copyright: {\textcopyright} 2023 Wiley-VCH GmbH.",

year = "2024",

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day = "2",

doi = "10.1002/smll.202307216",

language = "English",

volume = "20",

journal = "Small",

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TY - JOUR

T1 - Centimeter-Sized Single Crystals of Tetrahedral Manganese (II) Halide Hybrids for Wide-Color Gamut Backlighting Displays

AU - Cheng, Xiaohua

AU - Chang, Xuerui

AU - Lin, Yufan

AU - Lv, Longyun

AU - Cong, Li

AU - Jia, Yuxin

AU - Yin, Jun

AU - Li, Juan

AU - Cui, Bin Bin

PY - 2024/5/2

Y1 - 2024/5/2

N2 - Phosphors with narrow-band green emissions and high photoluminescent quantum efficiency (PLQY) are significantly required for backlighting displays with wider color gamut. In this work, two centimeter-sized manganese (II) halide single crystals TMG2MnCl4 and TMG2MnBr4 (TMG = 1,1,3,3-tetramethylguanidine) are synthesized, exhibiting bright narrow-band green emissions with high PLQYs up to 62% and 90%, respectively. The narrow-band green light emission is located at 520 nm with a full-width at half-maximum (FWHM) of only 57 nm. The photoluminescence mechanisms of two single crystals are elaborated. Two white-light-emitting diodes for backlighting displays (BD-WLEDs) based on them are fabricated, exhibiting the widest color gamut of 122% National Television Standards Committee (NTSC), and a luminous efficacy reached ≈93 lm W−1 with excellent luminescence stability at high temperatures. These properties indicate the potential applications of tetrahedral manganese (II) hybrids in wide-color gamut backlighting displays.

AB - Phosphors with narrow-band green emissions and high photoluminescent quantum efficiency (PLQY) are significantly required for backlighting displays with wider color gamut. In this work, two centimeter-sized manganese (II) halide single crystals TMG2MnCl4 and TMG2MnBr4 (TMG = 1,1,3,3-tetramethylguanidine) are synthesized, exhibiting bright narrow-band green emissions with high PLQYs up to 62% and 90%, respectively. The narrow-band green light emission is located at 520 nm with a full-width at half-maximum (FWHM) of only 57 nm. The photoluminescence mechanisms of two single crystals are elaborated. Two white-light-emitting diodes for backlighting displays (BD-WLEDs) based on them are fabricated, exhibiting the widest color gamut of 122% National Television Standards Committee (NTSC), and a luminous efficacy reached ≈93 lm W−1 with excellent luminescence stability at high temperatures. These properties indicate the potential applications of tetrahedral manganese (II) hybrids in wide-color gamut backlighting displays.

KW - backlighting displays

KW - narrow-band green emissions

KW - tetrahedral manganese (II)

KW - thermal stability

KW - wide-color gamut

UR - http://www.scopus.com/pages/publications/85179318162

U2 - 10.1002/smll.202307216

DO - 10.1002/smll.202307216

M3 - Article

AN - SCOPUS:85179318162

SN - 1613-6810

VL - 20

JO - Small

JF - Small

IS - 18

M1 - 2307216

ER -

Centimeter-Sized Single Crystals of Tetrahedral Manganese (II) Halide Hybrids for Wide-Color Gamut Backlighting Displays

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Keywords

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