Abstract
Matrix-Assisted-Pulsed-Laser-Evaporation (MAPLE) has emerged as a very promising technique for the deposition of polymers and biopolymers in intact and functional form. However, our understanding of the mechanism of the procedure is still limited. Here, we examine laser-induced (248 nm) desorption from condensed CHCl3 solid, which has been employed as a potential matrix in MAPLE. We find that the absorption of the condensed halocarbon increases significantly with successive laser pulses, as a result of the formation and accumulation of strongly absorbing products. This results in a significant increase of the ejection efficiency in the irradiation with successive laser pulses. Thus, in studies employing multi-pulse irradiation protocols, the attained laser-induced temperatures are considerably higher than what is estimated on the basis of the absorption coefficient of CHCl3. Thus, contrary to previous suggestions, ablation of CHCl3 frozen solid at 248 nm may be due to explosive boiling. A number of additional implications are also discussed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. Domen, T.J. Chuang, Phys. Rev. Lett. 59, 1484 (1987)
W.C. Natzle, D. Padowitz, S.J. Sibener, J. Chem. Phys. 88, 7975 (1988)
J. Kutzer, G. Lindeke, K.H. Welge, D. Feldman, J. Chem. Phys. 90, 548 (1989)
K. Domen, T.J. Chuang, J. Chem. Phys. 90, 3318 (1989)
G.C. Weaver, S.R. Leone, Surf. Sci. 328, 197 (1995) and references therein
S. Georgiou, E. Mastoraki, E. Raptakis, Z. Xenidi, Laser Chem. 13, 113 (1993)
R. Braun, P. Hess, J. Chem. Phys. 99, 8330 (1993)
S. Georgiou, A. Koubenakis, P. Kontoleta, M. Syrrou, Chem. Phys. Lett. 260, 166 (1996)
S. Georgiou, A. Koubenakis, Chem. Rev. 103, 349 (2003)
D.B. Chrisey, A. Piqué, R.A. McGill, J.S. Horwitz, B.R. Ringeisen, D.M. Bubb, P.K. Wu, Chem. Rev. 103, 553 (2003) and references therein
D.M. Bubb, J.S. Horwitz, J.H. Callahan, R.A. McGill, E.J. Houser, D.B. Chrisey, M.R. Papantonakis, R.F. Hanglund Jr., M.C. Galicia, A. Vertes, J. Vac. Sci. Technol. A 19, 2698 (2001)
M.L. Popescu, R.M. Piticescu, S. Petrescu, L. Zdrentu, I. Mihailescu, G. Socol, W. Lojkowski, Rev. Adv. Mat. Sci. 8, 164 (2004)
B. Toftmann, K. Rodrigo, J. Schou, P. Roman, Appl. Surf. Sci. 247, 211 (2005)
A.L. Mercado, C.E. Allmond, J.G. Hoekstra, J.M. Fitz-Gerald, Appl. Phys. A 81, 591 (2005)
M.B. Robin, Higher Excited States of Polyatomic Molecules, vol. I (Academic, New York, 1974), pp. 147–150
S. Georgiou, A. Koubenakis, J. Labrakis, M. Lassithiotaki, J. Chem. Phys. 109, 8591 (1998)
C. Hubrich, F. Stuhl, J. Photochem. 12, 93 (1980)
E. Tschuikow-Roux, F. Faradji, S. Paddison, J. Niedzielski, K. Miyokawa, J. Phys. Chem. 92, 1488 (1988) and references therein
Z.B. Alfassi, S. Mosseri, P. Neta, J. Phys. Chem. 93, 1380 (1989)
O.V. Gendelman, L.I. Manevitch, J. Phys. Condens. Matter 5, 1633 (1993)
Y.G. Yingling, L.V. Zhigilei, B.J. Garrison, A. Koubenakis, J. Labrakis, S. Georgiou, Appl. Phys Lett. 78, 1631 (2001)
A. Koubenakis, J. Labrakis, S. Georgiou, Chem. Phys. Lett. 346, 54 (2001)
P.E. Dyer, D.M. Karnakis, Appl. Phys. A 59, 275 (1994)
CRC Handbook of Chemistry and Physics, 75th edn. (CRC Press, Boca Raton, 1995)
L.V. Zhigilei, E. Leveugle, B.J. Garrison, Y.G. Yingling, M.I. Zeifman, Chem. Rev. 103, 321 (2003)
C. Fosca, J.L. Destombes, Chem. Phys. Lett. 347, 390 (2001)
M. Sadeghi, A. Vertes, Appl. Surf. Sci. 127–129, 226 (1998)