Morphological and photoelectrochemical characterization of core-shell nanoparticle films for dye-sensitized solar cells: Zn-O type shell on SnO2 and TiO2 cores.
作者： N.-G. Park , M. G. Kang , K. M. Kim , K. S. Ryu , S. H. Chang
DOI: 10.1021/LA036122X
关键词: Mesoporous material 、 Dye-sensitized solar cell 、 Nanoparticle 、 Scanning electron microscope 、 Nanotechnology 、 Absorption (chemistry) 、 Solar cell efficiency 、 Morphology (linguistics) 、 Chemical engineering 、 Materials science 、 Zinc
摘要: Core−shell type nanoparticles with SnO2 and TiO2 cores zinc oxide shells were prepared characterized by surface sensitive techniques. The influence of the structure ZnO shell morphology nanoparticle films on performance was evaluated. X-ray absorption near-edge extended fine studies show presence thin ZnO-like around at low Zn levels. In case cores, nanocrystals are formed high Zn/Sn ratios (ca. 0.5). Scanning electron microscopy that modification changes film from a compact mesoporous to less dense macroporous structure. contrast, has no apparent morphology. For adding improves solar cell efficiency increasing light scattering dye uptake decreasing recombination. core decreases ef...
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