A Review on the Progress of Optoelectronic Devices Based on TiO2 Thin Films and Nanomaterials

Abstract

Titanium dioxide (TiO2) is a kind of wide-bandgap semiconductor. Nano-TiO2 devices exhibit size-dependent and novel photoelectric performance due to their quantum limiting effect, high absorption coefficient, high surface-volume ratio, adjustable band gap, etc. Due to their excellent electronic performance, abundant presence, and high cost performance, they are widely used in various application fields such as memory, sensors, and photodiodes. This article provides an overview of the most recent developments in the application of nanostructured TiO2-based optoelectronic devices. Various complex devices are considered, such as sensors, photodetectors, light-emitting diodes (LEDs), storage applications, and field-effect transistors (FETs). This review of recent discoveries in TiO2-based optoelectronic devices, along with summary reviews and predictions, has important implications for the development of transitional metal oxides in optoelectronic applications for researchers.

Impact of Copper(II)-Imidazole Complex Modification on Polycrystalline TiO2: Insights into Formation, Characterization, and Photocatalytic Performance

“…The photocatalytic degradation of RhB displayed a time-dependent trend, with the Cu(II)-complex grafted TiO 2 exhibiting faster degradation kinetics compared to the pristine TiO 2 . This enhanced photocatalytic efficiency was attributed to the material's ability to efficiently harness visible light, leading to the generation of reactive oxygen species (ROS) that effectively degraded the RhB dye [67,68].…”

Tuning Visible-to-Near Infrared Dual-Band Emission in ZnO@β-SiC Composite Phosphor

“…The development of composites with excellent optical functionalities and stability has recently attracted significant interest to overcome the limitations. Some promising materials like ZnO, WO 3 , MgO, TiO 2 , SnO 2 , Ga 2 O 3 , GaN, etc. have been studied for the last few decades in various optoelectronic devices.…”

Surface sensitization of g-C3N4/TiO2via Pd/Rb2O co-catalysts: accelerating water splitting reaction for green fuel production in the absence of organic sacrificial agents

“…22 TiO 2 is the most promising thermodynamically efficient photocatalyst and is widely employed due to its low cost and long-term stability. 23,24 In TiO 2 the valence band originated from the overlap of the oxygen atom's 2p orbitals and the conduction band by 3d orbitals of Ti 4+ . 25 TiO 2 can be only activated in the UV region due to its higher energy band gap.…”