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Content of INVITED REVIEW—International Conference on Nanoscience & Technology, China 2013 in our journal
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Dye-sensitized solar cells:Atomic scale investigation of interface structure and dynamics
Ma Wei (马薇), Zhang Fan (张帆), Meng Sheng (孟胜)
Chin. Phys. B, 2014, 23 (
8
): 086801. DOI:
10.1088/1674-1056/23/8/086801
Abstract
(
584
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Recent progress in dye-sensitized solar cells (DSC) research is reviewed, focusing on atomic-scale investigations of the interface electronic structures and dynamical processes, including the structure of dye adsorption onto TiO
2
, ultrafast electron injection, hot-electron injection, multiple-exciton generation, and electron-hole recombination. Advanced experimental techniques and theoretical approaches are briefly summarized, and then progressive achievements in photovoltaic device optimization based on insights from atomic scale investigations are introduced. Finally, some challenges and opportunities for further improvement of dye solar cells are presented.
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Three-dimensional noble-metal nanostructure:A new kind of substrate for sensitive, uniform, and reproducible surface-enhanced Raman scattering
Tian Cui-Feng (田翠锋), You Hong-Jun (尤红军), Fang Ji-Xiang (方吉祥)
Chin. Phys. B, 2014, 23 (
8
): 087801. DOI:
10.1088/1674-1056/23/8/087801
Abstract
(
633
)
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(3195KB)(
813
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Surface-enhanced Raman spectroscopy (SERS) is a powerful vibrational spectroscopy technique for highly sensitive structural detection of low concentration analyte. The SERS activities largely depend on the topography of the substrate. In this review, we summarize the recent progress in SERS substrate, especially focusing on the three-dimensional (3D) noble-metal substrate with hierarchical nanostructure. Firstly, we introduce the background and general mechanism of 3D hierarchical SERS nanostructures. Then, a systematic overview on the fabrication, growth mechanism, and SERS property of various noble-metal substrates with 3D hierarchical nanostructures is presented. Finally, the applications of 3D hierarchical nanostructures as SERS substrates in many fields are discussed.
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Silicon nanoparticles:Preparation, properties, and applications
Chang Huan (常欢), Sun Shu-Qing (孙树清)
Chin. Phys. B, 2014, 23 (
8
): 088102. DOI:
10.1088/1674-1056/23/8/088102
Abstract
(
592
)
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15323
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Silicon nanoparticles have attracted great attention in the past decades because of their intriguing physical properties, active surface state, distinctive photoluminescence and biocompatibility. In this review, we present some of the recent progress in preparation methodologies and surface functionalization approaches of silicon nanoparticles. Further, their promising applications in the fields of energy and electronic engineering are introduced.
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Functionalization of carbon nanotubes/graphene by polyoxometalates and their enhanced photo-electrical catalysis
Zhang Shuang-Shuang (张双双), Liu Rong-Ji (刘荣基), Zhang Guang-Jin (张光晋), Gu Zhan-Jun (谷战军)
Chin. Phys. B, 2014, 23 (
8
): 088801. DOI:
10.1088/1674-1056/23/8/088801
Abstract
(
699
)
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(1555KB)(
828
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Carbon nanotubes and graphene are carbon-based materials, which possess not only unique structure but also properties such as high surface area, extraordinary mechanical properties, high electronic conductivity, and chemical stability. Thus, they have been regarded as an important material, especially for exploring a variety of complex catalysts. Considerable efforts have been made to functionalize and fabricate carbon-based composites with metal nanoparticles. In this review, we summarize the recent progress of our research on the decoration of carbon nanotubes/graphene with metal nanoparticles by using polyoxometalates as key agents, and their enhanced photo-electrical catalytic activities in various catalytic reactions. The polyoxometalates play a key role in constructing the nanohybrids and contributing to their photo-electrical catalytic properties.
ISSN 1674-1056 CN 11-5639/O4
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