IR Emission Band and Multiple-Peak Structure in Photoluminescence Spectra of SnO2:Mn

2013 ◽  
Vol 2 (9) ◽  
pp. R172-R177 ◽  
Author(s):  
Takaaki Arai ◽  
Sadao Adachi
Keyword(s):  
Emission Band ◽  
Photoluminescence Spectra ◽  
Multiple Peak ◽  
Peak Structure ◽  
Ir Emission

Multiple-peak structure in porous Si photoluminescence

2010 ◽  
Vol 107 (12) ◽  
pp. 123520 ◽  
Author(s):  
Yan Kai Xu ◽  
Sadao Adachi
Keyword(s):  
Porous Si ◽  
Multiple Peak ◽  
Peak Structure

High-energy proton drift echoes: Multiple peak structure

1984 ◽  
Vol 89 (A10) ◽  
pp. 9101 ◽  
Author(s):  
R. D. Belian ◽  
D. N. Baker ◽  
E. W. Hones ◽  
P. R. Higbie
Keyword(s):  
High Energy ◽  
High Energy Proton ◽  
Multiple Peak ◽  
Peak Structure ◽  
Energy Proton

Photoluminescence Spectra of Zn1-xCdxAl2Se4 Single Crystals

2000 ◽  
Vol 15 (4) ◽  
pp. 880-883 ◽  
Author(s):  
Seung-Cheol Hyun ◽  
Chang-Dae Kim ◽  
Tae-Young Park ◽  
Hyung-Gon Kim ◽  
Moon-Seog Jin ◽  
...  
Keyword(s):  
Single Crystals ◽  
Lattice Constant ◽  
Energy Band ◽  
Emission Band ◽  
Chalcopyrite Structure ◽  
Photoluminescence Spectra ◽  
Blue Emission Band ◽  
Optical Energy ◽  
Energy Gaps ◽  
Optical Energy Gaps

We investigated the photoluminescence spectra as well as the crystal structure and optical energy gaps of the Zn1-xCdxAl2Se4 single crystals grown by the chemical transport reaction method. It was shown from the analysis of the observed x-ray diffraction patterns that these crystals have a defect chalcopyrite structure for a whole composition. The lattice constant a increases from 5.5561 A for x = 0.0 (ZnAl2Se4) to 5.6361 A for x = 1.0 (CdAl2Se4) with increasing x, whereas the lattice constant c decreases from 10.8890 A for x = 0.0 to 10.7194 A for x = 1.0. The optical energy gaps at 13 K were found to range from 3.082 eV (x = 1.0) to 3.525 eV (x = 0.0). The temperature dependence of the optical energy gaps was well fitted with the Varshni equation. We observed two emission bands consisting of a strong blue emission band and a weak broad emission band due to donor–acceptor pair recombination in the Zn1-xCdxAl2Se4 for 0.0 ⩽ x ⩽ 1.0. These emission bands showed a red shift with increasing x. The energy band scheme for the radiative mechanism of the Zn1-xCdxAl2Se4 was proposed on the basis of the photoluminescence thermal quenching analysis along with the measurements of photo-induced current transient spectroscopy. The proposed energy band model permits us to assign the observed emission bands.

A self‐consistent multiple‐peak structure of the photoemission spectra of metallic Fe 2 p as a function of film thickness

2020 ◽  
Vol 52 (9) ◽  
pp. 591-599
Author(s):  
Alberto Herrera‐Gomez ◽  
Orlando Cortazar‐Martínez ◽  
Jesus‐Fernando Fabian‐Jocobi ◽  
Abraham Carmona‐Carmona ◽  
Joaquin‐Gerardo Raboño‐Borbolla ◽  
...  
Keyword(s):  
Film Thickness ◽  
Multiple Peak ◽  
Peak Structure ◽  
Self Consistent

Origin of multiple-peak photoluminescence spectra of light-emitting porous silicon

1994 ◽  
Vol 50 (16) ◽  
pp. 12230-12233 ◽  
Author(s):  
Xun Wang ◽  
Ping-hai Hao ◽  
Daming Huang ◽  
Fu-long Zhang ◽  
Min Yang ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Photoluminescence Spectra ◽  
Light Emitting ◽  
Multiple Peak

Direct observation of a multiple-peak structure in the Raman spectra of 74Ge and 70Ge nanocrystals

2013 ◽  
Vol 113 (4) ◽  
pp. 044312
Author(s):  
Shai Levy ◽  
Issai Shlimak ◽  
David H. Dressler ◽  
Tiecheng Lu
Keyword(s):  
Raman Spectra ◽  
Direct Observation ◽  
Multiple Peak ◽  
Peak Structure

Photoluminescence spectra of Zn1−xCdxAl2Se4-4xS4x single crystals

2000 ◽  
Vol 15 (12) ◽  
pp. 2690-2694 ◽  
Author(s):  
Sung-Hyu Choe ◽  
Chang-Sun Yoon ◽  
Moon-Seog Jin ◽  
Seung-Cheol Hyun ◽  
Chang Dae Kim ◽  
...  
Keyword(s):  
Single Crystals ◽  
Emission Band ◽  
Energy Gap ◽  
Visible Region ◽  
Chalcopyrite Structure ◽  
Broad Emission Band ◽  
Photoluminescence Spectra ◽  
Chemical Transport Reaction ◽  
Transport Reaction ◽  
Optical Energy

We investigated the photoluminescence as well as the crystal structure and optical energy gaps of the Zn1-xCdxAl2Se4-4xS4x solid solution system based on the Al-related compounds of ZnAl2Se4, ZnAl2S4, CdAl2Se4, and CdAl2S4. The single crystals of the system with 0.0 ≤ x ≤ 1.0 were grown by the chemical transport reaction technique. The Zn1-xCdxAl2Se4-4xS4x crystallizes in a defect chalcopyrite structure for a whole composition and has an optical energy gap ranging from 3.525 to 3.577 eV at 13 K. The photoluminescence spectra at 13 K showed a strong emission band in the blue spectral region and a weak broad emission band in the visible region due to donor–acceptor pair recombination. The composition and temperature dependence of these bands were examined in the investigated regions. The simple energy band scheme for the radiative mechanisms of the Zn1-xCdxAl2Se4-4xS4x is proposed on the basis of our experimental results along with photo-induced current transient spectroscopy measurements.

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