Efficient inorganic-organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors
Efficient inorganic-organic hybrid heterojunction solar cells containing perovskite compound and polymeric hole conductors
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DOI：
10.1038/nphoton.2013.80
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发表时间：
2013-06-01
期刊：
影响因子：
35
通讯作者：
Seok, Sang Il
中科院分区：
文献类型：
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作者：
Heo, Jin Hyuck;Im, Sang Hyuk;Seok, Sang Il
无机 - 有机杂化结构已成为下一代染料敏化太阳能电池的创新替代方案，因为它们结合了两种体系的优势。在此，我们介绍一种层状三明治型结构，其核心包含介孔（mp）-TiO₂的双连续三维纳米复合材料，以CH₃NH₃PbI₃钙钛矿作为光捕获剂，以及一种聚合物空穴导体。这个平台为开发低成本、溶液加工、高效率的太阳能电池创造了新的机遇。聚合物空穴导体的使用，特别是聚三芳基胺，显著提高了电池的开路电压Vₒₑ和填充因子。基于这些无机 - 有机杂化物的太阳能电池在标准AM 1.5条件下表现出16.5 mA cm⁻²的短路电流密度Jₛₑ、0.997 V的开路电压Vₒₑ和0.727的填充因子，产生了12.0%的功率转换效率。
Inorganic-organic hybrid structures have become innovative alternatives for next-generation dye-sensitized solar cells, because they combine the advantages of both systems. Here, we introduce a layered sandwich-type architecture, the core of which comprises a bicontinuous three-dimensional nanocomposite of mesoporous (mp)-TiO2, with CH(3)NH(3)Pbl(3) perovskite as light harvester, as well as a polymeric hole conductor. This platform creates new opportunities for the development of low-cost, solution-processed, high-efficiency solar cells. The use of a polymeric hole conductor, especially poly-triarylamine, substantially improves the open-circuit voltage V-oc and fill factor of the cells. Solar cells based on these inorganic-organic hybrids exhibit a short-circuit current density J(sc) of 16.5 mA cm(-2), V-oc of 0.997 V and fill factor of 0.727, yielding a power conversion efficiency of 12.0% under standard AM 1.5 conditions.