High Performance Perovskite Hybrid Solar Cells with E-beam-Processed TiOx Electron Extraction Layer

详细信息    查看全文

• 作者：Tianyu Meng ; Chang Liu ; Kai Wang ; Tianda He ; Yu Zhu ; Abdullah Al-Enizi ; Ahmed Elzatahry ; Xiong Gong
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：January 27, 2016
• 年：2016
• 卷：8
• 期：3
• 页码：1876-1883
• 全文大小：656K
• ISSN：1944-8252

文摘

Perovskite hybrid solar cells (pero-HSCs) have drawn great attention in the last 5 years. The efficiencies of pero-HSCs have been boosted from 3.8% to over 20%. However, one of the bottlenecks for commercialization of pero-HSCs is to make a high electrical conductive TiO_x electron extraction layer (EEL). In this study, we report high performance pero-HSCs with TiO_x EEL, where the TiO_x EEL is fabricated by electron beam (e-beam) evaporation, which has been proved to be a well-developed manufacturing process. The resistance of the e-beam evaporated TiO_x EEL is smaller than that of sol–gel processed TiO_x EEL. Moreover, the dark current densities and interfacial charge carrier recombination of pero-HSCs incorporated with e-beam processed TiO_x EEL is also smaller than that of pero-HSCs incorporated with sol–gel processed TiO_x EEL. All these result in efficient pero-HSCs with high reproducibility. These results demonstrate that our method provides a simple and facile way to approach high performance pero-HSCs.