Thermostimulated luminescence

The red PL band of PS can not only be excited by above bandgap photons, but also by an intense IR (1064 nm) pulse [Di6]. Such a thermostimulated luminescence is known for the case of glasses. This observation was attributed to PS having about 100 times the third-order nonlinear optical susceptibility of bulk Si, as discussed in Section 7.3. Multiphoton excitation of the red PL band by resonant pumping of the vibrational modes of surface groups like Si-O [Di4] or Si-H [Ch8] provided evidence for excitation modes that involve the porous skeleton surface. 

Similar effects were observed for the heterogeneous systems MgAl204/H2 and ZXO2IO2, for which a correlation between the rate of thermostimulated adsorption and the intensity of thermostimulated luminescence could be established (Fig. 5.22 Ryabchuk and Burukina, 1991 Emeline and Ryabchuk, 1998 Emeline et al, 1999c). 

In this case, the thermostimulated luminescence is caused by free charge-carrier trapping that accompanies emission of photons (reaction 5.82). 

Techniques such as differential thermal analysis, DSC, thermostimulated luminescence, electronic emission, conductivity, or polarization are based on the principle... 

L.A. Ploom, Radiation Colouring and Thermostimulating Luminescence of KC1 of Enchanced Purity, Coll. Inst. Phys. Astron. Est. SSR, Tartu 43 (1975) 81-89. 

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Tale lA (1981) Trap spectroscopy by the fi-actional glow technique. Phys Status Solidi A66 65-75 Tretyak OV, Skryshevsky VA, Vikulov VA, Boyko YV, Zinchuk VM (2003) Surface electronic states in metal-porous silicon-silicon structures. Thin Solid Films 445(1) 144-150 Trukhin AN, Troks J, Griscom DL (2007) Thermostimulated luminescence and electron spin resonance in X-ray- and photon-irradiated oxygen-deficient silica. J Non-Cryst Solids 353 1560-1566... 

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