Abstract
An order-of-magnitude enhancement of the pulsed photocurrent in a polycrystalline diamond sample synthesized by chemical vapor deposition is observed under the conditions of formation of an electron–hole liquid. Nonequilibrium charge carriers are excited by laser pulses at a wavelength of 222 nm with FWHM pulse duration of 18 ns and peak intensity above 2.5 MW/cm2 upon cooling the sample to 90 K. For peak intensities of laser excitation lower than 1 MW/cm2, sample cooling from 300 to 90 K leads to a decrease in pulsed photocurrent by about a factor of 5. The observed increase in pulsed photocurrent is attributed to the formation of the electron–hole liquid.
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References
The Electron–Hole Drops in Semiconductors, in Modern Problems in Condensed Matter Sciences, Vol. 6, Ed. by C. D. Jeffries and L. V. Keldysh (North-Holland, Amsterdam, 1983; Nauka, Moscow, 1988).
I. Pelant and J. Valenta, Luminescence Spectroscopy of Semiconductors (Oxford Univ. Press, New York, 2012), p. 542
S. G. Tikhodeev, Sov. Phys. Usp. 28, 1 (1985).
A. A. Rogachev, in Handbook on Semiconductors, Vol. 1: Basic Properties of Semiconductors, Ed. by P. T. Landsberg (Elsevier Science, B.V., Amsterdam, 1992), p. 449.
K. Thonke, R. Schliesing, N. Teofilov, H. Zacharias, R. Sauer, A. M. Zaitsev, H. Kanda, and T. R. Anthony, Diamond Relat. Mater. 9, 428 (2000).
R. Shimano, M. Nagai, K. Horiuch, and M. Kuwata-Gonokami, Phys. Rev. Lett. 88, 057404 (2002).
M. Nagai, R. Shimano, K. Horiuchi, and M. Kuwata-Gonokami, Phys. Status Solidi B 238, 509 (2003).
M. Kozak, F. Trojanek, T. Popelar, and P. Maly, Diamond Relat. Mater. 34, 13 (2013).
R. Sauer, N. Teofilov, and K. Thonke, Diamond Relat. Mater. 13, 691 (2004).
E. I. Lipatov, D. E. Genin, and V. F. Tarasenko, Russ. Phys. J. 58, 911 (2015).
B. Deljanin, M. Alessandri, A. Peretti, and M. Astrom, Contrib. Gemol. 15, 1 (2015).
E. Anoikin, A. Muhr, A. Bennett, D. J. Twitchen, and H. de Wit, Proc. SPIE 9346, 93460T-1 (2015).
E. I. Lipatov, D. E. Genin, and V. F. Tarasenko, Opt. Spectrosc. 119, 918 (2015).
E. I. Lipatov, S. M. Avdeev, and V. F. Tarasenko, J. Lumin. 130, 2106 (2010).
S. Salvatori, E. Pace, M. C. Rossi, and F. Galluzzi, Diamond Relat. Mater. 6, 361 (1997).
V. S. Verkhovskii, M. I. Lomaev, A. N. Panchenko, and V. F. Tarasenko, Quantum Electron. 25, 5 (1995).
E. I. Lipatov and V. F. Tarasenko, Quantum Electron. 38, 276 (2008).
E. Lefeuvre, J. Achard, M. C. Castex, H. Schneider, C. Beuille, and A. Tardieu, Diamond Relat. Mater. 12, 642 (2003).
E. I. Lipatov, Candidate’s Dissertation in Mathematics and Physics (Tomsk, 2012), p. 159.
P. Gonon, S. Prawer, Y. Boiko, and N. Jamieson, Diamond Relat. Mater. 6, 860 (1997).
C. E. Nebel, A. Waltenspiel, M. Stutzmann, M. Paul, and L. Schafer, Diamond Relat. Mater. 9, 404 (2000).
C. E. Nebel, M. Stutzmann, F. Lacher, P. Koidl, and R. Zachai, Diamond Relat. Mater. 7, 556 (1998).
Y. S. Huo, X.-J. Gu, R. F. Code, and Y. G. Fuh, J. Appl. Phys. 59, 2060 (1986).
L. S. Pan, D. R. Kania, P. Pianetta, J. W. Ager III, M. I. Landstrass, and S. Han, J. Appl. Phys. 73, 2888 (1993).
L. Milazzo and A. Mainwood, Diamond Relat. Mater. 12, 658 (2003).
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Original Russian Text © E.I. Lipatov, D.E. Genin, V.F. Tarasenko, 2016, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2016, Vol. 103, No. 11, pp. 755–761.
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Lipatov, E.I., Genin, D.E. & Tarasenko, V.F. Pulsed photoconductivity in diamond upon quasi-continuous laser excitation at 222 nm at the formation of an electron–hole liquid. Jetp Lett. 103, 663–668 (2016). https://doi.org/10.1134/S0021364016110072
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DOI: https://doi.org/10.1134/S0021364016110072