Table 1

Laser ablation parameters and resultant phase assemblages of nonstoichiometric titanium oxides via PLAL
Sample number 1 2 3 4
1064 nm excitation FR FR QS QS
Pulsed energy (mJ/pulse) 900 1100 550 650
Pulse duration 0.24 ms 0.24 ms 16 ns 16 ns
Beam size (mm2) 0.03 0.03 0.03 0.03
Fluence (kJ/cm2) 3.0 3.7 1.8 2.2
Frequency (Hz) 10 10 10 10
Power density (107W/cm2) 13 15 1.1 × 104 1.4 × 104
Phases A < T1T2T3 A < T1T2T3 A > T1T2T3 A > T3
Assembly NCA NCA MWT MWT
Internal stress (GPa)* 5.2 5.5 4.2 4.5

FR free run mode, QSQ-switch mode, A amorphous phase, T1TiO, T2Ti2O3, T3TiO2, NCA nano chain aggregate, MWT multiple wall tube

* Based on SAED lattice parameter of the TiO2 nanocondensates and the Birch-Murnaghan equation of state of the rutile with relevant bulk modulus and its pressure derivative [45] (cf. text)

Huang et al.

Huang et al. Nanoscale Research Letters 2010 5:972-985   doi:10.1007/s11671-010-9591-4

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