Rational design and synthesis of narrow-band emitting Eu(II)-based hybrid halides via alkyl thermal cleavage

Abstract Organic-inorganic hybrid metal halides have emerged as pivotal luminescent materials for versatile photonic applications. Nevertheless, prevailing chemical design and synthetic strategies of hybrid luminescent halides are constrained by limited compositional engineering and suboptimal phase...

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Main Authors: Liang Li, Jiance Jin, Kai Han, Yuzhen Wang, Zhiguo Xia
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-025-62748-0
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author Liang Li
Jiance Jin
Kai Han
Yuzhen Wang
Zhiguo Xia
author_facet Liang Li
Jiance Jin
Kai Han
Yuzhen Wang
Zhiguo Xia
author_sort Liang Li
collection DOAJ
description Abstract Organic-inorganic hybrid metal halides have emerged as pivotal luminescent materials for versatile photonic applications. Nevertheless, prevailing chemical design and synthetic strategies of hybrid luminescent halides are constrained by limited compositional engineering and suboptimal phase crystallization. Herein, we propose a universal alkyl thermal cleavage route to design and grow Eu(II)-based hybrid halide crystals. By modulating the alkyl chain length of 25 organic cations, all the as-synthesized halides achieve narrow-band emission with full-width-at-half-maximum (34–52 nm) and tunable colors in the region of blue-cyan-green owing to the highly efficient 5d-4f transition of Eu(II). We further clarify that the tunable emissions are dependent on the combined effect of configuration, average radius, and distortion index of the Eu-X (X = Cl, Br, I) polyhedra. This work provides fundamental insights into the design principle of narrow-band emitting Eu(II)-based hybrid halides and expands the family of hybrid halides as next-generation luminescence materials for emerging photonic applications.
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publishDate 2025-08-01
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spelling doaj-art-3ed360bed93f47c8b7e690e9c61c93c72025-08-20T03:46:28ZengNature PortfolioNature Communications2041-17232025-08-0116111010.1038/s41467-025-62748-0Rational design and synthesis of narrow-band emitting Eu(II)-based hybrid halides via alkyl thermal cleavageLiang Li0Jiance Jin1Kai Han2Yuzhen Wang3Zhiguo Xia4State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Centre of Special Optical Fiber Materials and Devices, School of Physics and Optoelectronics, South China University of Technology, South China University of TechnologySchool of Materials Science and Engineering, South China University of Technology, GuangzhouState Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Centre of Special Optical Fiber Materials and Devices, School of Physics and Optoelectronics, South China University of Technology, South China University of TechnologyState Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Centre of Special Optical Fiber Materials and Devices, School of Physics and Optoelectronics, South China University of Technology, South China University of TechnologyState Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Centre of Special Optical Fiber Materials and Devices, School of Physics and Optoelectronics, South China University of Technology, South China University of TechnologyAbstract Organic-inorganic hybrid metal halides have emerged as pivotal luminescent materials for versatile photonic applications. Nevertheless, prevailing chemical design and synthetic strategies of hybrid luminescent halides are constrained by limited compositional engineering and suboptimal phase crystallization. Herein, we propose a universal alkyl thermal cleavage route to design and grow Eu(II)-based hybrid halide crystals. By modulating the alkyl chain length of 25 organic cations, all the as-synthesized halides achieve narrow-band emission with full-width-at-half-maximum (34–52 nm) and tunable colors in the region of blue-cyan-green owing to the highly efficient 5d-4f transition of Eu(II). We further clarify that the tunable emissions are dependent on the combined effect of configuration, average radius, and distortion index of the Eu-X (X = Cl, Br, I) polyhedra. This work provides fundamental insights into the design principle of narrow-band emitting Eu(II)-based hybrid halides and expands the family of hybrid halides as next-generation luminescence materials for emerging photonic applications.https://doi.org/10.1038/s41467-025-62748-0
spellingShingle Liang Li
Jiance Jin
Kai Han
Yuzhen Wang
Zhiguo Xia
Rational design and synthesis of narrow-band emitting Eu(II)-based hybrid halides via alkyl thermal cleavage
Nature Communications
title Rational design and synthesis of narrow-band emitting Eu(II)-based hybrid halides via alkyl thermal cleavage
title_full Rational design and synthesis of narrow-band emitting Eu(II)-based hybrid halides via alkyl thermal cleavage
title_fullStr Rational design and synthesis of narrow-band emitting Eu(II)-based hybrid halides via alkyl thermal cleavage
title_full_unstemmed Rational design and synthesis of narrow-band emitting Eu(II)-based hybrid halides via alkyl thermal cleavage
title_short Rational design and synthesis of narrow-band emitting Eu(II)-based hybrid halides via alkyl thermal cleavage
title_sort rational design and synthesis of narrow band emitting eu ii based hybrid halides via alkyl thermal cleavage
url https://doi.org/10.1038/s41467-025-62748-0
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AT jiancejin rationaldesignandsynthesisofnarrowbandemittingeuiibasedhybridhalidesviaalkylthermalcleavage
AT kaihan rationaldesignandsynthesisofnarrowbandemittingeuiibasedhybridhalidesviaalkylthermalcleavage
AT yuzhenwang rationaldesignandsynthesisofnarrowbandemittingeuiibasedhybridhalidesviaalkylthermalcleavage
AT zhiguoxia rationaldesignandsynthesisofnarrowbandemittingeuiibasedhybridhalidesviaalkylthermalcleavage