Items by Kovalev, Dmitry

Book Sections

Goller, B., Aliev, G. N., Kovalev, D. and Snow, P. A., 2008. The morphology of nanoporous silicon investigated by time-resolved measurement of changes to the porosity during dissolution. In: In-Situ Studies Across Spatial and Temporal Scales for Nanoscience and Technology. Vol. 1146. Warrendale: Materials Research Society, pp. 171-176. (Materials Research Society Symposium Proceedings)

Articles

Martins, G.F., Thompson, A. J. R., Goller, B., Kovalev, D. and Murphy, J.D., 2013. Fabrication of 'finger-geometry' silicon solar cells by electrochemical anodisation. Journal of Materials Science, 48 (7), pp. 2977-2985.

Amonkosolpan, J., Wolverson, D., Goller, B., Polisski, S., Kovalev, D., Rollings, M., Grogan, M. D. W. and Birks, T. A., 2012. Porous silicon nanocrystals in a silica aerogel matrix. Nanoscale Research Letters, 7, 397.

Goller, B., Kovalev, D. and Sreseli, O., 2011. Nanosilicon in water as a source of hydrogen: size and pH matter. Nanotechnology, 22 (30), 305402.

Goller, B. and Kovalev, D., 2011. Polarized red and blue light emission from silicon-based nanostructures correlated with crystallographic axes. Physical Review B, 83 (23), 233303.

Koynov, S., Pereira, R. N., Crnolatac, I., Kovalev, D., Huygens, A., Chirvony, V., Stutzmann, M. and De Witte, P., 2011. Purification of nano-porous silicon for biomedical applications. Advanced Engineering Materials, 13 (6), B225-B233.

Polisski, S., Goller, B., Heck, S. C., Maier, S. A., Fujii, M. and Kovalev, D., 2011. Formation of metal nanoparticles in silicon nanopores: Plasmon resonance studies. Applied Physics Letters, 98 (1), 011912.

Kovalev, D., 2010. Silicon photonics:moving into the red. Nature Nanotechnology, 5 (12), pp. 827-828.

Goller, B., Polisski, S., Wiggers, H. and Kovalev, D., 2010. Freestanding spherical silicon nanocrystals: A model system for studying confined excitons. Applied Physics Letters, 97 (4), 041110.

Goller, B., Polisski, S., Wiggers, H. and Kovalev, D., 2010. Silicon nanocrystals dispersed in water: Photosensitizers for molecular oxygen. Applied Physics Letters, 96 (21), 211901.

Polisski, S., Goller, B., Wilson, K., Kovalev, D., Zaikowskii, V. and Lapkin, A., 2010. In situ synthesis and catalytic activity in CO oxidation of metal nanoparticles supported on porous nanocrystalline silicon. Journal of Catalysis, 271 (1), pp. 59-66.

Aliev, G. N., Goller, B., Kovalev, D. and Snow, P. A., 2010. Hypersonic acoustic mirrors and microcavities in porous silicon. Applied Physics Letters, 96 (12), 124101.

Loponov, K., Goller, B., Moskalenko, A., Kovalev, D. and Lapkin, A., 2010. Efficiency of porous silicon photosensitizer in the singlet oxygen-mediated oxidation of organic compounds. Journal of Photochemistry and Photobiology A Chemistry, 211 (1), pp. 74-77.

Aliev, G. N., Goller, B., Kovalev, D. and Snow, P., 2010. Hypersonic acoustic mirrors and microcavities in porous silicon. Applied Physics Letters, 96, 124101.

Polisski, S., Goller, B., Lapkin, A. and Kovalev, D., 2009. Hybrid metal/silicon nanocomposite systems and their catalytic activity. Physica Status Solidi (C), 6 (7), pp. 1575-1579.

Aliev, G. N., Goller, B., Kovalev, D. and Snow, P., 2009. Porosity dependence of the acoustic longitudinal velocity in heavily doped P++ porous silicon layers. Physica Status Solidi (C), 6 (7), pp. 1670-1674.

Goller, B., Polisski, S. and Kovalev, D., 2009. Photoexcited silicon nanocrystals: mediators for the excitation of organic molecules. Physica Status Solidi (A), 206 (6), pp. 1295-1298.

