Solid-liquid phase transitions in CdTe crystals under pulsed laser irradiation

Gnatyuk, V. A.; Aoki, T.; Gorodnychenko, 0. S.; Hatanaka, Y.
November 2003
Applied Physics Letters;11/3/2003, Vol. 83 Issue 18, p3704
Academic Journal
Phase transitions in CdTe crystals irradiated with nanosecond KrF (248 nm) excimer laser pulses were investigated by a numerical simulation and time-resolved reflectivity method. By solving the time-dependent heat flow equation and taking into account the temperature dependences of semiconductor parameters, the time dependence of the surface temperature in a CdTe crystal was calculated as a function of laser pulse intensity. The dynamics of laser-induced melting was directly monitored by measurements of the reflection coefficient of a probe laser beam (532 nm). The melting and ablation thresholds have been determined as 2.5 and 7.3 MW/cm[sup 2], respectively. © 2003 American Institute of Physics.


Related Articles

  • Step bunching in the absence of an Ehrlich–Schwoebel barrier during nanowire growth. Golovin, A. A.; Davis, S. H.; Voorhees, P. W. // Journal of Applied Physics;Jan2010, Vol. 107 Issue 2, p024308 

    Step bunching at a growing crystal surface is usually attributed to the presence of the Ehrlich–Schwoebel (ES) effect caused by the asymmetry of the attachment kinetics at a step. Here, we show that, contrary to the case of rectilinear motion, step bunches at the solid-liquid interface of...

  • On the theory of electron transfer reactions at semiconductor electrode/liquid interfaces. Gao, Yi Qin; Yi Qui Gao; Georgievskii, Yuri; Marcus, R. A.; Marcus, R.A. // Journal of Chemical Physics;2/15/2000, Vol. 112 Issue 7 

    Electron transfer reaction rate constants at semiconductor/liquid interfaces are calculated using the Fermi Golden Rule and a tight-binding model for the semiconductors. The slab method and a z-transform method are employed in obtaining the electronic structures of semiconductors with surfaces...

  • PHYSICAL PROPERTIES OF AZOBISMALEIMIDE POLYMER FILMS. Fifere, N.; Homocianu, Mihaela; Airinei, A.; Gaina, C.; Gaina, Viorica; Tigoianu, R. I.; Hitruc, Gabriela Elena // Annals of the University Dunarea de Jos of Galati: Fascicle II, ;Special Issue, Vol. 34, p233 

    Thin films of poly(methyl methacrylate)/azobismaleimides (PMMA/BMI) have been prepared and characterized. The UV irradiated samples are compared with unirradiated ones to investigate the effect of photoirradiation on the surface characteristics. Properties of these samples such as photophysical...

  • A Slender Rivulet of a Power-Law Fluid Driven by Either Gravity or a Constant Shear Stress at the Free Surface. WILSON, S. K.; DUFFY, B. R.; HUNT, R. // Quarterly Journal of Mechanics & Applied Mathematics;Aug2002, Vol. 55 Issue 3, p385 

    Similarity solutions that describe the flow of a slender non-uniform rivulet of non-Newtonian power-law fluid down an inclined plane are obtained. Rivulets driven by either gravity or a constant shear stress at the free surface are investigated, and in both cases solutions are obtained for both...

  • Molecular dynamics studies of melting and some liquid-state properties of 1-ethyl-3-methylimidazolium hexafluorophosphate [emim][PF6]. Alavi, Saman; Thompson, Donald L. // Journal of Chemical Physics;4/15/2005, Vol. 122 Issue 15, p154704 

    Molecular dynamics simulations are used to study the liquid-state properties and melting of 1-ethyl-3-methylimidazolium hexafluorosphosphate [emim][PF6] using the force field of Canongia Lopes et al. [J. Phys. Chem. B 108, 2038 (2004)] and geometric constants from crystallographic data. The...

  • Percolation model of interfacial effects in polymeric glasses. Lipson, J. E. G.; Milner, S. T. // European Physical Journal B -- Condensed Matter;Nov2009, Vol. 72 Issue 1, p133 

    Recent observations using fluorophore probes of local dynamics in polymer films have provided new insight into the glass transition. Using a percolation model, we predict the local Tg in a polymer film, as a function of distance from a substrate or a free surface. Our predictions are in good...

  • A sessile drop setup for the time-resolved synchrotron study of solid-liquid interactions: Application to intermetallic formation in 55%Al-Zn alloys. Bernier, N.; Vaughan, G. B. M.; De Bruyn, D.; Vitoux, H.; De Craene, M.; Gleyzolle, H.; Gorges, B.; Scheers, J.; Claessens, S. // Applied Physics Letters;4/28/2014, Vol. 104 Issue 17, p1 

    We introduce a dedicated setup for measuring by synchrotron diffraction in-situ crystallographic and chemical information at the solid-liquid interface. This setup mostly consists of a double-heating furnace composed of a resistive heating for the solid surface and an inductive heating to...

  • Motion Planning of Solid-Liquid Interfaces in Crystal Growth Processes. Hinze, Michael; Ziegenbalg, Stefan // AIP Conference Proceedings;9/9/2009, Vol. 1168 Issue 1, p1055 

    We present an optimal control approach for the solidification process of a melt in a container. The process is described by a two phase Stefan problem including flow driven by convection and Lorentz forces. The free boundary (interface between the two phases) is modelled as a graph. We control...

  • Bridgman Solidification of Concentrated GaInSb Alloys with Variable Growth Rate. Stelian, C.; Mitric, A.; Corregidor, V.; Alves, L. C.; Barradas, N. P.; Duffar, T. // AIP Conference Proceedings;2004, Vol. 738 Issue 1, p415 

    Experimental works and numerical simulations on concentrated Ga1-xInxSb alloys directional solidification at high crucible pulling rates, show a damping solutal effect on the thermally driven convection which leads to a significant increase of the chemical heterogeneity of the sample and of the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics