Ultrahigh PLQY Lead‐Free Organic–Inorganic Hybrid Zirconium‐Based Perovskites in Anticounterfeiting Applications
Source abstract
Abstract
Abstract Organic hybrid halide perovskite, which has excellent characteristics of low cost, nontoxicity, and high recognition, has attracted extensive attention in optical anticounterfeiting applications. In this paper, (TEA)2ZrCl6 (TEA = tetraethylammonium) single crystals (SCs) are synthesized by an easy‐to‐operate hydrothermal method, which exhibits excitation wavelength‐dependent emission at 254 and 365 nm, respectively. Moreover, the photoluminescence quantum yield of (TEA)2ZrCl6 SCs achieves 84.7%, with the introduction of Sb3+ ions. (TEA)2ZrCl6 and doped (TEA)2ZrCl6 patterns can be recognized with excitation by different wavelengths. In addition, as‐prepared (TEA)2ZrCl6 crystals show interesting radioluminescence for another anticounterfeiting model with the light yield of 17 709 photons per MeV. The experimental results indicate the novel (TEA)2ZrCl6 SCs have a huge potential for X‐ray imaging and anticounterfeiting.
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Research context
OpenAlex topics: Perovskite Materials and Applications · Luminescence Properties of Advanced Materials · 2D Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Optoelectronic Engineering Chongqing University of Posts and Telecommunications Chongqing 400065 P. R. China
Key Laboratory of Optoelectronic Technology and Systems (Ministry of Education) College of Optoelectronic Engineering Chongqing University Chongqing 400044 P. R. China
School of Material Science and Engineering Zhengzhou University Zhengzhou 450001 P. R. China
College of Materials Science and Engineering Sichuan University Chengdu 610065 P. R. China
State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology School of Microelectronics Xidian University Xi'an 710071 P. R. China
Funding
National Key Research and Development Program of China · National Natural Science Foundation of China · Natural Science Foundation of Chongqing
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