Pressure Engineering Toward Harvesting the Bright Deep-Blue-Light Emission in Y-based Metal-Organic Frameworks

Yixuan Wang; Chuang Liu; Xue YongXinyi YangJingkun YuSiyu LuFuquan BaiShiping WangKai WangZhaodong LiuBingtao FengXuyuan HouHao LiuBanglin ChenQianrong FangBo Zou

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Pressure Engineering Toward Harvesting the Bright Deep-Blue-Light Emission in Y-based Metal-Organic Frameworks

机译：Pressure Engineering Toward Harvesting the Bright Deep-Blue-Light Emission in Y-based Metal-Organic Frameworks

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The emergence of metal-organic frameworks (MOFs) provides a new platform of low-cost and color-saturated blue light-emitting diodes ideal for display and solid-state lighting applications. However, numerous established MOFs still exhibit weak deep-blue-light emission (<450 nm) owing to low energy/charge transfer efficiency. Here a pressure-treated strategy to greatly enhance photoluminescence performance of deep-blue lightemitting Y(BTC)(H_2O)_6 (H3BTC: benzene-1,3,5-tricarboxylic acid) is reported. Pressure-treated Y(BTC)(H_2O)_6 exhibits a bright emission at 409 nm with a photoluminescence quantum yield from the initial 2.8% increasing to 75.0%. The hydrogen bonding cooperativity effect increases hydrogen bond binding energy after pressure treatment and thus the planarization structure is locked. The increased electronic transition diversity and oscillator strength originating from the planarization structure are highly responsible for boosting metal-to-ligand charge transfer. The findings in this study provide significant insights into the underlying mechanism of the structure-property relationship in Y(BTC)(H_2O)_6 and offer a promising strategy to harvest deep-blue-emitting MOFs materials.

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《Advanced functional materials》 |2023年第21期|2300109.1-2300109.8|共8页
作者
Yixuan Wang; Chuang Liu; Xue YongXinyi YangJingkun YuSiyu LuFuquan BaiShiping WangKai WangZhaodong LiuBingtao FengXuyuan HouHao LiuBanglin ChenQianrong FangBo Zou;
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State Key Laboratory of Superhard Materials Synergetic Extreme Condition High-Pressure Science Center College of Physics Jilin University Changchun 130012, China;

Department of Chemistry University of Sheffield Sheffield S3 7HF, UK;

Green Catalysis Center College of Chemistry Zhengzhou University Zhengzhou 450001, ChinaInstitute of Theoretical Chemistry College of Chemistry Jilin University Changchun 130012, ChinaDepartment of Chemistry University of Texas at San Antonio San Antonio, Texas 78249-0698, USAState Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun 130012, China;

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deep-blue-light emission enhancements; hydrogen bonding cooperativity effects; metal-to-ligand charge-transfers; pressure-treated engineering; Y-based metal-organic frameworks;

Pressure Engineering Toward Harvesting the Bright Deep-Blue-Light Emission in Y-based Metal-Organic Frameworks

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