جۆری توێژینه‌وه‌: Original Article

نوسه‌ران

1 Department of Physics, College of Science, University of Diyala, Diyala, Iraq

2 Department of Applied Science, University of Technology, Baghdad, Iraq

پوخته‌

In this work, DSSCs have been fabricated successfully using a simple
procedure without the need for any complicated facilities. The XRD analysis of the
TiO2 film confirmed that it has a polycrystalline structure belonging to anatase
phase with crystallite size of 12.4 nm. UV-Vis spectroscopy was used to
characterize the absorbance spectrum of the TiO2 film and Z907 dye. The energy
gap of the TiO2 film estimated by Tauc’s plot was 3.12 eV. The SEM micrograph of
the TiO2 film shows that the layer has a spongy shape with reduction in the number
of open pores making easy for dye adsorption and electron transport. The AFM
micrograph and the granularity cumulative distribution chart of the TiO2 film shows
that the average roughness, root mean square roughness and average grain size
were about 0.356 nm, 0.423 nm and 82.48 nm respectively. The DSSC fabricated
using glass substrates coated with 8 Ω/ sheet resistance FTO achieved the highest
short circuit density (JSC) and conversion efficiency (η) of 4.069 mA/cm2
and
1.786 %, respectively. Subsequently, the enhancement in efficiency was ~ 84 %
compared with the conversion efficiency of DSSC fabricated using glass substrates
coated with 15 Ω/ sheet resistance FTO.

وشه‌ بنچینه‌ییه‌كان

 

[1]         C. Cai, S. Tseng, M. Kuo, K. A. Lin, H. Yang, and R. Lee, "Photovoltaic Performance of N719 Dye based Dye-sensitized Solar Cell with Transparent Macroporous Anti-Ultraviolet Photonic Crystal Coatings", RSC Advances, Vol. 5, pp. 1-29, (2015).

[2]         N. A. Omair, S. M. Reda, F. M. Al-Hajri, "Effect of Organic Dye on the Photovoltaic Performance of Dye-Sensitized ZnO Solar Cell", Advances in Nanoparticles, Vol. 3, pp. 31-35, (2014).

[3]         J. Deenathayalan, M. Saroja, M. Venkatachalam, P. Gowthaman, "ZnO Nanorod based Dye Sensitized Solar Cells with Natural Dyes Extracted from AmaranthusCaudatus and Morus Alba", Journal of NanoScience and NanoTechnology, Vol. 2, No. 4, pp. 384-389, (2014).

[4]         A. Fakharuddin, R. Jose, T. M. Brown, F. F. Santiago, Juan Bisquert, "A perspective on the production of dye-sensitized solar modules", Energy Environmental Science, Vol. 7, pp. 3952–3981, (2014). 

[5]         A. A. Khafaji, D. B. Alwan, F. H. Ali, W. A. A. Twej, "Influence of grain size, electrode type and additives on dye sensitized solar cells efficiency", Environmental Science: An Indian Journal, Vol. 12, No. 6, pp. 217-223 (2016).

[6]         K. Guo, M. Li, X. Fang, X. Liu, B. Sebo, Y. Zhu, Z. Hu, X. Zhao, "Preparation and enhanced properties of dye-sensitized solar cells by surface plasmon resonance of Ag nanoparticles in nanocomposite photoanode", Journal of Power Sources, Vol. 230, pp. 155-160, (2013).

[7]         R. Tagliaferro, D. Colonna, T. M. Brown, A. Reale, A. D. Carlo, "Interplay between transparency and efficiency in dye sensitized solar cells", Optics Express, Vol. 21, No. 3, pp. 3235-3242, (2013).

[8]         R. Escalante, D. Pourjafari, D. Reyes-Coronado, G. Oskam, "Dye-sensitized solar cell scale-up: Influence of substrate resistance", Journal of renewable and sustainable energy, Vol. 8, No. 2, pp. 1-10, (2016).

[9]         F. Santiagoa, F, Bisquert, J, Palomares, E, Haque, S. A, Durrant, J. R, "Impedance spectroscopy study of dye-sensitized solar cells with undoped spiro-OMeTAD as hole conductor", Journal Appled Physics, Vol. 100, No. 3, pp. 1-7, (2006).

[10]     G. R. A. Kumara, C. S. K.Ranasinghe, E. N. Jayaweera, H. M. N. Bandara, M. Okuya, R. M. G. Rajapakse," Substrates by Atomized Spray Pyrolysis Technique and TheirSubsequent Use in Dye-Sensitized Solar Cells", The Journal of Physical Chemistry C, Vol. 118, No. 30, pp. 16479-16485, (2014).

[11]     M. L. M. Napi, M. F. Maarof, C. F. Soon, N. Nayan, F. I. M, Fazli, N. K. A. Hamed, S. M. Mokhtar, N. K. Seng, M. K. Ahmad, A. B. Suriani, A. Mohamed, "Fabrication of Fluorine Doped Tin Oxide (FTO) Thin Films Using Spray Pyrolysis De Method for Transparent Conducting Oxide", Journal of Engineering and Applied Sciences, Vol. 11, No. 14, pp. 8800-880, (2016).

[12]     S. Ngamsinlapasathian, A. Kitiyanan, T. Fujieda, and S. Yoshikawa,"Effect of Substrates on Dye-Sensitized Solar Cell Performance Using Nanocrystalline TiO2", ECS Transactions, Vol. 1, No. 33, pp. 7-15, (2006).

[13]     R. Vijayalakshmi and V. Rajendran, "Synthesis and characterization of nano-TiO2 via different methods", Archives of Applied Science Research, Vol. 4 (2), pp. 1183-1190, (2012).

[14]     Y. Wang, L. Li, X. Huang, Q. Lia and G. Li, "New insights into fluorinated TiO2 (brookite, anatase and rutile) nanoparticles as efficient photocatalytic redox catalysts", RSC Advances, Vol. 5, No. 43, pp. 34302-34313, (2015). 

[15]     C. H. Wei and C.M. Chang, "Polycrystalline TiO2 thin films with different thicknesses deposited on unheated substrates using RF magnetron sputtering", Materials Transactions, Vol. 52, No.3, pp. 554-559, (2011).

[16]     H. Sh. Wu, and Y. L. Wang, "Effects of annealing temperature on the structure and properties of TiO2 nanofilm materials", Advanced Materials Research, Vol. 531, pp. 203-206, (2012).