Öztürk, Asiye

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https://hdl.handle.net/20.500.14411/7710
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A.,Öztürk
O.,Asiye
Asiye, Ozturk
Ozturk,A.
A.,Ozturk
Ö.,Asiye
Öztürk,A.
Asiye, Öztürk
O., Asiye
Öztürk, Asiye
Ozturk, Asiye
A., Ozturk
Job Title
Öğretim Görevlisi
Email Address
asiye.ozturk@atilim.edu.tr
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English Translation and Interpretation
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Former Staff
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JournalCount
Advanced Materials Research -- 2012 International Conference on Advances in Materials Science and Engineering, AMSE 2012 -- 9 December 2012 through 10 December 2012 -- Seoul -- 954882
Ceramic Engineering and Science Proceedings -- Advances in Bioceramics and Porous Ceramics VI - 37th International Conference on Advanced Ceramics and Composites, ICACC 2013 -- 27 January 2013 through 1 February 2013 -- Daytona Beach, FL -- 1016551
Ceramic Engineering and Science Proceedings -- Ceramic Materials for Energy Applications III - 37th International Conference on Advanced Ceramics and Composites, ICACC 2013 -- 27 January 2013 through 1 February 2013 -- Daytona Beach, FL -- 1016521
Ceramic Transactions -- Advances in Materials Science for Environmental and Energy Technologies IV - Materials Science and Technology 2014 Conference, MS and T 2014 -- 12 October 2014 through 16 October 2014 -- Pittsburgh -- 1160311
Journal of Ceramic Processing Research1
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Author: Ozturk,A.Subject: Conversion efficiency

Scholarly Output Search Results

Now showing 1 - 2 of 2
  • Thumbnail Image
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    Effect of Porosity on the Efficiency of Dssc Produced by Using Nano-Size Tio2 Powders
    (2014) Bilgin,N.; Park,J.; Ozturk,A.
    The effect of porosity on the energy conversion efficiency of dye-sensitized solar cells (DSSCs) prepared by using pastes formed by mixing 20 nm and 200 nm TiO2 particles in different ratios is investigated. XRD and SEM analysis have been done to investigate the microstructure of pastes. The energy conversion efficiency of DSSCs was determined by drawing complete current density-voltage curve. The DSSC prepared using the mixture composed of 40 wt% 20 nm and 60 wt% 200 nm TiO2 particles maintained best energy conversion efficiency of 6.74%. The energy conversion efficiency of the DSSCs prepared by using pastes based on the mixture of two different size of TiO 2 particles is much better than that of the DSSCs prepared by using pastes composed of either only 20 nm or only 200 nm of TiO2 particles. The improved energy conversion efficiency is attributed to the establishment of further porous structure that lets more dye absorption from the surface through interior which provides enhancement of light absorption and multiple scattering.
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    Conference Object
    Influence of Particle Size of Tio2 Powder on the Energy Conversion Efficiency of a Dye-Sensitized Solar Cell
    (2013) Bilgin,N.; Park,J.; Ozturk,A.
    Dye-sensitized solar cells (DSSCs) have been fabricated using a TiO2 paste composed of mixtures of 25 nm and 250 nm TiO2 particles at various ratios. A maximum energy conversion efficiency of 6.7% has been achieved using the DSSC, based on a TiO2 layer composed of 40 wt% 25 nm and 60 wt% 250 nm TiO2 particles. The short-circuit current density, open-circuit voltage, and filling factor of the cell were 12.95 mA, 0.82 V, and 0.63, respectively. The overall performance of the DSSCs based on TiO2 layers composed using a mixture of two different sized particles is much better than that of either only 25 nm or only 250 nm TiO2 particles. It is recognized that adding the larger particles to the small particles in the TiO2 paste increases the dye absorption and light scattering effects of DSSC, resulting in a higher short-circuit current density and improved energy conversion efficiency. © (2013) Trans Tech Publications, Switzerland.