01885nas a2200253 4500008004100000022001400041245008200055210006900137260010600206300001400312490000700326520094000333653003101273653004301304653001701347100002001364700001801384700002401402700002001426700002301446700002001469700002901489856011301518 2011 eng d a0038-092X00aEnhanced DSSC performance with high surface area thin anatase TiO2 nanoleaves0 aEnhanced DSSC performance with high surface area thin anatase Ti aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJUN a1213-12190 v853 a
Thin anatase TiO2 nanoleaves (NLs) with high surface area (similar to 93 m(2)/g) are synthesized by hydrothermal route and dye-sensitized solar cells (DSSC) made using such NLs are compared with those made with hydro-thermally synthesized TiO2 nanoparticles and the Degussa P25 powder. The NLs-based DSSCs show increment of 16% and 24% in the total conversion efficiency over the cells made with NPs and P25 respectively. Interestingly, the highest increment in the conversion efficiency (similar to 35%) is achieved for cells made using a 50:50 (wt/wt) mixture of NLs and NPs. In this case the dye loading is found to be >50% higher than the case of NP films. Moreover the DC resistance of diffusion of I-3(-) in electrolyte (as revealed by the electrochemical impedance spectroscopy) is substantially lower than the NP film case, other cell parameters being nominally comparable. (C) 2011 Elsevier Ltd. All rights reserved.
10aDye-sensitized solar cells10aElectrochemical impedance spectroscopy10ahydrothermal1 aDhas, Vivek, V.1 aMuduli, Subas1 aAgarkar, Shruti, A.1 aRana, Abhimanyu1 aHannoyer, Beatrice1 aBanerjee, Rahul1 aOgale, Satishchandra, B. uhttp://library.ncl.res.in/content/enhanced-dssc-performance-high-surface-area-thin-anatase-tio2-nanoleaves-0