SiO2基宽光谱减反层/超疏水石墨烯功能协同透明导电薄膜

项目名称： SiO2基宽光谱减反层/超疏水石墨烯功能协同透明导电薄膜

项目编号： No.61205177

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： 李德增

作者单位： 中国科学院上海硅酸盐研究所

项目金额： 25万元

中文摘要： 本项目围绕SiO2基纳米多孔网络结构对石墨烯结构和性能的调控，实现高导电性、宽光谱高透光性及超疏水性功能协同的SiO2基减反射层/超疏水石墨烯层复合透明导电薄膜，将在光伏电池器件中具有极大的应用前景。主要研究内容：(1)折射率可控的宽光谱减反纳米结构设计及可控制备。针对太阳能宽频减反，构筑折射率渐变的SiO2基亚波长复合阵列结构和纳米多孔网络结构。(2)复合薄膜低温可控制备及性能调控。研究纳米多孔网络结构对石墨烯连通网络通道的调控，从而对石墨烯层的形貌、透光性、载流子迁移及能带结构的影响及功能协同机制。(3)复合薄膜表面功能化及其浸润特性调控。研究纳米多孔网络结构对石墨烯浸润性的调控，实现超疏水、自清洁、防静电等功能性。(4)复合薄膜在染料敏化(DSC)、铜铟镓硒(CIGS)或碲化镉(CdTe)薄膜光伏电池中应用。探索石墨烯/半导体界面电子注入、传输、复合、收集等影响机制及能级匹配问题。

中文关键词： SiO2；宽光谱减反；石墨烯；透明导电薄膜；光伏器件

英文摘要： This project is mainly about the functional cooperation transparent conducting films of SiO2 broadband antireflection/superhydrophobic graphene layer, according to the regulation of SiO2 based nano-porous network on the structure and properties of graphene. Such fascinating properties render the composite films as a promising candidate in applications of photovoltaic cells and devices. The main contents are as follows: (1) Design and preparation of broadband antireflection with controllable and gradient refractive index. To achieve the broadband antireflection effect, the SiO2 based sub-wavelength structure and nano-porous network structure will be fabricated and studied. (2) Preparation of SiO2/graphene composite film at low temperature and its performance regulation. It is important to research the effect of SiO2 based nano-porous network structure on the graphene with connected network channel, and thus on the morphology, light transmission, carrier mobility and band structure of graphene layer. The functional cooperation mechanisms will be further studied. (3) Surface functionalization and wettability regulation of composite film. The effect of SiO2 based nano-porous network structure on the wettability of graphene will enhance the superhydrophobic, self-cleaning, anti-static performance. (4) Applications of

英文关键词： SiO2；Broadband antireflection；Graphene；Transparent conductive film；Photovoltaic device