$$\hbox {TiO}_{2}$$ aerogel–metal organic framework nanocomposite: a new class of photoanode material for dye-sensitized solar cell applications
2018
$$\hbox {TiO}_{2}$$
aerogel–metal organic framework (MOF) nanocomposite was synthesized using sol–gel method followed by subcritical drying technique and employed as a photoanode material in quasi-solid dye-sensitized solar cells (DSSCs). The nanocomposite material showed a BET surface area of $$250\hbox { m}^{2}\hbox { g}^{-1}$$
with an average pore size of 5 nm. Field emission scanning electron microscopic images revealed the continuous arrangement of pore-solid network structure. Energy-dispersive X-ray analysis shows the presence of MOF clusters on $$\hbox {TiO}_{2}$$
aerogel network. X-ray photoelectron spectroscopic analysis also supports the presence of MOF clusters in the aerogel network and indicates the presence of some oxygen vacancies in the nanocomposite material. The $$\hbox {TiO}_{2}$$
aerogel–MOF nanocomposite was used as photoanode in DSSC and an overall power conversion efficiency 2.34% along with a short-circuit current density 6.22 mA
$$\hbox {cm}^{-2}$$
was achieved.
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