. . . . "236660" . "10.1002/pssc.201000394" . "DE - Spolkov\u00E1 republika N\u011Bmecko" . . . "Pelant, Ivan" . . "P(IAA101120804), P(LC510), S, Z(AV0Z10100521), Z(MSM0021620834)" . . . "6"^^ . . "H\u00F6nerlange, B." . "8" . . "Ultrafast photoluminescence dynamics of blue-emitting silicon nanostructures"@en . . . "Gilliot, P." . . "[9CD036E1723C]" . . . "Ultrafast photoluminescence dynamics of blue-emitting silicon nanostructures" . "1"^^ . "Mal\u00FD, P." . "Ultrafast photoluminescence dynamics of blue-emitting silicon nanostructures"@en . "\u017D\u00EDdek, K." . "1862-6351" . "silicon; nanocrystals; time-resolved spectroscopy; luminescence; polarization; two-photon absorption"@en . "Ultrafast photoluminescence dynamics of blue-emitting silicon nanostructures" . "We report on ultrafast photoluminescence (PL) spectroscopy of blue and red-emitting silicon nanostrucures. We prepared samples of porous Si with different dominating PL bands in time-integrated PL spectrum. These samples show also striking differences in ultrafast PL dynamics. For the red-emitting samples we observe rapid PL onset followed by a two-exponential decay, which is spectrally dependent. For the blue-emitting porous Si the PL builds up several ps and decays mono-exponentially with spectrally independent PL rise and decay times. Our results indicate that a dominant part of the blue and red emission comes from two distinct species with different energy states structures. This is also supported by two-photon absorption induced PL measurements. The two-photon and one-photon absorption induced PL spectra, which are identical for the red-emitting samples, differ substantially for the blue-emitting ones."@en . "Troj\u00E1nek, F." . . "6"^^ . . "RIV/68378271:_____/11:00361260" . "We report on ultrafast photoluminescence (PL) spectroscopy of blue and red-emitting silicon nanostrucures. We prepared samples of porous Si with different dominating PL bands in time-integrated PL spectrum. These samples show also striking differences in ultrafast PL dynamics. For the red-emitting samples we observe rapid PL onset followed by a two-exponential decay, which is spectrally dependent. For the blue-emitting porous Si the PL builds up several ps and decays mono-exponentially with spectrally independent PL rise and decay times. Our results indicate that a dominant part of the blue and red emission comes from two distinct species with different energy states structures. This is also supported by two-photon absorption induced PL measurements. The two-photon and one-photon absorption induced PL spectra, which are identical for the red-emitting samples, differ substantially for the blue-emitting ones." . . . . "3" . . "RIV/68378271:_____/11:00361260!RIV12-AV0-68378271" . . . "Physica Status Solidi C: Current Topics in Solid State Physics" .