The Photovoltaic Efficiency of the Dye-Sensitized Solar Cells at Different Annealing Temperatures

2014 ◽  
Vol 953-954 ◽  
pp. 128-131 ◽  
Author(s):  
Xiu Fang Wang ◽  
Ya Han Wu ◽  
Cai Xia Yang ◽  
Meng Jun Yuan ◽  
Yan Huo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Pass Filter ◽  
Dye Sensitized ◽  
Annealing Temperatures ◽  
Photovoltaic Efficiency ◽  
Transmission Electron ◽  
Photoelectric Performance ◽  
Sensitized Solar Cells

Upconversion NaYF4:Yb3+Er3+@TiO2 are synthesized and used to compose the photoelectrode (PE) of dye-sensitized solar cells (DSSCs). The morphology, structure, photoluminescence characterization of the NaYF4:Yb3+, Er@TiO2 and the photoelectric performance, alternating current impedance spectroscopy of DSSCs are characterized using transmission electron microscopy, CHI660C electrochemical analyzer, 720 nm long wave pass filter, the infrared laser light, upconversion spectra. Comparing the output power of the DSSC with upconversion performance at different annealing temperatures, the DSSCs under annealing temperature (330°C) show a better photovoltaic efficiency.

Production and characterization of TiO2 nanoparticle thin films for its application in DSSCs

2020 ◽  
Vol 117 (6) ◽  
pp. 622
Author(s):  
Saranyoo Chaiwichian ◽  
Sumneang Lunput
Keyword(s):  
Thin Films ◽  
Dye Sensitized Solar Cells ◽  
X Ray Diffraction ◽  
X Ray ◽  
Glass Substrates ◽  
Dye Sensitized ◽  
Photovoltaic Efficiency ◽  
Transmission Electron ◽  
Sensitized Solar Cells

In this research, TiO2 nanoparticle thin films were successfully prepared on FTO glass substrates through a doctor blade technique, and its application was tested in dye-sensitized solar cells (DSSCs) with different sensitizing dyes such as methylene blue (MB) and methyl orange (MO). The physicochemical properties of intended thin films were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX) and UV-vis diffuse reflectance spectra (UV-vis DRS) techniques. The experimental results revealed that dipped TiO2 nanoparticle thin films into MB dye solution showed a higher photovoltaic efficiency (1.45%) when compared with the MO dye solution. A reasonable mechanism of DSSCs was also proposed.

Fabrication and characterization of porphyrin dye-sensitized solar cells

2011 ◽  
Vol 129 (1-2) ◽  
pp. 236-241 ◽  
Author(s):  
Atsushi Suzuki ◽  
Kengo Kobayashi ◽  
Takeo Oku ◽  
Kenji Kikuchi
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Fabrication And Characterization ◽  
Sensitized Solar Cells

Role of Pristine and Acid-Functionalized Fullerene on Breaking Dye Aggregates and its Impact on the Efficiency of Solar Cells

2014 ◽  
Vol 67 (5) ◽  
pp. 819
Author(s):  
Syed Mujtaba Shah ◽  
Zafar Iqbal ◽  
Muzaffar Iqbal ◽  
Naila Shahzad ◽  
Amina Hana ◽  
...  
Keyword(s):  
Solar Cells ◽  
Zno Nanoparticles ◽  
Self Assembly ◽  
Zno Nanorods ◽  
Active Material ◽  
Dye Sensitized Solar Cells ◽  
Dye Sensitized ◽  
Transmission Electron ◽  
Sensitized Solar Cells

Porphyrin dyes have an inherent tendency to aggregate. This leads to a self-quenching phenomenon that hinders electron transfer to the conduction band of semiconductors in dye-sensitized solar cells. Self-quenching adversely affects the efficiency of solar cells. Here, we report the interaction of porphyrin with pristine and acid-functionalized fullerene molecules on the surface of ZnO nanoparticles under chemisorbed conditions. Chemisorption of porphyrin only on ZnO nanoparticles instigates aggregation of the porphyrin molecules. These aggregates can be effectively broken by chemisorbing fullerene molecules on the surface of the ZnO nanoparticles. This is due to self-assembly formation processes because of porphyrin–fullerene interactions. The nanohybrid material, consisting of ZnO nanorods, acid-functionalized porphyrin, and fullerene derivatives, was characterized by UV–visible spectroscopy, fourier transform infrared spectroscopy, fluorescence spectroscopy, and transmission electron microscopy. The material generates better performing dye-sensitized solar cells when compared with those fabricated from porphyrin-based photo-active material.

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