Quantum size effects on CdTexS1−x semiconductor-doped glass
- 18 November 1991
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 59 (21) , 2715-2717
- https://doi.org/10.1063/1.105894
Abstract
We present experimental evidences of quantum confinement in borosilicate glasses with a new microcrystallite CdTexS1−x semiconductor. The microcrystallite sizes are controlled by the heat‐treatment time and temperature. Transmission electron microscopy measurements show the microcrystallites average diameters near 55 Å for the sample treated for the longest time. We observe a red shift from 570 to 640 nm in the absorption and photoluminescence spectra as the size increases. These shifts agree with the expected quantum‐confined energies, varying from 0.80 to 0.60 eV. The absorption spectra also show a second feature which can be assigned to the second quantum‐confined transition.Keywords
This publication has 15 references indexed in Scilit:
- Studies of high-speed optical switching in CdSeJournal of the Optical Society of America B, 1990
- Nonlinear Optical Properties of Quantum Confined Semiconductor MicrocrystallitesPhysica Status Solidi (b), 1990
- Third-order optical nonlinearities in semiconductor microstructuresPhysical Review B, 1988
- Efficient degenerate four-wave mixing in an ion-exchanged semiconductor-doped glass waveguideApplied Physics Letters, 1987
- Observation of optical bistability in CdSXSe_1−X-doped glasses with 25-psec switching timeOptics Letters, 1987
- Quantum confinement effects of semiconducting microcrystallites in glassJournal of Applied Physics, 1987
- Semiconductor-doped fibre waveguides exhibiting picosecond optical nonlinearityElectronics Letters, 1987
- Lattice dynamics of solid solutions in the cubic phasePhysical Review B, 1987
- Room-temperature excitonic nonlinear-optical effects in semiconductor quantum-well structuresJournal of the Optical Society of America B, 1985
- Degenerate four-wave mixing in semiconductor-doped glassesJournal of the Optical Society of America, 1983