摘要： [Display omitted] •Monodispersed TiO2 nanorods were prepared using a simple solvothermal process.•Solvothermal synthesis parameters were varied to obtain optimal conditions.•Rod shaped TiO2 was applied as photoanodes with different film thickness in DSSCs.•DSSC made using ∼14μm thick TiO2 film has obtained an efficiency of 9.21%. In this study, rod shaped TiO2 nanocrystals with excellent crystallinity were obtained by a simple solvothermal approach utilizing isopropyl alcohol without the use of any surfactants or capping agents. The solvothermal process parameters such as the concentration of titanium(IV) isopropoxide and volume of acetic acid were varied to reach optimal synthesis conditions to prepare well-defined and monodispersed TiO2 nanorods. The growth of rod shaped TiO2 nanocrystals has also been investigated by varying the solvothermal reaction durations and temperatures. TiO2 nanorods with various film thicknesses were used as photoanodes to fabricate dye-sensitized solar cells (DSSCs). A power conversion efficiency of 9.21% has been achieved for the DSSC fabricated using a TiO2 nanorod photoanode film with 14μm thickness. The high photovoltaic performance was attributed to the effective electron transfer of photogenerated electrons in TiO2 nanorod films with enhanced dye adsorption which was favored for efficient light harvesting ability. 出版者： Elsevier Ltd 出版日期： 2016-07-01 出處： Solar energy, 2016-07, Vol.132, p.310-320 版權： 2016 Elsevier Ltd 識別號： ISSN: 0038-092X 識別號： EISSN: 1471-1257 識別號： DOI: 10.1016/j.solener.2016.03.025
