J Phys

Chem C 2012, 116:11426–11433 CrossRef 31 Lee JH,

J Phys

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paper: toward highly efficient quantu m-dot- and dye-sensitized solar cells. Curr Appl Phys 2013, 13:S2-S13.CrossRef 40. Goes MS, Joanni E, Muniz EC, Savu R, Habeck TR, Bueno PR, Fabregat-Santiago F: Impedance spectroscopy analysis of the effect of TiO 2 blocking layers on the efficiency of dye sensitized solar cells. J Phys Chem C 2012, 116:12415–12421.CrossRef 41. Fabregat-Santiago F, Garcia-Belmonte JB, Boschloo G, Hagfeldt A: STA-9090 datasheet Influence of electrolyte in transport and recombination in dye-sensitized solar cells studied by impedance spectroscopy. Sol Energ Mat Sol C 2005, 87:117–131.CrossRef 42. Fabregat-Santiago F, Bisquert J, Palomares E, Otero L, Kuang D, Zakeeruddin SM, Grätzel M: Correlation between photovoltaic performance and impedance spectroscopy of dye-sensitized solar cells based on ionic liquids. J Phys Chem C 2007, 111:6550–6560.CrossRef Competing interests The authors declare that they have no competing interests. Authors’ contributions CK carried out the overall scientific experiment and drafted the manuscript. HC and JIK performed the FE-SEM measurements. SL carried out the analysis of electrochemical impedance spectra. JK and SK participated in the manuscript revision.

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