TY - JOUR
T1 - Single-crystalline rutile TiO2 hollow spheres
T2 - Room-temperature synthesis, tailored visible-light-extinction, and effective scattering layer for quantum dot-sensitized solar cells
AU - Wang, Hongqiang
AU - Miyauchi, Masahiro
AU - Ishikawa, Yoshie
AU - Pyatenko, Alexander
AU - Koshizaki, Naoto
AU - Li, Yue
AU - Li, Liang
AU - Li, Xiangyou
AU - Bando, Yoshio
AU - Golberg, Dmitri
PY - 2011/11/30
Y1 - 2011/11/30
N2 - A general synthesis of inorganic single-crystalline hollow spheres has been achieved through a mechanism analogous to the Kirkendall effect, based on a simple one-step laser process performed at room temperature. Taking TiO 2 as an example, we describe the laser process by investigating the influence of experimental parameters, for example, laser wavelength, laser fluence/irradiation time, liquid medium, and concentration of starting materials, on the formation of hollow spheres. It was found that the size-tailored TiO2 hollow spheres demonstrate tunable light scattering over a wide visible-light range. Inspired by the effect of light scattering, we introduced the TiO2 hollow sphere's scattering layer in quantum dot-sensitized solar cells and achieved a current notable 10% improvement of solar-to-electric conversion efficiency, indicating that TiO 2 hollow spheres are potential candidates in optical and optoelectronic devices.
AB - A general synthesis of inorganic single-crystalline hollow spheres has been achieved through a mechanism analogous to the Kirkendall effect, based on a simple one-step laser process performed at room temperature. Taking TiO 2 as an example, we describe the laser process by investigating the influence of experimental parameters, for example, laser wavelength, laser fluence/irradiation time, liquid medium, and concentration of starting materials, on the formation of hollow spheres. It was found that the size-tailored TiO2 hollow spheres demonstrate tunable light scattering over a wide visible-light range. Inspired by the effect of light scattering, we introduced the TiO2 hollow sphere's scattering layer in quantum dot-sensitized solar cells and achieved a current notable 10% improvement of solar-to-electric conversion efficiency, indicating that TiO 2 hollow spheres are potential candidates in optical and optoelectronic devices.
UR - http://www.scopus.com/inward/record.url?scp=81855190861&partnerID=8YFLogxK
U2 - 10.1021/ja2049463
DO - 10.1021/ja2049463
M3 - 文章
AN - SCOPUS:81855190861
SN - 0002-7863
VL - 133
SP - 19102
EP - 19109
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 47
ER -