Lapkin, A., Boddu, V. M., Aliev, G. N., Goller, B., Polisski, S. and Kovalev, D., 2008. Photo-oxidation by singlet oxygen generated on nanoporous silicon in a LED-powered reactor. Chemical Engineering Journal, 136 (2-3), pp. 331-336.

Goller, B., Polisski, S., Moskalenko, A., Loponov, K. and Kovalev, D., 2008. Photoexcited silicon nanocrystals as multifunctional spin-flip activator. ECS Transactions, 16 (3), pp. 337-344.

Polisski, S., Goller, B., Lapkin, A., Fairclough, S. and Kovalev, D., 2008. Synthesis and catalytic activity of hybrid metal/silicon nanocomposites. Physica Status Solidi: Rapid Research Letters, 2 (3), pp. 132-134.

Diener, J., Künzner, N., Gross, E., Kovalev, D., Timoshenko, V. Y. and Fujii, M., 2007. The birefringence level of anisotropically nanostructured silicon. Physica Status Solidi (C), 4 (6), pp. 1996-2000.

Fujii, M., Nishimura, N., Fumon, H., Hayashi, S., Akamatsu, K., Tsuruoka, T., Shimada, M., Katayama, H., Kovalev, D. and Goller, B., 2007. Photosensitization of oxygen molecules by surface-modified hydrophilic porous Si. European Physical Journal D, 43 (1-3), pp. 193-196.

Limaye, S., Subramanian, S., Goller, B., Diener, J. and Kovalev, D., 2007. Scaleable synthesis route for silicon nanocrystal assemblies. Physica Status Solidi A: Applications and Materials Science, 204 (5), pp. 1297-1301.

Goller, B., Polisski, S. and Kovalev, D., 2007. Spin-flip excitation of molecules mediated by photoexcited silicon nanocrystals. Physical Review B, 75 (7), 073403.

Chirvony, V., Chyrvonaya, A., Ovejero, J., Matveeva, E., Goller, B., Kovalev, D., Huygens, A. and de Witte, P., 2007. Surfactant-modified hydrophilic nanostructured porous silicon for the photosensitized formation of singlet oxygen in water. Advanced Materials, 19 (19), 2967-+.

Fujii, M., Nishimura, N., Fumon, H., Hayashi, S., Kovalev, D., Goller, B. and Diener, J., 2006. Dynamics of photosensitized formation of singlet oxygen by porous silicon in aqueous solution. Journal of Applied Physics, 100 (12).

Timoshenko, V. Y., Kudryavtsev, A. A., Osminkina, L. A., Vorontsov, A. S., Ryabchikov, Y. V., Belogorokhov, I. A., Kovalev, D. and Kashkarov, P. K., 2006. Silicon nanocrystals as photosensitizers of active oxygen for biomedical applications. Jetp Letters, 83 (9), pp. 423-426.

Timoshenko, V. Y., Shalygina, O. A., Lisachenko, M. G., Zhigunov, D. M., Teterukov, S. A., Kashkarov, P. K., Kovalev, D., Zacharias, M., Imakita, K. and Fujii, M., 2005. Erbium ion luminescence of silicon nanocrystal layers in a silicon dioxide matrix measured under strong optical excitation. Physics of the Solid State, 47 (1), pp. 121-124.

Kunzner, N., Diener, J., Gross, E., Kovalev, D., Timoshenko, V. Y. and Fujii, M., 2005. Form birefringence of anisotropically nanostructured silicon. Physical Review B, 71 (19).

Clement, D., Diener, J., Gross, E., Kunzner, N., Timoshenko, V. Y. and Kovalev, D., 2005. Highly explosive nanosilicon-based composite materials. Physica Status Solidi A: Applications and Materials Science, 202 (8), pp. 1357-1364.

Diener, J., Kunzner, N., Gross, E., Kovalev, D. and Fujii, M., 2005. Silicon based optical devices - photonic applications of anisotropically nanostructured silicon. Physica Status Solidi A: Applications and Materials Science, 202 (8), pp. 1432-1436.

Kovalev, D. and Fujii, M., 2005. Silicon nanocrystals: Photosensitizers for oxygen molecules. Advanced Materials, 17 (21), pp. 2531-2544.

Fujii, M., Usui, M., Hayashi, S., Gross, E., Kovalev, D., Kunzner, N., Diener, J. and Timoshenko, V. Y., 2005. Singlet oxygen formation by porous Si in solution. Physica Status Solidi A: Applications and Materials Science, 202 (8), pp. 1385-1389.

