Towards large area surface functionalization with luminescent and magnetic lanthanoid complexes,Inorganic Chemistry Frontiers

当前位置： X-MOL 学术 › Inorg. Chem. Front. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Towards large area surface functionalization with luminescent and magnetic lanthanoid complexes
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2022-06-23 , DOI: 10.1039/d2qi00995a
Guillem Gabarró-Riera _{1,

2} , Jesús Jover _{2,

3} , Juan Rubio Zuazo _{4,

5} , Elena Bartolomé ₆ , E. Carolina Sañudo _{1,

2}

Affiliation

Homogeneous surface deposition of molecules over a large area of the substrate is difficult to achieve but extremely important for proposed applications of magnetic molecules in data storage, information processing or molecular spintronics. In this paper we report a simple method for large area surface functionalization with the aim of grafting complex molecules in an organized manner. A proof of concept is given by grafting the complexes [Ln₂(SYML)₃(H₂O)] (1 Ln = Eu(III), 2 Ln = Dy(III)) on the functionalized Si(100) and using a combination of techniques, including luminescence to track the process. We obtain a homogenous coverage of Si(100) wafers (from 0.5 cm × 0.5 cm to 1 cm × 1 cm) with complexes 1 and 2. Time of flight secondary ion mass spectroscopy (ToF-SIMS) confirms the presence of the expected molecular fragments on the surface. Grazing incidence X-Ray diffraction (GIXRD) measurements show preferred orientations and ordered domains of the molecules. The magnetic properties and anisotropy of the monolayer of grafted molecules are examined by X-Ray magnetic circular dichroism (XMCD), showing a fraction of molecules with a preferred orientation of their easy axis of magnetization at 30° with respect to the surface-normal.

中文翻译：

用发光和磁性镧系元素配合物实现大面积表面功能化

分子在大面积衬底上的均匀表面沉积难以实现，但对于磁性分子在数据存储、信息处理或分子自旋电子学中的拟议应用极为重要。在本文中，我们报告了一种用于大面积表面功能化的简单方法，旨在以有组织的方式接枝复杂分子。通过嫁接配合物 [Ln ₂ (SYML) ₃ (H ₂ O)] ( 1 Ln = Eu( III ), 2 Ln = Dy( III)) 在功能化的 Si(100) 上并使用多种技术，包括发光来跟踪过程。我们获得了具有配合物1和2的 Si(100) 晶片（从 0.5 cm × 0.5 cm 到 1 cm × 1 cm）的均匀覆盖。飞行时间二次离子质谱 (ToF-SIMS) 证实了表面上存在预期的分子片段。掠入射 X 射线衍射 (GIXRD) 测量显示分子的优选取向和有序域。接枝分子单层的磁性和各向异性通过 X 射线磁圆二色性 (XMCD) 检测，显示一部分分子的易磁化轴相对于表面法线在 30° 处具有优选取向。

更新日期：2022-06-23

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11