luminescence

Emission of light by certain substances resulting from the absorption of energy (e.g. from electrical fields, chemical reaction, or other light), which is not due to a rise in temperature (unlike incandescence). The emitted radiation is characteristic of the particular substance. When the light emitted is due to exposure to a source of light the process is usually called photoluminescence. When the light emitted is due to either a high-frequency discharge through a gas, or to an electric field through certain solids such as phosphor which is used in fluorescent lamps, television picture tubes, etc., it is called electroluminescence. See bioluminescence; fluorescence; incandescence; fluorescent lamp; phosphorescence.

Mentioned in

luminescence

References in periodicals archive

Luth, "Photoluminescence and Intrinsic Properties of MBE-Grown InN Nanowires," Nano Letters, vol.

MBE Growth and Optical Properties of GaN, InN, and [A.sup.3][B.sup.5] Nanowires on SiC/Si(111) Hybrid Substrate

Caption: Figure 1: Photoluminescence images of two normal production solar cells (group 1) showing relatively uniform PL counts across the cell and only small reductions in the PL response in localised regions.

LEDs for the Implementation of Advanced Hydrogenation Using Hydrogen Charge-State Control

Caption: Figure 4: The photoluminescence (PL) emission spectrum of our GdV[O.sub.4]:Sm nanopowder sample (OPO excitation at 330 nm).

Orange-Reddish Light Emitting Phosphor GdV[O.sub.4]:[Sm.sup.3+] Prepared by Solution Combustion Synthesis

The absolute photoluminescence quantum yields were 4% for ternary C1 complex and 6% for tetrakis C2 complex in 1.5-[10.sup.-5]M THF solutions.

Study of thermal and optical properties of dibenzoylmethane Eu(III) organic complexes

Soldatkin, "Enzyme biosensor systems based on porous silicon photoluminescence for detection of glucose, urea and heavy metals," Biosensors and Bioelectronics, Vol.

Optical Biosensing and Bioimaging with Porous Silicon and Silicon Quantum Dots

The photoluminescence spectral changes, the integrated intensity, and maxima plots with the temperature range between 80 and 300 K of [alpha]-Alq powder, Alq/C18MPS-3.0, and Alq/P123MPS with the adsorbed amount of Alq at 131 and 91 [micro]mol/g, respectively, were shown in Figure S4 (Supplementary Material).

A Simple Incorporation Route of Tris(8-hydroxyquinoline)aluminum(III) into Transparent Mesoporous Silica Films and Their Photofunctions

Photoluminescence (PL) spectroscopy has extensively been used to study the optical possessions of Silisyum.

Synthesis and study on optical reflection and photoluminescent properties of Si[O.sub.2]/AgO nanocomposite

Further, the photoluminescence spectra of [Ca.sub.3][(B[O.sub.3]).sub.2] :[Bi.sup.3+] with different [Bi.sup.3+] doping concentrations were investigated.

Synthesis and photoluminescence study of [Bi.sup.3+] and [Pb.sup.2+] activated [Ca.sub.3][(B[O.sub.3]).sub.2]

Pineda, "Preparation, characterization, and photoluminescence study of PVA/ZnO nanocomposite films," Materials Chemistry and Physics, vol.

Effect of phosphoric acid concentration on the optical properties of partially phosphorylated PVA complexes

Photoluminescence (PL) measurements were performed at room temperature at an excitation wavelength of 355 nm using ps pulses, at a frequency repetition rate of 10 Hz, from a laser system PL2143A by EKSPLA.

Enhancing hydrogen diffusion in silica matrix by using metal ion implantation to improve the emission properties of silicon nanocrystals