Bio-fabrication of TiO2 Nanomaterials and Their Applications in Electronics Devices

Abstract

Nano-biotechnology deals with the role of biological species in the field of nanotechnology and has gained significant attention in the last few decades. Nano-sized materials have superior physical, chemical, optical, electrical and mechanical properties in comparison with the bulk materials. A number of techniques have been employed so far to synthesize nano-structured materials, and among these, bio-inspired methods are found to be economically viable and environmentally sustainable. Titanium dioxide (TiO 2 ) is one of the most abundant and nontoxic transition metal oxides with high thermal stability, good oxidation and corrosion resistance, good hydrophobicity and non-wettability. All these properties along with a wide band gap make TiO 2 an important material for various applications in the fields of solar cells, sensors, batteries, and supercapacitors. In this review work, a comprehensive study has been carried out on the synthesis of TiO 2 nanoparticles (NPs) using different biological extracts and applications of TiO 2 NPs in the design and development of various electronic devices. KeywordsTiO 2 NPs • bio-fabrication • solar cells • lithium-ion batteries • supercapacitor • sensor * Jagannath Roy

Nanostructured TiO2 Arrays for Energy Storage

“…Despite the inherent low area capacitance properties of TiO 2 , relatively high performance can be obtained by a range of methods [ 208 , 213 , 214 , 215 ]. Compositing with C materials [ 216 , 217 , 218 ], H 2 treatment [ 219 ], plasma treatment [ 220 ], electrochemical doping [ 221 , 222 , 223 ], and synthesizing black or blue TiO 2 [ 224 , 225 ], have also been performed to improve the conductivity and capacitances of TiO 2 nanoarrays.…”