Zobrazeno 1 - 10
of 12
pro vyhledávání: '"D V, Talapin"'
Autor:
A. Ohlinger, D. V. Talapin, Jochen Feldmann, Thomas A. Klar, A. Biebersdorf, R. Dietmüller, Horst Weller
Publikováno v:
Applied Physics B. 93:239-243
Optical injection of electrons from CdSe nanocrystals into amorphous semiconductors can be used to optically control the electron density in trap-rich conduction bands. For the specific example of polycrystalline C60, we show that important parameter
Autor:
Andrey L. Rogach, R. M. Kraus, Pavlos G. Lagoudakis, D. V. Talapin, John M. Lupton, Jochen Feldmann, Josef Müller, Horst Weller
Publikováno v:
The Journal of Physical Chemistry B. 109:18214-18217
We study the interplay between Auger effects and ionization processes in the limit of strong electronic confinement in core/shell CdSe/ZnS semiconductor nanocrystal quantum dots. Spectrally resolved fluorescence decay measurements reveal a monotonic
Publikováno v:
Advanced Materials. 17:1436-1439
For the first time, polarized-light-emitting quantum-rod diodes have been successfully produced, using thin layers of quantum rods oriented by a rubbing technique. Diode emission at 620 nm with a luminance efficiency of 0.65 Cd A-1 and an external qu
Publikováno v:
Journal of Nanoscience and Nanotechnology. 4:115-120
Crystalline bacterial cell surface layers (S-layers) composed of identical protein units have been used as binding templates for well-organized arrangements of nanoparticles. Isolated S-layer proteins were recrystallized into monomolecular arrays on
Publikováno v:
Physical review letters. 102(7)
We fabricate a hybrid nanocrystal quantum-dot patterned p-i-n structure that utilizes nonradiative energy transfer from highly absorbing colloidal nanocrystal quantum dots to a patterned semiconductor slab to demonstrate a sixfold increase of the pho
Autor:
Jochen Feldmann, Pavlos G. Lagoudakis, John M. Lupton, Horst Weller, D. V. Talapin, R. M. Kraus, A. L. Rogach
Publikováno v:
ResearcherID
Spectrally resolved fluorescence decay measurements reveal a non-Auger like dependence of the photoluminescence decay rate with excitation density. Our results suggest that Auger recombination accelerates phonon assisted ionisation that lead to the f
Publikováno v:
2005 Quantum Electronics and Laser Science Conference.
Elongated asymmetric core-shell CdSe/CdS nanocrystals allow direct engineering of the electron-hole wavefunction interaction. Besides controlling the spontaneous emission rate this promotes the quantum confined Stark effect, providing insight into su
Publikováno v:
Advanced Materials. 17
Polarized-light-emitting quantum-rod diodes have been successfully produced using thin layers of quantum rods oriented by a rubbing technique, as shown on the inside cover. Hikmet and co-workers report on p. 1436 that diode emission at 620 nm with a
Autor:
Andrey L. Rogach, Horst Weller, D. V. Talapin, Jochen Feldmann, John M. Lupton, F. Saas, J. G. Müller
Publikováno v:
Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies.
Single particle measurements on a novel class of materials consisting of spherical CdSe cores surrounded by elongated CdS shells reveal unprecedented photophysical stability due to exceptional extinction coefficients as well as high quantum efficienc
Publikováno v:
MRS Proceedings. 771
Nanocrystalline semiconductor particles exhibit a size dependent bandgap emission, due to size quantisation effects. These particles are derived from solution chemistry and can be made monodisperse under the right synthesis conditions. Compared to or