Results 211 to 220 of about 124,796 (262)

Study of delocalized and localized states in ZnSeO layers with photoluminescence, micro-photoluminescence, and time-resolved photoluminescence

Journal of Applied Physics, 2019
In this work, we present a detailed investigation of the low temperature emission properties of ZnSeO alloys by means of photoluminescence, micro-photoluminescence, and time-resolved photoluminescence. We show that the low temperature broad photoluminescence spectrum of ZnSeO attributed to the recombination of localized excitons is composed of sharp ...
M. Wełna, M. Baranowski, R. Kudrawiec
openaire   +1 more source

Photoluminescence: Science and Applications

2007
In the past five years photoluminescence (PL) of SWNTs has gone from discoveryto one of the most actively researched areas, with broad impact on the basic scienceof SWNTs, as well as the promise of applications. The simplest free-carrier models ofperfect semiconducting SWNTs in vacuum predict that they have direct bandgapsand therefore should be ...
Finnie, Paul, Lefebvre, J., Maruyama, S.
openaire   +2 more sources

Photoluminescent Layered Lanthanide Silicates

Journal of the American Chemical Society, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Duarte, Ananias, Mariya, Kostova, Filipe A, Almeida Paz, Artur, Ferreira, Luís D, Carlos, Jacek, Klinowski, João, Rocha   +6 more
openaire   +2 more sources

Photoluminescence and photoluminescence excitation spectroscopy in ordered and disordered Ga0.52In0.48P

AIP Conference Proceedings, 1992
The band gap of Ga0.52In0.48P varies considerably, depending on conditions of growth. This is a result of ordering in the CuPt structure. Details of the ordering also lead to more subtle optical effects. We report here on photoluminescence (PL) and photoluminescence excitation (PLE) measurements on ordered and disordered Ga0.52In0.48P.
M. C. DeLong, R. A. Hogg, D. J. Mowbray, M. Hopkinson, M. S. Skolnick, P. C. Taylor, J. M. Olson, Sarah R. Kurtz, A. E. Kibbler   +8 more
openaire   +1 more source

Reciprocal-space analysis of photoluminescence and photoluminescence excitation spectra

Applied Physics Letters, 1996
We show that energy positions of features in photoluminescence and photoluminescence excitation (PLE) spectra can be obtained more accurately by Fourier transforming segments of these spectra and analyzing the resulting coefficients in reciprocal space than by using conventional real-space analysis.
S. D. Yoo, D. E. Aspnes, S. J. Rhee, J. C. Woo   +3 more
openaire   +1 more source

Photoluminescence of SrS:Cu phosphors

Solid State Communications, 1978
Abstract Results of the investigation on the spectral characteristics of PL of SrS:Cu phosphors are presented. Probable emitters for the three observed bands, viz. 4710 A, 5200 A and 5480 A, have been suggested.
B.B. Laud, V.W. Kulkarni
openaire   +1 more source

Photoluminescence in CuGaSe2

Solid-State Electronics, 1978
Abstract The photoluminescence spectra of CuGaSe2 have been investigated at 76 K in the range 0.65 3 4 m grating monochromator. The luminescence observed consisted of a rather sharp structure near the energy gap, plus two broad peaks at considerably smaller energies.
M.P. Vecchi, J. Ramos, W. Giriat
openaire   +1 more source

The Photoluminescence of Flames

Physical Review, 1923
Effect of light on the intensity of the flame spectra of Li, Na, Ca, and Sr.---The salted flame of an air-hydrogen blast lamp was illuminated with the full light from a tungsten lamp, a carbon arc, a mercury arc and an iron spark, and the intensity of the bands or lines emitted, as determined by a photometric balance method in connection with a ...
E. L. Nichols, H. L. Howes
openaire   +1 more source

Photoluminescence

2021
openaire   +2 more sources

Understanding Transient Photoluminescence in Halide Perovskite Layer Stacks and Solar Cells

Advanced Energy Materials, 2021
Lisa Krückemeier, Benedikt Krogmeier, Thomas Kirchartz   +2 more
exaly