Fujii, M., Kovalev, D., Goller, B., Minobe, S., Hayashi, S. and Timoshenko, V. Y., 2005. Time-resolved photoluminescence studies of the energy transfer from excitons confined in Si nanocrystals to oxygen molecules. Physical Review B, 72 (16).

Wallacher, D., Kunzner, N., Kovalev, D., Knorr, N. and Knorr, K., 2004. Capillary condensation in linear mesopores of different shape. Physical Review Letters, 92 (19).

Fujii, M., Usui, M., Hayashi, S., Gross, E., Kovalev, D., Kunzner, N., Diener, J. and Timoshenko, V. Y., 2004. Chemical reaction mediated by excited states of Si nanocrystals - Singlet oxygen formation in solution. Journal of Applied Physics, 95 (7), pp. 3689-3693.

Heitmann, J., Muller, F., Yi, L. X., Zacharias, M., Kovalev, D. and Eichhorn, F., 2004. Excitons in Si nanocrystals: Confinement and migration effects. Physical Review B, 69 (19).

Fujii, M., Minobe, S., Usui, M., Hayashi, S., Gross, E., Diener, J. and Kovalev, D., 2004. Generation of singlet oxygen at room temperature mediated by energy transfer from photoexcited porous Si. Physical Review B, 70 (8).

Kovalev, D., Gross, E., Diener, J., Timoshenko, V. Y. and Fujii, M., 2004. Photodegradation of porous silicon induced by photogenerated singlet oxygen molecules. Applied Physics Letters, 85 (16), pp. 3590-3592.

Diener, J., Kunzer, N., Gross, E., Kovalev, D. and Fujii, M., 2004. Planar silicon-based light polarizers. Optics Letters, 29 (2), pp. 195-197.

Cazzanelli, M., Kovalev, D., Dal Negro, L., Gaburro, Z. and Pavesi, L., 2004. Polarized optical gain and polarization-narrowing of heavily oxidized porous silicon. Physical Review Letters, 93 (20).

Timoshenko, V. Y., Osminkina, L. A., Efimova, A. I., Golovan, L. A., Kashkarov, P. K., Kovalev, D., Kunzner, N., Gross, E., Diener, J. and Koch, F., 2003. Anisotropy of optical absorption in birefringent porous silicon. Physical Review B, 67 (11).

Kunzner, N., Gross, E., Diener, J., Kovalev, D., Timoshenko, V. Y. and Wallacher, D., 2003. Capillary condensation monitored in birefringent porous silicon layers. Journal of Applied Physics, 94 (8), pp. 4913-4917.

Gross, E., Kovalev, D., Kunzner, N., Diener, J., Polisski, G., Koch, F., Timoshenko, V. Y. and Bel'kov, V., 2003. Efficient light scattering by a liquid network confined in a porous matrix. Physica Status Solidi A: Applications and Materials Science, 197 (2), pp. 572-576.

Diener, J., Kunzner, N., Kovalev, D., Gross, E., Koch, F. and Fujii, M., 2003. Fine tuning of the dichroic behavior of Bragg reflectors based on anisotropically nanostructured silicon. Physica Status Solidi A: Applications and Materials Science, 197 (2), pp. 582-585.

Gross, E., Kovalev, D., Kunzner, N., Diener, J., Koch, F., Timoshenko, V. Y. and Fujii, M., 2003. Spectrally resolved electronic energy transfer from silicon nanocrystals to molecular oxygen mediated by direct electron exchange. Physical Review B, 68 (11).

Diener, J., Kunzner, N., Kovalev, D., Gross, E., Koch, F. and Fujii, M., 2002. Dichroic behavior of multilayer structures based on anisotropically nanostructured silicon. Journal of Applied Physics, 91 (10), pp. 6704-6709.

Kovalev, D., Gross, E., Kunzner, N., Koch, F., Timoshenko, V. Y. and Fujii, M., 2002. Resonant electronic energy transfer from excitons confined in silicon nanocrystals to oxygen molecules. Physical Review Letters, 89 (13).

Gross, E., Kovalev, D., Kunzner, N., Diener, J., Koch, F. and Fujii, M., 2002. Stimulated light emission in dense fog confined inside a porous glass matrix. Physical Review Letters, 89 (26).

