TY - JOUR
T1 - Heterogeneous flammulina velutipes-like CdTe/TiO 2 nanorod array
T2 - A promising composite nanostructure for solar cell application
AU - Luo, Bingwei
AU - Deng, Yuan
AU - Wang, Yao
AU - Zhang, Zhiwei
AU - Tan, Ming
PY - 2012/3/15
Y1 - 2012/3/15
N2 - Core-shell heterogeneous CdTe/TiO 2 nanorod arrays have been prepared by a two-step synthesis route through combined hydrothermal growth and magnetron sputtering. The composition and microstructure of the arrays were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM), which show that CdTe nanograins coated on the surface of the single-crystalline TiO 2 nanorod arrays to form a type-II heterostructure. Compared with TiO 2 nanorod arrays, the spectrum absorption region of CdTe/TiO 2 core-shell nanostructure is broadened from ultraviolet light to visible light. The photoelectrodes of CdTe/TiO 2 nanorod arrays show better photoelectric properties than those of bare TiO 2 nanorod arrays. The output power of CdTe/TiO 2 nanorod arrays is 25 times higher than that of a bare TiO 2 nanorod array. These results indicate that the photoelectrode of CdTe/TiO 2 nanorod array has a promising application in solar cell.
AB - Core-shell heterogeneous CdTe/TiO 2 nanorod arrays have been prepared by a two-step synthesis route through combined hydrothermal growth and magnetron sputtering. The composition and microstructure of the arrays were investigated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HRTEM), which show that CdTe nanograins coated on the surface of the single-crystalline TiO 2 nanorod arrays to form a type-II heterostructure. Compared with TiO 2 nanorod arrays, the spectrum absorption region of CdTe/TiO 2 core-shell nanostructure is broadened from ultraviolet light to visible light. The photoelectrodes of CdTe/TiO 2 nanorod arrays show better photoelectric properties than those of bare TiO 2 nanorod arrays. The output power of CdTe/TiO 2 nanorod arrays is 25 times higher than that of a bare TiO 2 nanorod array. These results indicate that the photoelectrode of CdTe/TiO 2 nanorod array has a promising application in solar cell.
KW - Light absorption and reflection
KW - Nanofabrications
KW - Nanostructured materials
KW - Photoconductivity and photovoltaics
UR - https://www.scopus.com/pages/publications/84856219753
U2 - 10.1016/j.jallcom.2011.12.090
DO - 10.1016/j.jallcom.2011.12.090
M3 - 文章
AN - SCOPUS:84856219753
SN - 0925-8388
VL - 517
SP - 192
EP - 197
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -