Stable Perovskite Solar Cells Based on WO3 Nanocrystals as Hole Transport Layer

被引：35

作者：

Li, Zhiwei ^{[1
]}

机构：

[1] Zhoukou Normal Univ, Coll Chem & Chem Engn, Zhoukou 466001, Henan, Peoples R China

来源：

CHEMISTRY LETTERS | 2015年 / 44卷 / 08期

关键词：

EFFICIENCY;

D O I：

10.1246/cl.150445

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hybrid organic/inorganic perovskite solar cells have been rapidly developed with spectacular success in both nanostructured and thin-film versions. Herein, we report a simple solvothermal method using WCl6 and NH3 center dot H2O as precursors in ethanol solvent at 200 degrees C for 24 h to fabricate WO3 nanocrystals (NCs) as the hole transport layer in an inverted perovskite solar cell. The thin WO3 NC film with a smooth and compact surface enabled the formation of a continuous and compact layer of well-crystallized CH3NH3PbI3 in a two-step solution process. A cell efficiency of 7.68% was obtained, which is a promising planar perovskite solar cell based on an inorganic hole extraction layer.

引用

页码：1140 / 1141

页数：2

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