Synthesis, characterization and application of sol-gel derived mesoporous TiO{sub 2} nanoparticles for dye-sensitized solar cells

Journal Article · Wed Dec 15 00:00:00 EST 2010 · Solar Energy

DOI:https://doi.org/10.1016/J.SOLENER.2010.08.008· OSTI ID:21396193

Khan, M Alam; Shaheer Akhtar, M; Yang, O-Bong ^[1]

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1. School of Semiconductor and Chemical Engineering, Chonbuk National University, Dukjin Dong, Dukjingu, Jeon-ju (Korea, Republic of)

Nanocrystalline mesoporous titania of anatase crystal phase were prepared by sol-gel route by varying calcination (400 C and 600 C) conditions, and the photo-electrochemical properties were investigated for dye-sensitized solar cell applications. The TTIP precursor in n-heptane solvent with ratio of water to TTIP (5:1) was found to be effective substrate for the working electrodes. The overall conversion efficiency of 7.59% was achieved under 1 sun irradiation with open circuit voltage of 0.77 V, current density of 17.00 mA/cm{sup 2} and FF of 51.12. The high efficiency of the 400 C calcined sample were attributed to its mesopores, high BET surface area (80.1 m{sup 2}/g) and large pore volume of prepared titania substrate which provide better surface for the absorption of dye, improves light harvesting efficiency and better charge injection. The prepared samples were characterized by XRD, small angle XRD, FE-SEM, TEM, IPCE, I-V curve, BET surface area and BJH plot techniques. (author)

• OSTI ID: 21396193
• Journal Information: Solar Energy, Vol. 84, Issue 12; Other Information: Elsevier Ltd. All rights reserved; ISSN 0038-092X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
TITANIUM OXIDES
SOLAR CELLS
CALCINATION
SURFACE AREA
NANOSTRUCTURES
SOL-GEL PROCESS
ELECTRIC CONDUCTIVITY
DYES
VISIBLE RADIATION
EFFICIENCY
ABSORPTION
CRYSTALS
DIAGRAMS
ELECTROCHEMISTRY
PARTICLES
SYNTHESIS
CURRENT DENSITY
ELECTRIC POTENTIAL
CONVERSION
ELECTRODES
SURFACES
POROUS MATERIALS
TEMPERATURE RANGE 0400-1000 K
Calcination temperature