基于金属纳米粒子 / II-VI族低维半导体复合纳米结构的紫外光探测器的性能调控与机理研究

项目名称： 基于金属纳米粒子 / II-VI族低维半导体复合纳米结构的紫外光探测器的性能调控与机理研究

项目编号： No.51471051

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 一般工业技术

项目作者： 方晓生

作者单位： 复旦大学

项目金额： 85万元

中文摘要： 本研究拟在控制生长II-VI族低维半导体（ZnS，ZnO，ZnTe，CdTe和CdS为主）纳米结构及其异质/分级结构（ZnS/ZnO、ZnS/ZnSe和ZnS/CdS等）的基础上，发展有效普适方法，复合不同大小、不同形状、不同阵列密度的多种金属纳米粒子（Au、Ag 和Pt），探索简单适用的构筑方法/技术（如界面自组装等构筑技术），构筑复合纳米结构的紫外光探测器，深入研究其光电器件性能和结构形貌、微结构等的相互内在构效关系，阐明内在物理机制，实现紫外光探测器制备的低成本、高性能和多功能化。本项目通过低维纳米结构的控制生长、复合结构设计、内在物理机制与性能研究，揭示该纳米制造工艺的物理机制及其调控规律，对低维纳米结构的应用研究有重要意义，为下一代纳米器件的研制提供科学依据，奠定理论和实验基础。

中文关键词： 复合材料；纳米复合材料；颗粒增强

英文摘要： The proposed project aims to the synthesis of low-dimensional Group II-VI semiconductors (mainly focused on ZnS，ZnO，ZnTe，CdTe and CdS) nanostructures and their heterostructures/hierarchical nanostructures (mainly focused on ZnS/ZnO、ZnS/ZnSe and ZnS/CdS), the growth of which will be controlled and then based on for subsequent research, and combined with various metal nanoparticles (mainly focused on Au、Ag and Pt) with controlled sizes, shapes, and array density. It involves observing the morphologies and spectral characteristics of the fabricated nanostructures, and further on, qualitatively investigating the inherent relationships of performances and morphologies of the photoelectric devices, which are produced based on these particular types of nanostructures. The research work will be specifically set to develop an efficient and reliable way to construct the high performances ultraviolet (UV) photodetectors based on metal nanoparticles- Group II-VI semiconductor nanocomposites. And, consequently, the physical mechanism of the caused performances, relating to photoelectric devices and functional surfaces, can be expounded. Surface functionalization, in accordance with the particular material involved, will be developed, which complies with the ultimate aim of accomplishing high-performance heterogeneous composites. Through the research work of this project, it is expected that the investigation and interpretation of microscopic mechanism and morphological development of the nanocomposite shall be achieved. The concerned fields include multi-functionalization of the surfaces of photoelectric devices and systematic research of synthesis-performance-application, which will provide references in material processing and theoretical analysis for the advancement of new-generation nanodevices.

英文关键词： composite materials;hybrids;nanostructure composites;enhanced property