量子点功能化碳纳米管的辐射响应机制及柔性探测器构效关系研究

The rapid development of nuclear power, nuclear technology, aerospace engineering and the initiation of some national scientific projects have put forward new, higher and diversified demands for radiation detectors. This project comes from the actual demand of the flexible radiation detector and proposes a new radiation detection method basing on quantum dot functionalized carbon nanotubes (CNTs-QDs). CNTs-QDs radiation sensitive materials, "sandwich" radiation detection units and flexible nuclear radiation detector are prepared successively and tested. The radiation response mechanism of CNTs-QDs and structure-activity relationship of flexible detector are studied in detail. Through optimizing the structure and performance, new radiation detection materials and devices basing on CNTs-QDs are developed. The implementation of the project will reveal the radiation response mechanism of CNTs-QDs , get the structure-activity relationship of flexible detector basing on CNTs-QDs, obtain the radiation sensitive material and a flexible detector basing on CNTs-QDs, which is conducive to the application of nanomaterial in radiation detection field and help to promote the development of new radiation detectors.

核能、核技术、航天工程的快速发展和一些国家重大科学计划的实施对辐射探测器提出了新的、更高的、多样化的要求。本项目从柔性核辐射探测器实际需求出发，以辐射-物质相互作用和载流子输运理论为基础，提出一种以量子点功能化碳纳米管（CNTs-QDs）为核心的辐射探测新方法，通过制备CNTs-QDs辐射敏感材料、搭建“三明治”结构辐射探测单元、构筑柔性核辐射探测器并进行微观结构表征和性能测试分析，重点研究CNTs-QDs的辐射响应机制和新型柔性器件的构效关系，优化结构性能，发展基于CNTs-QDs的辐射探测新材料和新器件。本项目的顺利实施，将揭示CNTs-QDs的辐射响应机制，掌握基于CNTs-QDs的柔性器件的构效关系，为类似辐射探测器研发提供参考；获得基于CNTs-QDs的辐射敏感材料及柔性探测器（原型），在便携式装备等方面有潜在应用；有利于推动纳米材料在辐射探测领域的应用和新型辐射探测器件的发展。