基于超分子有机凝胶的复合传感薄膜材料研究

Considering the fact that the structure of low molecular-mass organic gelators(LMOGs) can be cut and the sensing performance of semiconductor nanoparticles depend on its microstructure, firstly, a series of LMOGs can be designed and synthesized, taking the supramolecular organogel film of the LMOGs as template and artificial models of "biomineralization"process, a variety of light-emitting semiconductor micro-nano-materials can be prepared by transcription method, and ultimately the composite films can be applied to the sensing detection of amines. The project will focused on the effect of the LMOGs structure, the organic gel three-dimensional network density, film thickness and semiconductor nanoparticles micro-structure on the sensing performance of the composite film, summarizing its regularity, finally, the sensing mechanism can been proposed using a variety of photophysical techniques, and the general assembly theory of the highly sensitive film can been proposed. It is believed that the scientific research of the sensing performance of semiconductor nanoparticles stabled by the supramolecular organic gel will help establish design ideas of the composite sensing film materials, exploring the new field of sensing film materials. At the same time, the study of the project will certainly enrich gel materials contents, and promote the practical application of the gel materials.

利用小分子有机胶凝剂结构的可裁剪性，充分考虑半导体纳米粒子传感性能对其微结构的依赖性,设计、合成一系列结构参数递变的有机小分子，并以其凝胶薄膜为模板，人工模拟生物矿化过程，诱导转录制备多种微结构不同的发光半导体微纳米材料，最终将该复合薄膜应用于胺类化合物的传感检测。系统研究有机小分子胶凝剂结构、凝胶三维网络结构密度、薄膜厚度以及半导体微纳结构等因素对复合薄膜传感性能的影响及其规律性，结合各种光物理技术揭示薄膜传感机理，最终提出组装该类高灵敏复合薄膜的一般理论。相信通过深入研究超分子有机凝胶稳定半导体纳米粒子传感特性相关的科学问题，有助于确立复合传感薄膜材料设计思想，开拓传感薄膜材料研究新领域，同时本项研究必将丰富凝胶材料内容，推进凝胶材料的实际应用.

合成了一系列不同碳链长度连接臂的双胆固醇衍生物和含有荧光活性基团的单胆固醇衍生物作为有机小分子胶凝剂；以无机半导体、稀土化合物等作为发光材料，凝胶材料为薄膜基质共制备得到6种传感薄膜材料；对薄膜微观结构、表面组成、半导体晶型、光学性能等进行了表征；系统研究了薄膜在液相和气相中对胺类化合物的传感行为；详细考察了胶凝剂结构、薄膜处理方式、半导体种类及微纳结构等因素对复合薄膜传感性能的影响及其规律性；提出传感薄膜的传感机理及组装该类高灵敏复合薄膜的一般理论。该研究为复合传感薄膜材料设计思想的确立，传感薄膜材料研究新领域的开拓具有一定的指导意义。. 在基金支持下，获批中国发明专利2项，实用新型专利1项，1项国家发明专利正在实审阶段。发表研究论文11篇，其中SCI收录6篇；获得省级科技成果一等奖1项；培养硕士研究生3名（毕业2名）。