Optics of Optics of Nanostructures: Nanostructures: Science, Technology, Science, Technology, Applications Applications Sergey V. Gaponenko Sergey V. Gaponenko Institute of Molecular and Institute of Molecular and Atomic Physics Atomic Physics National Academy of Sciencs of National Academy of Sciencs of Belarus Belarus
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Optics of Nanostructures: Science, Technology, Applications Sergey V. Gaponenko
Optics of Nanostructures: Science, Technology, Applications Sergey V. Gaponenko. Institute of Molecular and Atomic Physics National Academy of Sciencs of Belarus. Institute of Molecular and Atomic Physics. Established in 1992 (separated from th e Inst. Physics) - PowerPoint PPT Presentation
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Optics of Nanostructures:Optics of Nanostructures:Science, Technology, Science, Technology,
ApplicationsApplicationsSergey V. GaponenkoSergey V. Gaponenko
Institute of Molecular and Atomic Institute of Molecular and Atomic PhysicsPhysics
National Academy of Sciencs of National Academy of Sciencs of BelarusBelarus
Institute of Molecular and Institute of Molecular and Atomic PhysicsAtomic Physics
Established in 1992 (separated from the Inst. Physics)Staff: 160 total (30 Dr. of Sci, 70 Ph.D)Research topics:• Plasma physics and atomic spectroscopy• Molecular spectroscopy• Photobiophysics• Physics of nanostructures12 research laboratoriesJournal of Applied Spectroscopy publisher (since 1964)
Basic PrinciplesBasic Principles Photonic crystal ideologyPhotonic crystal ideology Quantum size effects in Quantum size effects in
Quantum size effects in Quantum size effects in semiconductor semiconductor nanocrystalsnanocrystals
Absorption
Lumi
nesc
ence
inten
sity (
a.u.)
Abso
rptio
n (lg
I0/I)
Wavelength (nm)400 600 800
0
1
2
3
4
5
Luminescence
CdS:Mn nanocrystals
Light convertor for Si photodetectorsLight convertor for Si photodetectorsMain advantage versus organic luminophores:Main advantage versus organic luminophores:
high photostabilityhigh photostability
300 350 400 450 500 550 600 650 700 750 8000.0
0.5
1.0
1.5
2.0
Si-photodetector withUV sensitive coating
Phot
ocur
rent
(A)
Wavelength (nm)
Principal publicationsPrincipal publicationsA. Kapitonov, A. Stupak, E. Petrov, A. Kapitonov, A. Stupak, E. Petrov, S. Gaponenko, A.Rogach, A. S. Gaponenko, A.Rogach, A. Eychmueller. Photoluminescence Eychmueller. Photoluminescence of CdTe nanocrystals in aqueous of CdTe nanocrystals in aqueous solution. solution. J. Phys. Chem. 103, 10109 (1999).J. Phys. Chem. 103, 10109 (1999).
M.Artemyev, A.Bibik, L.Gurinovich, M.Artemyev, A.Bibik, L.Gurinovich, S.Gaponenko, U.Woggon. Evolution S.Gaponenko, U.Woggon. Evolution from individual to collective from individual to collective electron states in a quantum dot electron states in a quantum dot ensemble. ensemble. Phys. Rev. B 60,1504-1506 (1999)Phys. Rev. B 60,1504-1506 (1999)
M. Artemyev, L. Gurinovich, A. M. Artemyev, L. Gurinovich, A. Stupak, S. GaponenkoStupak, S. Gaponenko. . Luminescence of CdS Luminescence of CdS Nanoparticles Doped with MnNanoparticles Doped with Mn. . PPhys. stat. sol. (b) 224, 191 (2001)hys. stat. sol. (b) 224, 191 (2001)
sec;sec; peak currentpeak current— 50 — 50 120 kA; 120 kA; plasma velocityplasma velocity — (3 — (3 7)x10 7)x1066 cm/sec; cm/sec; electron densityelectron density — 10— 101616 10 101818 cm cm-3-3;; plasma temperatureplasma temperature — 2 — 2 4 eV 4 eV
Regular surface structures formed on silicon Regular surface structures formed on silicon waferwafer
TasksTasks• Novel luminophores and efficient light Novel luminophores and efficient light
emitting devicesemitting devices
• Spectral transformers for silicon solar cells Spectral transformers for silicon solar cells and photodetectorsand photodetectors
• Ultrasensitive chemical analysisUltrasensitive chemical analysis
• Si surface processingSi surface processing
Optical data coding and security Optical data coding and security systemssystems
Spectral portraits of numbersSpectral portraits of numbers
Current projectsCurrent projects National program “Electronics”National program “Electronics” National program “Nanotechnologies”National program “Nanotechnologies” National program “Plasma dynamics”National program “Plasma dynamics” National Basic Res. Fnd. Projects (5)National Basic Res. Fnd. Projects (5) International INTAS projects (2 projects)International INTAS projects (2 projects) NATO for Peace projectNATO for Peace project Int. Sci. Techn. Center projectInt. Sci. Techn. Center project Volkswagen Shiftung projectVolkswagen Shiftung project Cooperaton agreement with Swiss Sherer InstituteCooperaton agreement with Swiss Sherer Institute European network of excellence “Nanophotonics”European network of excellence “Nanophotonics”