scholarly journals Effect of TiO2 particle size on the properties of electron transport and back-reaction in dye-sensitized solar cells

2009 ◽  
Vol 58 (2) ◽  
pp. 1338
Author(s):  
Liang Lin-Yun ◽  
Dai Song-Yuan ◽  
Hu Lin-Hua ◽  
Dai Jun ◽  
Liu Wei-Qing
Keyword(s):  
Particle Size ◽  
Solar Cells ◽  
Electron Transport ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Particle ◽  
Back Reaction ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Effect of TiO2 Particle Size on the Performance of Flexible Dye Sensitized Solar Cells

2015 ◽  
Vol 15 (9) ◽  
pp. 6675-6679 ◽  
Author(s):  
Zhen-Yu Li ◽  
M. Shaheer Akhtar ◽  
O-Bong Yang ◽  
V. S. Prasad ◽  
Narendra Nath Ghosh
Keyword(s):  
Particle Size ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Particle ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

EFFECTS OF TiO2 PARTICLE SIZE ON THE PERFORMANCE OF DYE-SENSITIZED SOLAR CELLS USING IONIC LIQUID ELECTROLYTES

NANO ◽  
2014 ◽  
Vol 09 (05) ◽  
pp. 1440010 ◽  
Author(s):  
SEIGO ITO ◽  
TAKUROU N. MURAKAMI ◽  
SHAIK M. ZAKEERUDDIN ◽  
TETSUO YAZAWA ◽  
MASAO MIZUNO ◽  
...  
Keyword(s):  
Particle Size ◽  
Ionic Liquid ◽  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Impedance Measurement ◽  
Tio2 Particle ◽  
Distribution Analysis ◽  
Dye Sensitized ◽  
Photovoltaic Effects ◽  
Sensitized Solar Cells

Different-sized nanocrystalline- TiO 2 particles have been used for the optimization of photovoltaic effects of dye-sensitized solar cells (DSCs) using an ionic-liquid (IL) electrolyte. Ru dye (Z907) was used for the IL-DSC optimization. The TiO 2 nanoparticle sizes and the thickness of nanocrystalline- TiO 2 electrodes ranged from 13 nm to 81 nm and 2 μm to 23 μm, respectively. The particle size of the nanocrystalline TiO 2 film greatly affected the photovoltaic characteristics, particularly for the IL electrolyte due to limitation of the photocurrent by [Formula: see text]-diffusion. The optimized electrode for IL-DSC had a 15 μm thickness using a 27 nm diameter of nanocrystalline- TiO 2 particles. In order to characterize the effect of the TiO 2 particle size on the photovoltaic effects of IL-DSCs, a scanning electron micrograph (surface and cross section of nanoparticles), BET specific surface area analysis, pore-size distribution analysis, photocurrent transient measurements, haze spectroscopy, photovoltaic measurements, incident-photon-to-current conversion efficiency spectroscopy and impedance measurement have been used.

Efficient electron transport in tetrapod-like ZnO metal-free dye-sensitized solar cells

2009 ◽  
Vol 2 (6) ◽  
pp. 694 ◽  
Author(s):  
Wei-Hao Chiu ◽  
Chia-Hua Lee ◽  
Hsin-Ming Cheng ◽  
Hsiu-Fen Lin ◽  
Shih-Chieh Liao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Dye Sensitized Solar Cells ◽  
Metal Free ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

scholarly journals Titania Particle Size Effect on the Overall Performance of Dye-Sensitized Solar Cells

2007 ◽  
Vol 111 (17) ◽  
pp. 6296-6302 ◽  
Author(s):  
Tammy P. Chou ◽  
Qifeng Zhang ◽  
Bryan Russo ◽  
Glen E. Fryxell ◽  
Guozhong Cao
Keyword(s):  
Particle Size ◽  
Solar Cells ◽  
Size Effect ◽  
Dye Sensitized Solar Cells ◽  
Particle Size Effect ◽  
Titania Particle ◽  
Dye Sensitized ◽  
Overall Performance ◽  
Sensitized Solar Cells

Analysis of Charge Transport and Recombination Studied by Electrochemical Impedance Spectroscopy for Dye-sensitized Solar Cells With Atomic Layer Deposited Metal Oxide Treatment on TiO2 Surface

2010 ◽  
Vol 1270 ◽  
Author(s):  
Braden Bills ◽  
Mariyappan Shanmugam ◽  
Mahdi Farrokh Baroughi ◽  
David Galipeau
Keyword(s):  
Solar Cells ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Atomic Layer ◽  
Back Reaction ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

AbstractThe performance of dye-sensitized solar cells (DSSCs) is limited by the back-reaction of photogenerated electrons from the porous titanium oxide (TiO2) nanoparticles back into the electrolyte solution, which occurs almost exclusively through the interface. This and the fact that DSSCs have a very large interfacial area makes their performance greatly dependant on the density and activity of TiO2 surface states. Thus, effectively engineering the TiO2/dye/electrolyte interface to reduce carrier losses is critically important for improving the photovoltaic performance of the solar cell. Atomic layer deposition (ALD), which uses high purity gas precursors that can rapidly diffuse through the porous network, was used to grow a conformal and controllable aluminum oxide (Al2O3) and hafnium oxide (HfO2) ultra thin layer on the TiO2 surface. The effects of this interfacial treatment on the DSSC performance was studied with dark and illuminated current-voltage and electrochemical impedance spectroscopy (EIS) measurements.

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