基于元素掺杂及微结构控制的pn-型DSSCs光阴极NiO基薄膜光电性能优化研究

项目名称： 基于元素掺杂及微结构控制的pn-型DSSCs光阴极NiO基薄膜光电性能优化研究

项目编号： No.51302024

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 一般工业技术

项目作者： 王楠

作者单位： 大连交通大学

项目金额： 25万元

中文摘要： pn-型染料敏化太阳能电池的理论光伏转换效率高达43%，极具发展潜力，但目前所报道的该类电池转换效率极低，其光阴极NiO基薄膜光电性能(在此指光透过性能、染料吸附性能和导电性能)较差是极为严重的制约因素。鉴于NiO能带结构的特殊性，本申请提出元素掺杂的研究方案，以期实现其光透过性能和导电性能的协同优化；鉴于工作电极的微结构(主要指微孔结构和结晶择优取向状态)直接决定其对染料的吸附能力，本申请提出控制NiO基薄膜微结构的研究方案，以期实现其染料吸附性能的优化，从而达到提高其对太阳光有效吸收的目的。本项目将系统研究元素掺杂对NiO基薄膜光透过性能和导电性能的影响规律，以期确定最佳元素掺杂方案，并进一步阐明掺杂元素对薄膜性能的影响机理；将通过对NiO基薄膜微结构形成条件的系统研究，来实现对其微结构的设计与控制，揭示微结构对染料吸附行为影响的规律与机制。

中文关键词： 染料敏化太阳能电池；NiO；掺杂；多孔；择优取向

英文摘要： The theoretical photovoltaic conversion efficiency of pn-type dye-sensitized solar cells can be as high as 43%, thus the development potential for the cells is very great. However, the photovoltaic conversion efficiency of the cells reported from literatures was still very low. The main obstacles are the poor photoelectric properties (mainly refer to the transmission property, the conductive property and the dye-adsorption capacity) of the photocathode NiO-based film. Because of the particularity of energy band structure of NiO, the research programs of elements doping are proposed to enhance the comprehensive performance of the transmission property and the conductive property. Moreover, the microstructure (mainly refers to microporous structure and preferred orientation) of the photocathode NiO-based film severely affects the dye-absorption capacity, so the research program of microstructure control is proposed to optimize the dye-absorption capacity, and then to enhance the effective absorptivity for solar light. In this project, the effects of the doping elements on the photoelectric properties of NiO thin film will be systematically studied to determine the doping program and further clarify the mechanism of the effect of doping elements on the photoelectric properties. The effect of the preparation paramet

英文关键词： Dye sensitized solar cell；NiO；Doping；Porous；Preferred orientation