photoluminescence


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Related to photoluminescence: fluorescence, electroluminescence

photoluminescence

(fō″tō-lū-mĭ-nĕs′ĕns) [″ + L. lumen, light]
The power of an object to become luminescent when acted on by light.

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.
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Luth, "Photoluminescence and Intrinsic Properties of MBE-Grown InN Nanowires," Nano Letters, vol.
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.
Caption: Figure 4: The photoluminescence (PL) emission spectrum of our GdV[O.sub.4]:Sm nanopowder sample (OPO excitation at 330 nm).
The PVP nanofiber mats show no photoluminescent while the PVP/C8 mats do exhibit a strong photoluminescence under both [[lambda].sub.ex] = 365 nm and [[lambda].sub.ex] = 254 nm excitation.
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.
Soldatkin, "Enzyme biosensor systems based on porous silicon photoluminescence for detection of glucose, urea and heavy metals," Biosensors and Bioelectronics, Vol.
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).
Photoluminescence (PL) spectroscopy has extensively been used to study the optical possessions of Silisyum.
Cavalcante et al., "Photoluminescence behavior in MgTiO3 powders with vacancy/distorted clusters and octahedral tilting," Materials Chemistry and Physics, vol.
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.
Pineda, "Preparation, characterization, and photoluminescence study of PVA/ZnO nanocomposite films," Materials Chemistry and Physics, vol.
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.