The steady-state photoluminescence (PL) spectra of AgInSe 2 grown by the Hot-Press method have been examined. The broad peaks located at 1.19eV and 1.16eV are very likely to be the donor–acceptor-pair emissions. The energies of the donor levels participating in these emissions correspondingly...
A systematic investigation has been made on steady‐state and time‐resolved photoluminescence (PL) in microcrystalline silicon (μc‐Si) at liquid‐helium temperature. The steady‐state PL spectra on various grain sizes and volume fractions are examined. It is found that the low‐energy emission ...
We report steady-state and time-resolved photoluminescence (TRPL) measurements on individual GaN nanowires (6–20μmin length, 30–940 nm in diameter) grown by a nitrogen-plasma-assisted, catalyst-free molecular-beam epitaxy on Si(111) and dispersed onto fused quartz substrates. Induced tensile ...
A number of emission bands lying several tenths of an eV below the band gap have been observed in photoluminescence spectra of GaP crystals. These bands sh... M Gershenzon,FA Trumbore,RM Mikulyak,... - 《Journal of Applied Physics》 被引量: 74发表: 1965年 Donor-acceptor pair recombination...
What is Photoluminescence Spectroscopy Photoluminescence spectroscopy, often referred to as PL, is when light energy, or photons, stimulate the emission of a photon from any matter. mehr anzeigen Fluorescence What is Fluorescence? The term fluorescence refers to one type of luminescence. Luminescence, ...
Steady state photoluminescence (PL) spectra at different excitation densities and the time-delayed PL response are studied in order to extract the nature of the radiative transitions in the material. It is shown that the 2 K PL response of Cu-rich layers is dominated by two donor–acceptor ...
Raman spectraCdS x Se1−x nanoparticles or quantum dots (QDs) were grown in borosilicate glass by a two-step heat-treatment process from a melt-quenched color filter glass. We incorporate the results of optical absorption, steady-state photoluminescence (PL), and resonant Raman spectroscopies in...
We have studied the temperature dependence (10K-325K) of the photoluminescence emission spectra (PL) under pulsed and continuous excitation and photoluminescence excitation spectra (PLE) under steady-state conditions of PPV (poly(p-phenylene vinylene)) layers fabricated by spin-coated deposition onto ...
The UVvis absorption spectra and the photoluminescence (PL) spectra of the CdS nanocrystalline powders dispersed in DMF were studied. It was observed that with increase in concentration of the capping agent (BM), there is a shift in the nature of emission (PL) from trap associated PL to the...
The temperature dependence of absorption and photoluminescence (PL) spectra have been measured. From which the average phonon energy (electron-phonon interaction strength) is analyzed as around 34 (80), 47 (184), 50 (402), and 63 (758) with the unit of meV for OA2PbI4, ODAPbI4, BDA...