Rutile TiO₂ Nanosheet Arrays Planted on Magnetron Sputtered Ti Metal Layers for Efficient Perovskite Solar Cells

Authors

Nang Zhang, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China 
Meidan Ye, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China 
Xiaoru Wen, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China 
Changjian Lin, State Key Laboratory of Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Lab for Soft Functional Materials Research, Department of Physics, College of Physical Science and Technology, Xiamen University, Xiamen 361005;Follow

Corresponding Author

Changjian Lin(cjlin@xmu.edu.cn)

Abstract

In this work, vertical rutile titanium oxide (TiO₂) nanosheet arrays (NSAs) were firstly hydrothermally grown on the top of thin titanium (Ti) metal layers which were loaded on fluorine doped tin oxide (FTO) substrates by the DF magnetron sputtering deposition method. After an annealing post-treatment, the Ti metal layers were transformed into the compact TiO₂ layers with a strong connection between the rutile TiO₂ NSAs and the FTO substrates. For comparison, the rutile TiO₂ NSAs were similarly planted over two compact TiO₂ layers fabricated through atomic layer deposition (ALD) and spin coating (SC) methods, respectively. When served as the scaffold layers in perovskite solar cells (PSCs), the Ti-based TiO₂ NSAs showed the best cell performance due to the high quality of the TiO₂ NSA nanostructure and excellent interface contacts among the TiO₂ NSAs/TiO₂ compact layers/FTO substrate interface. Significantly, a highest cell efficiency of 11.82% was obtained after careful modification on the organization procedures for the PSC devices.

Graphical Abstract

Keywords

Ti metal layer, TiO2, nanosheet arrays, perovskite solar cells

DOI Link

https://doi.org/10.13208/j.electrochem.161251

Publication Date

2017-04-28

Online Available Date

2017-03-20

Revised Date

2017-03-16

Received Date

2017-02-22

Recommended Citation

Nang Zhang, Meidan Ye, Xiaoru Wen, Changjian Lin. Rutile TiO₂ Nanosheet Arrays Planted on Magnetron Sputtered Ti Metal Layers for Efficient Perovskite Solar Cells[J]. Journal of Electrochemistry, 2017 , 23(2): 226-237.
DOI: 10.13208/j.electrochem.161251
Available at: https://jelectrochem.xmu.edu.cn/journal/vol23/iss2/12

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