Secondary Emission Spectra and Energy Relaxation of Polaritons in Layer Polar Semiconductors

Brodin, M. S.; Blonskii, I. V.; Gushcha, A. O.; Tishenko, V. V.

doi:10.1002/pssb.2221310223

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The crystal structure of the particles was determined using a X-ray diffractometer (XRD), Model PW-1820, operated at 40 kV and 40 mA, and monochromatized Cu Ka radiation. The XRD spectra were recorded over the 20 = 10°-60°, using a scanning speed of 0.4 deg/min.…”

Section: Methodsmentioning

confidence: 99%

Photodecomposition and Regeneration of PbI2 Nanometer-Sized Particles, Embedded in Porous Silica Films

Lifshitz¹,

Yassen²,

Bykov³

et al. 1995

J. Phys. Chem.

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The photoluminescence (PL) spectrum of nanometer-sized particles of PbI2, at 77 K, is dominated by an acceptor-like exciton emission. When the specimens were irradiated with visible light at temperature of 70 "C, the exciton energy was blue-shifted and its intensity decreased. This blue shift is a manifestation of a quantum size effect, and it indicates the reduction of the particle's size. The changes in the PL spectra showed strong dependence on the radiation conditions. These results suggest that the irradiation produces chemical decomposition of Pb-I bonds. Moreover, retreatment of the particles with iodine vapors nearly regenerated the original PbIz particle's size

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Section: Methodsmentioning

confidence: 99%

Photodecomposition and Regeneration of PbI2 Nanometer-Sized Particles, Embedded in Porous Silica Films

Lifshitz¹,

Yassen²,

Bykov³

et al. 1995

J. Phys. Chem.

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“…The exciton series has been interpreted in a number of conflicting ways. [6][7][8][9][10][11][12][13][14][15][16] Difficulties in the study of these lines are caused by their relatively large line width (2-5 meV), due partially to the considerable number of stacking faults, present even in the best quality samples, in addition to the large longitudinal-transverse splitting of the exciton.17 More detailed discussion of the luminescence is presented in section III.…”

Section: Introductionmentioning

confidence: 99%

Microwave modulated and thermal modulated photoluminescence studies of 2H-lead iodide

Lifshitz¹,

Bykov²

1993

J. Phys. Chem.

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Lead iodide, Pb12, is a layered semiconductor. The luminescence processes, of 2H-PbI2 single crystals, have been examined utilizing microwave modulated photoluminescence (MMPL) and thermal modulated photoluminescence (TMPL) spectroscopies. In the MMPL experiment, the microwaveelectric field induces a thermal heating of free carriers. The hot carriers effect on luminescence processes is discussed. On the basis of the experimental evidence, we suggest that the hot carriers influence the luminescence processes of excitons by reducing their cross section of formation. The TMPL experiments showed that thermal modulation has created a bolometric effect followed by equilibrium redistribution of carriers among the emitting states.

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Secondary Emission Spectra and Energy Relaxation of Polaritons in Layer Polar Semiconductors

Cited by 2 publications

References 6 publications

Photodecomposition and Regeneration of PbI2 Nanometer-Sized Particles, Embedded in Porous Silica Films

Photodecomposition and Regeneration of PbI2 Nanometer-Sized Particles, Embedded in Porous Silica Films

Microwave modulated and thermal modulated photoluminescence studies of 2H-lead iodide

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