Kovalev, D., Gross, E., Kunzner, N., Polisski, G., Koch, F., Timoshenko, V. Y. and Bel'kov, V., 2002. Strongly opalescent liquid network formed in a porous silicon matrix. Journal of Applied Physics, 91 (7), pp. 4131-4135.

Diener, J., Kunzner, N., Kovalev, D., Gross, E., Timoshenko, V. Y., Polisski, G. and Koch, F., 2001. Dichroic Bragg reflectors based on birefringent porous silicon. Applied Physics Letters, 78 (24), pp. 3887-3889.

Kunzner, N., Kovalev, D., Heckler, H., Diener, J., Polisski, G., Koch, F., Efros, A. L. and Rosen, M., 2001. Efficient photoluminescence upconversion in porous Si. Physica Status Solidi B-Basic Solid State Physics, 224 (1), pp. 21-23.

Diener, J., Kovalev, D., Heckler, H., Polisski, C. and Koch, F., 2001. Exciton states of silicon nanocrystals studied by magneto-optical spectral hole burning. Physical Review B, 6307 (7).

Kunzner, N., Kovalev, D., Diener, J., Gross, E., Timoshenko, V. Y., Polisski, G., Koch, F. and Fujii, M., 2001. Giant birefringence in anisotropically nanostructured silicon. Optics Letters, 26 (16), pp. 1265-1267.

Gross, E., Kovalev, D., Kunzner, N., Timoshenko, V. Y., Diener, J. and Koch, F., 2001. Highly sensitive recognition element based on birefringent porous silicon layers. Journal of Applied Physics, 90 (7), pp. 3529-3532.

Diener, J., Kovalev, D., Polisski, G. and Koch, F., 2001. Luminescence properties of two-photon excited silicon nanocrystals. Optical Materials, 17 Jun-Jul (1-2), pp. 117-120.

Diener, J., Kovalev, D., Polisski, G., Kunzner, N. and Koch, F., 2001. Morphology of porous silicon layers deduced from polarization memory experiments. Physica Status Solidi B-Basic Solid State Physics, 224 (1), pp. 297-300.

Kovalev, D., Heckler, H., Polisski, G., Diener, J. and Koch, F., 2001. Optical properties of silicon nanocrystals. Optical Materials, 17 Jun-Jul (1-2), pp. 35-40.

Golovan, L. A., Timoshenko, V. Y., Fedotov, A. B., Kuznetsova, L. P., Sidorov-Biryukov, D. A., Kashkarov, P. K., Zheltikov, A. M., Kovalev, D., Kunzner, N., Gross, E., Diener, J., Polisski, G. and Koch, F., 2001. Phase matching of second-harmonic generation in birefringent porous silicon. Applied Physics B-Lasers and Optics, 73 (1), pp. 31-34.

Diener, J., Kovalev, D. and Koch, F., 2001. Resonant excitation of interfacial Si-O: possibility of nonthermal processing. Microelectronic Engineering, 59 (1-4), pp. 291-294.

Tsybeskov, L., Grom, G. F., Krishnan, R., Montes, L., Fauchet, P. M., Kovalev, D., Diener, J., Timoshenko, V., Koch, F., McCaffrey, J. P., Baribeau, J. M., Sproule, G. I., Lockwood, D. J., Niquet, Y. M., Delerue, C. and Allan, G., 2001. Resonant tunneling in partially disordered silicon nanostructures. EPL (Europhysics Letters), 55 (4), pp. 552-558.

Kovalev, D., Timoshenko, V. Y., Kunzner, N., Gross, E. and Koch, F., 2001. Strong explosive interaction of hydrogenated porous silicon with oxygen at cryogenic temperatures. Physical Review Letters, 8706 (6).

Kovalev, D., Polisski, G., Diener, J., Heckler, H., Kunzner, N., Timoshenko, V. Y. and Koch, F., 2001. Strong in-plane birefringence of spatially nanostructured silicon. Applied Physics Letters, 78 (7), pp. 916-918.

Diener, J., Kovalev, D., Heckler, H., Polisski, G., Kunzner, N., Koch, F., Efros, A. L. and Rosen, M., 2001. Strong low-temperature anti-Stokes photoluminescence from coupled silicon nanocrystals. Optical Materials, 17 Jun-Jul (1-2), pp. 135-139.