基于异质结界面电荷分离的高响应紫外光探测器件制备及性能研究

项目名称： 基于异质结界面电荷分离的高响应紫外光探测器件制备及性能研究

项目编号： No.61205040

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 信息四处

项目作者： 刘春波

作者单位： 吉林师范大学

项目金额： 28万元

中文摘要： 紫外光探测器在军事、医药、环境及火灾监测等领域有着重要的应用，是一类军民两用型器件。基于异质结界面电荷分离的有机紫外光探测器是近几年发展起来的一个新兴热门研究领域。与无机紫外探测器相比，具有材料来源广、工艺简单、成本低及可制备成大面积器件等优点。本课题集中导电玻璃衬底、有机小分子材料、物理气相沉积技术和异质结型器件结构的优点，设计并制备高电流响应且稳定性好有机紫外光探测器件。选择具有较高电子迁移率的有机小分子和铜配合物新材料作为受体，采用异质结型器件结构制备紫外光探测器件；运用先进的表征手段，阐述材料分子结构、光物理和电化学性质、载流子传输能力、薄膜形貌、热稳定性与器件紫外光探测性能之间的构效关系；将有机薄膜器件中的缓冲层引入到紫外光探测器件中，提高器件的使用寿命。本项目的研究将为有机紫外光探测器件的实际应用提供理论依据和实验基础。

中文关键词： Cu(I)配合物；有机紫外光探测器；响应度；缓冲层；

英文摘要： Ultraviolet (UV) photodetector (PD) is a kind of dual-purpose use of military facilities which has important applications in military affairs, medicine, environment and fire sensing. Organic ultraviolet detector (OUV-PD) based on heterojunction interface dissociation has been a new active research field in recent years. Compared to UV-PD based on inorganic materials, OUV-PD exhibits many advantages such as abundant resource, ease fabrication, low cost and large area, and so on. The aim of this project is to utilize low cost ITO glass substrates, organic small molecular materials, physical vapour deposition technique and heterojunction device structure to design and fabricate OUV-PDs which possess high photocurrent response and excellent stability. We will select novel organic small molecular materials and Cu(I) complexes as acceptors to fabricate OUV-PD by using heterojuction device structure. And also we will explore the relationship between the chemical structures, photophysical and electrochemical properties, charge transport abilities, thermal stabilities and film morphology of materials and the performance of OUV-PD by using advanced characterizing techniques. In addition, we will introduce the buffer layer into OUV-PD to enhance the device stability. Our investigation will provide theoretical evidence and

英文关键词： copper(I) complex；organic ultraviolet photodetector；response；buffer layer；