Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Hans Kupka"'
Publikováno v:
The Journal of Physical Chemistry C. 115:22781-22788
Water-soluble 2- and 4-vinylpyridine terminated silicon quantum dots (SiQDs) with sizes between 2 and 3 nm were obtained by HF etching of oxidized SiQDs and subsequently passivating with vinylpyridine ligands via thermal hydrosilylation. The function
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab888370ab2ae23998034cc18e72fd3a
https://doi.org/10.1021/jp206495j
https://doi.org/10.1021/jp206495j
Autor:
Hans Kupka
Publikováno v:
Zeitschrift für Naturforschung A. 61:457-468
A function of two complex variables with two real parameters a and b is described, which generates a sequence of probability distributions of two integer variables m ≥ 0 and n ≥ 0. Closed expressions for the special b = 0 and general case b≠ 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e8cea42721372131e345431a5b0dd29
https://doi.org/10.1515/zna-2006-0904
https://doi.org/10.1515/zna-2006-0904
Autor:
Hans Kupka
Publikováno v:
Zeitschrift für Naturforschung A. 61:469-485
A previous theory of integer-valued probability distributions is extended to many dimensions, to develop a really systematic way of treating mode mixing. The mixing of the vibrational components arises through the rotation of the normal coordinates a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e22f891ed03f5442ab69ed003ef07e2a
https://doi.org/10.1515/zna-2006-0905
https://doi.org/10.1515/zna-2006-0905
Publikováno v:
The Journal of Chemical Physics. 102:9183-9190
A theoretical study of excitation energy transport among dipole–dipole interacting guests in mixed molecular crystals is carried out. To describe the temporal evolution of the excited state population, we derive a microscopic theory which treats an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5da69e22c1798faa7a0bce8c45f5d3f
https://doi.org/10.1063/1.468867
https://doi.org/10.1063/1.468867
Publikováno v:
The Journal of Chemical Physics. 97:1742-1749
The structural nature of the phonon sidebands in the fluorescence and excitation spectra of pentacene guests in p‐terphenyl crystals at 4.2 K are investigated using site‐selective spectroscopy. The distinct features in the phonon sideband structu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0534278be2b1cb27bd3ebced6fbaeec3
https://doi.org/10.1063/1.463161
https://doi.org/10.1063/1.463161
Publikováno v:
Journal of Luminescence. :381-384
In this paper the fluorescence spectrum of crystalline p-terphenyl at 4.2 K is analyzed by means of a lineshape calculation involving three Duschinsky coupled accepting modes which have been assigned to totally symmetric in-plane fundamentals. The la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ec0cdde5e7845de13c7b99f7a6475fa
https://doi.org/10.1016/0022-2313(91)90143-j
https://doi.org/10.1016/0022-2313(91)90143-j
Publikováno v:
Chemical Physics. 142:403-412
A nonlinear transformation between the normal coordinates of an initial bound state of a symmetric bent triatomic molecule and the scattering coordinates of a dissociative state is given. The transformation is appropriate for describing the initial p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a20ef7f2a6016a3e9bfb1424b7d34572
https://doi.org/10.1016/0301-0104(90)80035-v
https://doi.org/10.1016/0301-0104(90)80035-v
Autor:
Hans Kupka, Thomas Ledwig
Publikováno v:
Journal of Luminescence. 46:47-53
The lifetimes of T 1 (ππ ∗ )→S 0 phosphorescence in several representative DAPs in methanol/ethanol glasses at 77 K have been measured. The theory of radiationless transition, based on a combined spin-orbit and vibronic interaction and a multid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::997a76e00d9f682bab40f285fe497305
https://doi.org/10.1016/0022-2313(90)90081-l
https://doi.org/10.1016/0022-2313(90)90081-l
Publikováno v:
Chemical Physics. 117:163-169
Luminescence spectra of [ReCl6]2− doped in various cubic Rb2MCl6 (M = Te, Sn) host crystals have been measured at temperatures between 20 and 240 K. Excitation was obtained at different energy using various laser lines. The intensities of vibronic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e4f2fd2e20ee4ea8b62c0a811afc430
https://doi.org/10.1016/0301-0104(87)80105-2
https://doi.org/10.1016/0301-0104(87)80105-2
Autor:
Hans Kupka
Publikováno v:
Molecular Physics. 37:1673-1681
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0257b5bc92c05b5c9a7d5d78e839db20
https://doi.org/10.1080/00268977900101231
https://doi.org/10.1080/00268977900101231