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Halogen-modulated zinc-based 0D hybrids for high-efficiency blue light emission.

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Title: Halogen-modulated zinc-based 0D hybrids for high-efficiency blue light emission.
Authors: Zhang, Cheng-Fang1 (AUTHOR), Zhong, Wen-He1 (AUTHOR), Ma, Peng-Cheng1 (AUTHOR), Zhao, Jia-Jia1 (AUTHOR) zhaojiajia@just.edu.cn, Cheng, Ting1,2 (AUTHOR) wnchengting@sina.com, Chen, Li-Zhuang1 (AUTHOR) clz1977@sina.com
Source: CrystEngComm. 5/4/2026, Vol. 28 Issue 17, p2845-2850. 6p.
Subjects: Zinc halides, Photoluminescence, Condensed matter, Photon emission, Optoelectronics, Light emitting diodes, Coordination compounds
Abstract: This paper reports the facile synthesis of zero-dimensional (0D) organic–inorganic hybrid zinc halides: 2ABZnCl2, 2ABZnBr2, and 2ABZnI2 (where 2AB is 2-aminobenzamide). A halogen-modulation strategy was employed to optimize their optoelectronic properties. Notably, 2ABZnI2 achieves a peak photoluminescence quantum yield (PLQY) of 40.14%, a 6-fold increase over the Br-based derivative (6.05%) and a 13-fold increase over the Cl-based derivative (2.82%). Structural analysis reveals that longer Zn⋯Zn distances minimize exciton migration and suppress non-radiative losses. The iodine derivative also shows high color purity blue emission and excellent environmental stability. These results, along with successful prototype LED fabrication, demonstrate the potential of these lead-free 0D hybrids as high-performance, eco-friendly candidates for next-generation lighting and displays. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:This paper reports the facile synthesis of zero-dimensional (0D) organic–inorganic hybrid zinc halides: 2ABZnCl2, 2ABZnBr2, and 2ABZnI2 (where 2AB is 2-aminobenzamide). A halogen-modulation strategy was employed to optimize their optoelectronic properties. Notably, 2ABZnI2 achieves a peak photoluminescence quantum yield (PLQY) of 40.14%, a 6-fold increase over the Br-based derivative (6.05%) and a 13-fold increase over the Cl-based derivative (2.82%). Structural analysis reveals that longer Zn⋯Zn distances minimize exciton migration and suppress non-radiative losses. The iodine derivative also shows high color purity blue emission and excellent environmental stability. These results, along with successful prototype LED fabrication, demonstrate the potential of these lead-free 0D hybrids as high-performance, eco-friendly candidates for next-generation lighting and displays. [ABSTRACT FROM AUTHOR]
ISSN:14668033
DOI:10.1039/d6ce00125d