Core–shell defective TiO<sub>2</sub> nanoparticles by femtosecond laser irradiation with enhanced photocatalytic performance
Bersu Baştuğ Azer, Ahmet Gülsaran, Joel R. Pennings, Reza Karimi, Aydin Ashrafi Belgabad, Alexander H. Xu, Liena Zaidan, Samed Kocer, Joseph Sanderson, Michal Bajcsy, Michael A. Pope, Mustafa Yavuz
Abstract
Herein, the authors present a new defect formation mechanism related to the laser wavelength. Short pulse width lasers only modify the surface layer, resulting in core-shell defective TiO 2 . Unlike long pulse lasers, the bulk of particles remains unchanged.
Topics & Concepts
Materials scienceLaserFemtosecondPhotocatalysisIrradiationCore (optical fiber)OptoelectronicsNanoparticleWavelengthShell (structure)Layer (electronics)OpticsNanotechnologyComposite materialChemistryCatalysisPhysicsBiochemistryNuclear physicsTiO2 Photocatalysis and Solar CellsLaser-Ablation Synthesis of NanoparticlesElectronic and Structural Properties of Oxides