基于p型纳米硅氧无机空穴传输层的平面异质结钙钛矿太阳电池的结构设计、实现及载流子输运机制研究

项目名称： 基于p型纳米硅氧无机空穴传输层的平面异质结钙钛矿太阳电池的结构设计、实现及载流子输运机制研究

项目编号： No.61474065

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 张晓丹

作者单位： 南开大学

项目金额： 80万元

中文摘要： 本项目旨在对具低成本、高效率潜力的钙钛矿太阳电池进行研究。在现有钙钛矿电池基础上，设计了一种基于无机p型纳米硅氧材料作为空穴传输层、ZnO作为电子传输层的平面新型异质结构的钙钛矿电池。本项目的创新性在于：利用p型纳米硅氧的横向和纵向电导率分别可控以及功函数灵活可调的特点，来改善钙钛矿有源层/p型纳米硅氧异质界面特性，以期获得一种可替代并超越现有钙钛矿电池所采用的价格昂贵的有机空穴传输层(Spiro-OMeTAD)材料。通过本项目研究，阐明ZnO和p型纳米硅氧分别作为电子和空穴传输层对钙钛矿有源层特性的影响，建立器件质量级钙钛矿有源层薄膜的表征体系，揭示基于全无机电荷传输层的钙钛矿电池的载流子输运机制，为进一步提高钙钛矿电池性能、研制柔性衬底钙钛矿电池以及钙钛矿电池/铜铟镓硒或硅异质结电池的高效叠层电池奠定基础。因此，本项目对促进高效钙钛矿电池的研制及其可持续发展，具有重要意义。

中文关键词： 太阳电池；钙钛矿；纳米硅氧；异质结；输运机制

英文摘要： The project aims at fabricating stable, low cost and high efficiency potential perovskite solar cells. Based on the existing perovskite cell, an innovative planar-heterojunction structure perovskite solar cell has been designed, using inorganic p-type nanocrystalline-SiOx (nc-SiOx) as hole-transport layer and ZnO as electron-transport layer. The innovation of this project is to improve the interface characteristics between the perovskite active layer and p-type nc-SiOx by taking advantage of the p-type nc-SiOx, such as the controlled parallel and vertical conductivity and the flexibly adjusted work function, to obtain an alternative material，which can exceed existing luxury organic hole transport layer (Spiro-OMeTAD). In this project, we will clarify the impact of the ZnO and p-SiOx on the perovskite active layer and build the quality level device characterization system of the active layer perovskite thin films to reveal the carrier transport mechanism of the perovskite solar cells based on the inorganic carrier transport layer. This will pave an avenue to further improving the performance of the perovskite solar cells and developing the perovskite cells based on the flexible substrate as well as forming the efficient perovskite /CIGS or silicon heterojunction tandem solar cells. Therefore, this project facilitates the improvement and sustainable development of the perovskite solar cells.

英文关键词： Solar cell;Perovskite;nc-SiOx;Heterojunction;Transport mechanism