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, M.I. (2011). Photocatalytic oxidation of ciprofloxacin under simulated sunlight. J. Hazard. Mater. 186(1), 751-755. DOI: 10.1016/j. jhazmat.2010.11.066. 43. Kuriechen, S.K., Murugesan, S., Raj, S.P. & Maruthamuthu, P. (2011). Visible light assisted photocatalytic mineralization of Reactive Red 180 using colloidal TiO2 and oxone. Chem. Eng. J. 174(2-3), 530-538. DOI: 10.1016/j.cej.2011.09.024. 44. Modirshahla, N., Hassani, A., Behnajady, M.A. & Rahbarfam, R. (2011). Effect of operational parameters on decolorization of Acid Yellow 23 from wastewater by UV

Abstract

The photovoltaic characterization of CdSe quantum dots sensitized solar cells (QDSSCs) by tuning band gap of CdSe quantum dots (QDs) through size control has been investigated. Fluorine doped tin oxide (FTO) substrates were coated with 20 nm in diameter TiO2 nanoparticles (NPs). Pre-synthesized colloidal CdSe quantum dots of different sizes (from 4.0 to 5.4 nm) were deposited on the TiO2-coated substrates using direct adsorption (DA) method. The FTO counter electrodes were coated with platinum, while the electrolyte containing I−/I3− redox species was sandwiched between the two electrodes. The current density-voltage (J-V) characteristic curves of the assembled QDSSCs were measured for different dipping times, and AM 1.5 simulated sunlight. The maximum values of short circuit current density (Jsc) and conversion efficiency (η) are 1.62 mA/cm2 and 0.29 % respectively, corresponding to CdSe QDs of size 4.52 nm (542 nm absorption edge) and of 6 h dipping time. The variation of the CdSe QDs size mainly tunes the alignment of the conduction band minimum of CdSe with respect to that of TiO2 surface. Furthermore, the Jsc increases linearly with increasing intensity of the sun light, which indicates the sensitivity of the assembled cells.

Engineering , vol. 3, no. 3, March 2013. [7] G. Cibira and M. Koščová, “Photovoltaic module parameters acquisition model”, Applied Surface Science , vol. 312, 2014, ISSN 0169-4332. [8] S. Weixiang, C. F. Hoong, W. Peng, L. P. Chiang and K. S. Yang, “Development of a mathematical model for solar module photovoltaic systems”, 6th IEEE International conference on industrial electronics and applications , Beijing, China, 2011, pp. 2056-2061. [9] E948-15, “Standard test method for electrical performance of PV cells using reference cells under simulated sunlight”, ASTM

: 330-337. Fuller, K.K., Loros, J.J. and Dunlap, J.C. 2015. Fungal photobiology: visible light as a signal for stress, space and time. Current Genetics, 61: 275-88. Ignoff o, C.M. and Garcia, C. 1992. Infl uence of conidial color on inactivation of several entomogenous fungi by simulated sunlight. Environmental Entomology, 21: 913-917. Isard, S.A., Gage, S.H., Comtois, P. and Russo, J.M. 2005. Principles of the atmospheric pathway for invasive species applied to soybean rust. Bioscience, 55: 851-861. Manners, J.G. 1966. Assessment of germination. In: MADELIN (ed) The