Supramolecular nanomaterials containing phosphorescent transition metal clusters

含有磷光过渡金属簇的超分子纳米材料

• 批准号: 407256071
• 负责人: Professorin Dr. Sabine Laschat
• 金额: --
• 依托单位: Equipe Chimie du Solide et Matériaux (CSM)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/407256071?language=en
• 关键词: Supramolecular; nanomaterials; containing; phosphorescent; transition

The SNAPSTER project aims to tackle key challenges in the field of energy conversion for lighting and optoelectronics. Rare earth oxides (REO) are currently used in these fields and are nowadays considered by EU as strategic minerals for high technology applications like electric vehicles or energy efficient lighting. As the main natural resources of REO are located outside Europe, there is a real need to develop REO free emissive materials to guarantee energetic independency.The multidisciplinary SNAPSTER project proposes a new alternative to REO containing emissive materials. SNAPSTER aims to develop new phosphorescent hybrid nanomaterials and introduce them in optoelectronic devices to evaluate their potential in terms of applicative prospects. On one hand, An[M6Qi8Xa6] (A = alkali, Q = chalcogen/halogen, X = halogen, M = Mo, Re) metal cluster compounds, obtained by high temperature synthesis, are very attractive for light emitting devices: they are highly luminescent in the red NIR and are very robust in contrast to organic dyes which suffer from photochemical, thermal or oxidative decomposition. On the other hand, molecular self-assembling is a promising way to generate nanostructured hybrid materials where functionalities are given by inorganic moieties while the structuration is mainly directed by the organic counter-part. In that way, columnar liquid crystals (LCs) are of great interest for the design of smart materials: they are easy to process, show self-organizing and structural defects self-healing abilities as well as high charge carrier mobility. Yet, one of the main challenge to overcome in hybrid materials is to prevent phase segregation between the organic and inorganic moieties. The SNAPSTER project aims to introduce metal clusters in columnar LCs by taking advantage of the ability of LC crown ether derivatives to complex the alkali ions contained in the metal cluster compounds. The convergent synthesis of these hybrid materials via coordination chemistry will give a rapid access to a library of related materials for investigation of structure-property relationships and charge transport evaluation. SNAPSTER is a multidisciplinary German-French project joining 3 research teams P1 – P3 with complementary skills in solid state and organic chemistry, hybrid materials, LC, physics and electronics. P1 and P3 have a long term ongoing collaboration, supervising jointly PhD students working on projects involving chemistry and electronic. P2 who possesses a complementary expertise in the field of organic liquid crystals containing ionic species and crown ether derivatives is now involved in a bilateral DAAD/PHC Procope program with P1 from which, first SNAPSTER proof of concept results have been published in Chem Commun in 2016. This unique German-French consortium will provide complementary training to Master,PhD students and Postdocs via secondments in the partner labs and produce innovative research with a high international impact.

SNAPSTER项目旨在解决照明和光电子能源转换领域的关键挑战。稀土氧化物（REO）目前用于这些领域，目前被欧盟视为电动汽车或节能照明等高科技应用的战略矿物。由于REO的主要自然资源位于欧洲以外，因此真实的需要开发不含REO的发射材料以保证能量独立性。多学科SNAPSTER项目提出了一种新的含REO发射材料的替代品。SNAPSTER旨在开发新的磷光杂化纳米材料，并将其引入光电器件，以评估其应用前景。一方面，通过高温合成获得的An[M6 Q18 Xa 6]（A =碱金属，Q =硫族元素/卤素，X =卤素，M = Mo，Re）金属簇合物对于发光器件是非常有吸引力的：它们在红色NIR中是高度发光的，并且与遭受光化学、热或氧化分解的有机染料相比是非常稳健的。另一方面，分子自组装是一种很有前途的方法来产生纳米结构的杂化材料，其中功能性由无机部分给出，而结构化主要由有机对应部分指导。因此，柱状液晶（LC）对于智能材料的设计具有极大的兴趣：它们易于加工，显示出自组织和结构缺陷自修复能力以及高电荷载流子迁移率。然而，在杂化材料中要克服的主要挑战之一是防止有机和无机部分之间的相分离。SNAPSTER项目旨在通过利用LC冠醚衍生物络合金属簇合物中所含碱离子的能力，在柱状LC中引入金属簇合物。通过配位化学的聚合合成这些杂化材料将提供一个快速访问相关材料的库，用于结构-性能关系的调查和电荷传输评估。SNAPSTER是一个多学科的德法项目，加入了3个研究团队P1 - P3，在固态和有机化学，混合材料，LC，物理和电子学方面具有互补的技能。P1和P3有长期持续的合作，共同监督博士生从事涉及化学和电子的项目。P2在含有离子物质和冠醚衍生物的有机液晶领域拥有互补的专业知识，现在与P1一起参与双边DAAD/PHC Procope计划，其中第一个SNAPSTER概念验证结果已于2016年在Chem Commun上发表。这个独特的德法联盟将通过在合作实验室借调为硕士，博士生和博士后提供补充培训，并产生具有高度国际影响力的创新研究。