TiO2电子传输层在钙钛矿太阳能电池中的应用进展
Application Progress of TiO2 Electron Transport Layer in Perovskite Solar Cells
DOI: 10.12677/APP.2022.1211066, PDF,    科研立项经费支持
作者: 张 洁：郑州大学物理学院(微电子学院)，河南 郑州；郑州师范学院物理与电子工程学院，河南 郑州；郑州威科姆科技股份有限公司，河南 郑州；田星原：郑州师范学院物理与电子工程学院，河南 郑州；河南大学光伏材料省重点实验室，河南 开封；陈潞潼, 李 丛, 张梦珂, 王 佳, 吴亚芳, 魏 畅：郑州师范学院物理与电子工程学院，河南 郑州；晁明举*：郑州大学物理学院(微电子学院)，河南 郑州
关键词: 钙钛矿太阳能电池；TiO2电子传输层；光电转换效率；Perovskite Solar Cell； TiO2 Electron Transport Layer； Photoelectric Conversion Efficiency
摘要: 钙钛矿太阳能电池具有成本便宜、器件效率高、制备工艺相对简单等优势受到人们的广泛关注。电子传输层是钙钛矿太阳能的重要结构，在整个电池里要起到输送电子并把空穴阻隔在传输层以外的作用。TiO2具有与钙钛矿材料最低未占分子轨道能级相适应的导带底(−4.1 eV)，和比较宽的带隙大约3 eV，有益于电子的选择性传输，因此作为电子传输层材料，在钙钛矿太阳能电池中应用非常广泛。本文简要介绍了TiO2电子传输层的结构、性质和制备方法，重点分析了目前提高TiO2电子传输层材料性能的主要方法：形貌调控、掺杂和界面修饰，通过这些方法对TiO2电子传输层进行调控，并在不同程度上使电池的光电转换效率得到提升。希望研究结果能够为制备出性能优异的TiO2电子传输层提供一定的参考。
Abstract: Perovskite solar cells have attracted extensive attention due to their low cost, high device efficiency, and relatively simple preparation process. The electron transport layer is an important structure of perovskite solar energy, which plays the role of transporting electrons and blocking holes outside the transport layer in the whole cell. TiO2 has a conduction band bottom (−4.1 ev) corresponding to the lowest unoccupied molecular orbital energy level of perovskite materials, and a relatively wide band gap of about 3 eV, which is beneficial to the selective transmission of electrons. Therefore, as an electron transport layer material, TiO2 is widely used in perovskite solar cells. In this paper, the structure, properties and preparation methods of TiO2 electron transport layer were briefly introduced. The main methods to improve the properties of TiO2 electron transport layer materials were analyzed, including morphology control, doping and interface modification. Through these methods, the TiO2 electron transport layer is regulated, and the photoelectric conversion efficiency of the battery is improved to varying degrees. The research results are expected to provide some reference value for the preparation of TiO2 electron transport layer with excellent performance.
文章引用：张洁, 田星原, 陈潞潼, 李丛, 张梦珂, 王佳, 吴亚芳, 魏畅, 晁明举. TiO2电子传输层在钙钛矿太阳能电池中的应用进展[J]. 应用物理, 2022, 12(11): 561-568. https://doi.org/10.12677/APP.2022.1211066

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