空位对空位排序双矿衍生物发光和水反应性质的空位效应
Zeping Wang1,2,3, Dandan Huang1,4, Yi Liu1,4
1State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter, The Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
Angewandte Chemie (International ed. in English)
|August 13, 2024
概括
研究人员量化了空位排序的双矿衍生物 (VDPDs) 中的空位体积,并发现它影响光发光和湿度稳定性. 这项工作促进了VDPD材料设计,用于诸如防伪等应用.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 纳米技术纳米技术
背景情况:
- 空位排序的矿是光电子设备的有希望的混合金属化物.
- 了解这些材料中的结构-财产关系,特别是关于空缺职位的关系,至关重要,但未被充分探索.
- 现有的研究往往集中在A2M(IV) X6□型双矿上,使其他结构受到研究较少.
研究的目的:
- 通过使用康诺利表面,首次量化计算空位排序的双矿衍生物 (VDPDs) 中的空位量 (V□).
- 为了确定空隙分数,结构性质,光发光,和湿度稳定性之间的关系在0-D[N(基) ]2Sb□Cl5□'-类型的VDPDs.
- 探索新的现象,如气体吸附和VDPDs的湿度响应行为.
主要方法:
- 使用康诺利表面方法量化计算空置体积 (V□).
- 合成和特征零维 (0-D) [N(基) ]2Sb□Cl5□'-类空位顺序双矿衍生物 (VDPDs).
- 研究了结构转变,光发光特性,气体吸附行为 (水蒸气) 和湿度稳定性.
主要成果:
- 在0-D VDPD中建立了光发光量子产量和V□之间的反向关系.
- 报告了从A2SbCl5到A3Sb2Cl9.9的结构转变的第一次观察.
- 在VDPD中发现了一种新的"门开放"气体吸附现象,由"S"形水蒸气吸附异温体证明,表明了阴子控制的行为.
- 展示了一种混合的策略,以提高湿度稳定性.
- 观察到可控制的水响应行为和"开启-关闭"发光开关.
结论:
- 对V□的定量分析提供了对VDPD中空置物业关系的关键见解.
- 0-D VDPD 具有独特的结构和响应特性,包括阴离子控制的水吸附和发光开关.
- 这些发现突显了VDPDs的潜力,特别是A2M(III)□X5□'-类型的材料,用于先进的应用,如多层次信息防伪等.
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