The good electrical and morphological characteristics of TiO2 nanofibers and the high extinction coefficient of CH3NH3PbI3 perovskite are combined to obtain a solar cell with a power conversion efficiency of 9.8%. The increase of the film thickness dramatically diminishes the performance due to the reduction in porosity of the TiO2 nanofiber framework. The optimum device (similar to 413 nm film thickness) is compared to a planar device, where the latter produces higher V-oc but lower J(sc), and consequently lower efficiency at all measured light intensities.
Type
research article
Web of Science ID
WOS:000330041400059
Authors
Dharani, Sabba
•
Mulmudi, Hemant Kumar
•
Yantara, Natalia
•
Pham Thi Thu, Trang
•
Park, Nam Gyu
•
•
Mhaisalkar, Subodh
•
Mathews, Nripan
•
Boix, Pablo P.
Publication date
2014
Publisher
Published in
Volume
6
Issue
3
Start page
1675
End page
1679
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
March 3, 2014
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