New iridium complex as additive to the spiro-OMeTAD in perovskite solar cells with enhanced stability

被引：67

作者：

Badia, Laura ^{[1
]}

Mas-Marza, Elena ^{[1
]}

Sanchez, Rafael S. ^{[1
]}

Barea, Eva M. ^{[1
]}

Bisquert, Juan ^{[1
,2
]}

Mora-Sero, Ivan ^{[1
]}

机构：

[1] Univ Jaume 1, Dept Phys, Photovolta & Optoelect Devices Grp, Castellon de La Plana 12071, Spain

[2] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah, Saudi Arabia

来源：

APL MATERIALS | 2014年 / 2卷 / 08期

关键词：

ORGANOMETAL HALIDE PEROVSKITES; INORGANIC HOLE CONDUCTOR; HIGH-EFFICIENCY; RECOMBINATION; PHOTOVOLTAICS; IODIDE;

D O I：

10.1063/1.4890545

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A new iridium complex, IrCp*Cl(PyPyz)[TFSI], has been synthesized and used as additive for the hole transporter material, spiro-OMeTAD, in perovskite solar cells. The cells prepared with this Ir additive present higher efficiency than reference cells, and similar to cells prepared with Co additive. We have determined that the presence of metal complexes as additives decreases the recombination rate, as it has been observed by impedance spectroscopy. Very interestingly, while the efficiency after 3 months decreases by 22% and 70% for reference cell and cell with Co additive, respectively, the efficiency of devices containing the Ir additive is only decreased by a 4%. (C) 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

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页数：6

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