Fast extraction of electron across the interface of nanowire CH^sub 3^NH^sub 3^PbI^sub 3^/ZnO on flexible PET substrate

Nanowire perovskite CH3NH3PbI3 was successfully grown on cheap commercial PET substrate by a modified two-step spin-coating procedure, in which CH3NH3I solution with small amount of DMF was used. It was found that morphology and crystallization behavior of the nanowire perovskites depended strongly...

Full description

Saved in:
Bibliographic Details
Published inMaterials letters Vol. 197; p. 139
Main Authors Zhao, Xunan, Hao, Huiying, Dong, Jingjing, Cheng, Feiyu, Hao, Jiabin, Xing, Jie, Liu, Hao
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier BV 15.06.2017
Subjects
Charge injection
Crystallization
Extraction
Materials science
Nanowires
Perovskite
Perovskites
Photovoltaic cells
Substrates
Thin films
Zinc oxide
Zinc oxides
Online AccessGet full text

Cover

More Information
Summary:Nanowire perovskite CH3NH3PbI3 was successfully grown on cheap commercial PET substrate by a modified two-step spin-coating procedure, in which CH3NH3I solution with small amount of DMF was used. It was found that morphology and crystallization behavior of the nanowire perovskites depended strongly on the amount of DMF. Interfaced with ZnO thin films, the nanowire perovskites showed faster extraction of electron than the usual thin film perovskites, possibly due to the larger surface-to-volume ratio and better contact with ZnO. The specific charge injection rate Ket as high as 1.684 × 109/s was achieved, which could have the potential to enhance the performance of flexible perovskite solar cell.
ISSN:0167-577X
1873-4979