Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7118271 | Materials Science in Semiconductor Processing | 2016 | 8 Pages |
Abstract
A novel scaffold layer composed of TiO2-ZrO2 composite was fabricated for perovskite solar cell. Compared with pure TiO2 nanoparticles (NPs), the relatively larger ZrO2 NPs could increase film roughness and enhance light-scattering effect in TiO2-ZrO2 composite films. The device exhibited outstanding power conversion efficiency (PCE) of 11.41%. The morphology and aggregation of particles, three-dimensional roughness, as well as the ingredient and micro-structure of FTO/compact TiO2/TiO2-ZrO2 was investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscope (AFM), energy dispersive spectrometer (EDS), and X-ray diffraction (XRD), respectively. Moreover, the optical property of TiO2-ZrO2 films for visible light was characterized by UV-visible absorption spectroscopy (UV-vis), and its influence on quantum yield of the device was further demonstrated by incident photon-to-electron conversion efficiency (IPCE). Owing to the inert oxide, the short-circuit current density of perovskite solar cell using TiO2-ZrO2 composition as scaffold layer increased by 21% compared to the one employing pure TiO2 mesoporous film.
Related Topics
Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
M. Che, L. Zhu, Y.L. Zhao, D.S. Yao, X.Q. Gu, J. Song, Y.H. Qiang,