Efficient and stable CH3NH3PbI3-sensitized ZnO nanorod array solid-state solar cells

被引：270

作者：

Bi, Dongqin ^{[1
]}

Boschloo, Gerrit ^{[1
]}

Schwarzmueller, Stefan ^{[2
]}

Yang, Lei ^{[1
]}

Johansson, Erik M. J. ^{[1
]}

Hagfeldt, Anders ^{[1
]}

机构：

[1] Uppsala Univ, Angstrom Lab, Dept Chem, Uppsala, Sweden

[2] Univ Munich, Dept Chem, D-81377 Munich, Germany

来源：

NANOSCALE | 2013年 / 5卷 / 23期

基金：

瑞典研究理事会;

关键词：

DYE; TRANSPORT;

D O I：

10.1039/c3nr01542d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report for the first time the use of a perovskite (CH3NH3PbI3) absorber in combination with ZnO nanorod arrays (NRAs) for solar cell applications. The perovskite material has a higher absorption coefficient than molecular dye sensitizers, gives better solar cell stability, and is therefore more suited as a sensitizer for ZnO NRAs. A solar cell efficiency of 5.0% was achieved under 1000 W m(-2) AM 1.5 G illumination for a solar cell with the structure: ZnO NRA/CH3NH3PbI3/spiro-MeOTAD/Ag. Moreover, the solar cell shows a good long-term stability. Using transient photocurrent and photovoltage measurements it was found that the electron transport time and lifetime vary with the ZnO nanorod length, a trend which is similar to that in dye-sensitized solar cells, DSCs, suggesting a similar charge transfer process in ZnO NRA/CH3NH3PbI3 solar cells as in conventional DSCs. Compared to CH3NH3PbI3/TiO2 solar cells, ZnO shows a lower performance due to more recombination losses.

引用

页码：11686 / 11691

页数：6

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