全固态钙钛矿敏化ZnO-TiO2核壳结构纳米棒阵列光电池的制备及性能研究

项目名称： 全固态钙钛矿敏化ZnO-TiO2核壳结构纳米棒阵列光电池的制备及性能研究

项目编号： No.21471140

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 钟敏

作者单位： 中国计量大学

项目金额： 85万元

中文摘要： 可再生、清洁太阳能的开发利用是解决当今世界范围内的化石燃料枯竭和环境污染问题的重要途径之一。全固态钙钛矿敏化ZnO-TiO2核壳结构纳米棒阵列光电池由于既具有ZnO纳米棒阵列电子迁移率高、TiO2壳层电子注入效率高、钙钛矿敏化剂价廉、全光谱吸收的特点又具有固体电解质长程稳定性好的优点，因而受到极大关注。本项目拟采用一种新型高分子络合可控自组装法合成纳米ZnO阵列薄膜。在纳米ZnO阵列表面包覆一层TiO2，解决ZnO电子注入效率低的问题；拟采用连续两步沉积法设计合成钙钛矿光敏剂，解决器件价格昂贵、吸收光谱有限、性能偏差大的问题；拟采用固体空穴传输材料制备全固态太阳能电池，解决液体电解质器件长期稳定性的问题。本项目的目标：获得一种高效全固态染料敏化光电池的新型制备工艺；提出敏化剂界面吸附模型；阐明敏化剂与复合半导体薄膜之间的电子转移机理；揭示TiO2的包覆和钙钛矿的敏化对光电性能的影响规律。

中文关键词： 太阳能电池；半导体；功能纳米材料；可控合成；构效关系

英文摘要： The development and utilization of renewable, clean solar energy is an important way to solve the fossil fuel depletion and environmental pollution problems in the world. All-solid-state perovskite-sensitized ZnO-TiO2 core-shell structure nanorod arrays solar cell have great concern due to the high electron mobility of ZnO nanorod arrays, the high electron injection efficiency of TiO2, the cheapness and full spectrum absorption characteristics of perovskite sensitizer and the advantage of the long term stability of the solid electrolyte. This project intends to prepare ZnO nanorod arrays film by using a new polymer complex controllable self-assembly method. Coating the surface of ZnO nanorod arrays with a layer of TiO2 can solve the problem of low electron injection efficiency of ZnO; The design and synthesis of perovskite photosensitizer using continuous two step deposition method can solve the problem of the expensive price, the limited range of absorption spectra and the large performance deviation of the device; The synthesis of all-solid-state solar cells using solid hole transport materials can solve the problem of the long term stability of liquid electrolyte device. The goal of this project is to obtain a new synthesis method of all-solid-state dye-sensitized solar cells, the adsorption model of sensitizing agent, the mechanism of electron transfer between sensitizer and composite semiconductor thin films and the influence law of the TiO2 coating and perovskite sensitization on the photoelectric properties.

英文关键词： solar-cell;semiconductor;functional-nanomaterials;controllable synthesis;structure-property relationship