Enhancement of properties of dye-sensitized solar cells by surface plasmon resonance of Ag nanowire core–shell structure in TiO2 films

2013 ◽  
Vol 1 (24) ◽  
pp. 7229 ◽  
Author(s):  
Kaimo Guo ◽  
Meiya Li ◽  
Xiaoli Fang ◽  
Xiaolian Liu ◽  
Yongdan Zhu ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Shell Structure ◽  
Dye Sensitized Solar Cells ◽  
Core Shell ◽  
Tio2 Films ◽  
Dye Sensitized ◽  
Core Shell Structure ◽  
Sensitized Solar Cells ◽  
Ag Nanowire

scholarly journals TUNABLE SURFACE PLASMON RESONANCES OF Au@TiO2 CORE-SHELL NANOPARTICLES ON THE DSSC (DYE SENSITIZED SOLAR CELLS) PERFORMANCE

2019 ◽  
Vol 20 (3) ◽  
pp. 106
Author(s):  
Friska Ayu Fitrianti Sugiono ◽  
Doty Dewi Risanti
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Dye Sensitized Solar Cells ◽  
Core Shell ◽  
Surface Plasmon Resonances ◽  
Shell Nanoparticles ◽  
Dye Sensitized ◽  
Plasmon Resonances ◽  
Core Shell Nanoparticles ◽  
Sensitized Solar Cells

Plasmonic core-shell nanoparticles, i.e. gold can improve the efficiency of Dye-sensitized Solar Cell by increase the light harvesting due to the strong near-field effect LSPR (Localized Surface Plasmon Resonance). To achieve maximum enhancement, the morphology of core-shell need to be optimized with coated either by insulator such as semiconductor, i.e. TiO2. In this paper, morphology of Au@TiO2 core-shell precisely control by various TiO2 volume and systematically study its influence on the plasmonic enhancement effect. A gold solution was prepared using Turkevich method. The crystal structure of the powders was determined by powder X-ray diffraction (XRD). The optical properties were measured by UV-Vis absorption spectroscopy using UV-Vis Lambda 750. The photocurrent action spectra or IPCE in visible light spectrum was obtained by adjusting wavelength of incident light, i.e. series connection of halogen lamp and monochromator. UV-Vis absorption spectra of core–shell showed the position of the surface plasmon Au band in the range of 500–550 nm. According to UV-Vis characterization, all samples studied show weak surface plasmon resonance response (~520 to 550 nm) as indicative of the thick TiO2 shells for individual core-shell [email protected] Surface Plasmon Resonances of Au@TiO2 Core-shell Nanoparticles on the DSSC (Dye Sensitized Solar Cells) Performance

Characterization of a TiO2/Multi-Wall Carbon Nanotube Core–Shell Nanocomposite Synthesized by a Hydrothermal Method

2020 ◽  
Vol 20 (6) ◽  
pp. 3582-3587 ◽  
Author(s):  
Moo-Hyun Seo ◽  
Kyeong-Han Na ◽  
Wan-Hee Yang ◽  
Tae-Hyeob Song ◽  
Won-Youl Choi
Keyword(s):  
Solar Cells ◽  
Electron Microscope ◽  
Carbon Nanotube ◽  
Charge Transport ◽  
Shell Structure ◽  
Dye Sensitized Solar Cells ◽  
Core Shell ◽  
Dye Sensitized ◽  
Core Shell Structure ◽  
Sensitized Solar Cells

TiO2 is a significant n-type semiconducting material because of its superior electric and photocatalytic properties. Although this material has been extensively studied as a semiconductor electrode for dye-sensitized solar cells for its inherent bandgap and its excellent electrical and chemical properties, the photoelectric efficiency is nevertheless lower than that of the Si-based solar cells, which is generally reported as 13–27%. On the other hand, various carbon structures have been studied to increase the overall charge transport efficiency by reducing the charge transport resistance in the cell while having high electric conductivity. These results are expected to improve the photoelectric conversion efficiency when applied to dye-sensitized solar cells. We fabricated a TiO2/multi-wall carbon nanotube (MWCNT) core–shell structure by a hydrothermal method. The TiO2 anatase phase in the TiO2/MWCNT core–shell structure was confirmed by X-ray diffraction (XRD). The core–shell nanostructure with a diameter of 127 nm to 211 nm was observed by field emission scanning electron microscope (FE-SEM). The morphology of the TiO2/MWCNT core–shell nanocomposite was also analyzed by transmission electron microscope (TEM). The Fourier-Transform Infrared Spectrometer (FT-IR) and Brunauer Emmett and Teller (BET) method were used to observe the chemical bonding and specific surface area of the TiO2/MWCNT core–shell nanocomposite, respectively. The TiO2/MWCNT core–shell composites had a larger specific surface area of 92.00 m2/g, a larger pore volume of 0.33 cm3/g, and a larger pore size of 65.21 nm than commercial TiO2 nanoparticles (P25). The TiO2/MWCNT core–shell structure may provide a high-speed path for photoelectrons to pass quickly and will be useful for various applications, such as solar cells and photocatalysts.

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