伪化阳离子驱动结构调节在扭曲的四面体中(II) 混合物向可调节的绿色-红色排放方向
Shuai Zhang1, Kai Han1, Zhiguo Xia1
1State 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, Guangzhou, 510641, China.
合成了具有四面体协调的(II) 伪化混合物,表现出可调节的红移发光. 发射性质与Mn{\displaystyle Mn{\text{II}} } 的离子对相关性和双极时刻相关.
科学领域:
- 材料科学 材料科学 材料科学
- 无机化学 无机化学 有机化学
- 光子材料的光子材料
背景情况:
- 基于的化物是有前途的发光材料.
- 四面体Mn (II) 复合体通常发出绿色光,而八面体则发出红色光.
研究的目的:
- 设计和合成新的四面体Mn (II) 伪化物混合物.
- 为了研究化物被伪化物替代对发光特性的影响.
主要方法:
- 合成 (RPh3P) 2MnBrxNCS4-x杂交物 (R=,,甲基;x=1-3). 在这种情况下,
- 结构和光发光特性的表征.
主要成果:
- 合成的混合杂交体呈现出扭曲的[MnBrxNCS4-x]四面体,具有高双极时刻.
- 与发射绿色的A2MnBr4 (512 nm) 相比,排放红移到549-613nm.
- 光发光量子收益率 (PLQY) 与Mn-Mn距离相关.
结论:
- 双极时刻在确定Mn(II) 混合排放特性方面发挥着至关重要的作用.
- 这项工作扩大了发光 Mn(II) 伪化物混合体的家族.
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