Dye sensitized solar cells based on hydrothermally grown TiO2 nanostars over nanorods

作者：Pawar Udayraj T; Pawar Sachin A; Kim Jin Hyeok^*; Patil Pramod S^*

来源：Ceramics International, 2016, 42(7): 8038-8043.

DOI：10.1016/j.ceramint.2016.01.212

• TiO2
• Nanostars
• DSSC
• Rutile
• Hydrothermal

A rutile titanium dioxide nanostar over nanorods is synthesized by a simple and cost-effective hydro thermal deposition method onto conducting glass substrates. In order to study the effect of precursor concentrations on the growth of TiO2, the amount of Ti precursor is varied from 0.1 mL to 0.5 mL at the interval of 0.1 mL. These TiO2 thin films are characterized for their morphological, structural, optical and J-V properties using various characterization techniques. SEM images showed the formation of densely packed nanostars over nanorods for 0.3 mL titanium tetraisopropoxide (TTIP). XRD patterns show the formation of polycrystalline TiO2 with tetragonal crystal structure possessing rutile phase. Further, the TiO2 thin films are used for dye sensitized solar cells using N3-dye.
The films were photoelectrochemically active and can be viewed as a promising application in DSSC with maximum current density of 1.459 mA/cm(2) with enhanced photovoltage of 696 mV for the sample prepared at 0.3 mL TTIP.

• 出版日期2016-5-15