Nonmonotonic excitation power dependence of the UV photoluminescence rate from large ZnO nanoparticle assemblies

2021 ◽  
Vol 26 ◽  
pp. 100734
Author(s):  
Oscar Marin ◽  
Gustavo Grinblat ◽  
Mónica Tirado ◽  
David Comedi
Keyword(s):  
Excitation Power ◽  
Zno Nanoparticle ◽  
Power Dependence ◽  
Nanoparticle Assemblies

Excitation Power Dependence of Photoluminescence in CIB and FIB Implanted Superlattices

1991 ◽  
Vol 240 ◽  
Author(s):  
A. G. Choo ◽  
H. E. Jackson ◽  
P. Chen ◽  
A. J. Steckl ◽  
V. Gupta ◽  
...  
Keyword(s):  
Focused Ion Beam ◽  
Ion Beam ◽  
Peak Position ◽  
Excitation Power ◽  
Excitation Intensity ◽  
Power Dependence ◽  
Photoluminescence Spectra ◽  
Multiple Scan ◽  
Donor Acceptor ◽  
Low Temperature Photoluminescence

ABSTRACTLow temperature photoluminescence spectra have been used to characterize conventional ion beam (CIB) and focused ion beam (FIB) implanted superlattices. The excitation dependence of the single scan FIB is found to be significantly different from CIB and multiple scan FIB implantations which are similar. The peak position of the donor-acceptor transition is observed to change to higher energies significantly slower with excitation intensity for the single scan FIB case when compared to the multiple scan FIB and CIB cases. Simple models to describe these effects are briefly discussed.

Formation of One-Dimensional Capped ZnO Nanoparticle Assemblies at the Air/Water Interface

Langmuir ◽  
2010 ◽  
Vol 26 (18) ◽  
pp. 14472-14478 ◽  
Author(s):  
Matthew P. Shortell ◽  
Hong-Wei Liu ◽  
Huaiyong Zhu ◽  
Esa A. Jaatinen ◽  
Eric R. Waclawik
Keyword(s):  
Zno Nanoparticle ◽  
Water Interface ◽  
One Dimensional ◽  
Nanoparticle Assemblies ◽  
Air Water Interface

Excitation Power Dependence of Al-Related Features in the LTPL Spectra of 4H-SiC

2005 ◽  
pp. 449-452 ◽  
Author(s):  
Marcin Zielinski ◽  
Carole Balloud ◽  
Sandrine Juillaguet ◽  
Bernard Boyer ◽  
Veronique Soulière ◽  
...  
Keyword(s):  
Excitation Power ◽  
Power Dependence

Excitation-Power Dependence of Free Exciton Photoluminescence of Semiconductors

2005 ◽  
Vol 44 (8) ◽  
pp. 6113-6114 ◽  
Author(s):  
Hajime Shibata ◽  
Masamichi Sakai ◽  
Akimasa Yamada ◽  
Koji Matsubara ◽  
Keiichiro Sakurai ◽  
...  
Keyword(s):  
Free Exciton ◽  
Excitation Power ◽  
Power Dependence

Excitation Power Dependence Of Photoluminescence From GaAs Quantum Dot Prepared By Droplet Epitaxy Method

2011 ◽  
Author(s):  
H. Y. Choi ◽  
D. Y. Kim ◽  
M. Y. Cho ◽  
G. S. Kim ◽  
S. M. Jeon ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Excitation Power ◽  
Droplet Epitaxy ◽  
Power Dependence ◽  
Gaas Quantum Dot

scholarly journals Superfluorescence from photoexcited semiconductor quantum wells: Magnetic field, temperature, and excitation power dependence

2015 ◽  
Vol 91 (23) ◽  
Author(s):  
Kankan Cong ◽  
Yongrui Wang ◽  
Ji-Hee Kim ◽  
G. Timothy Noe ◽  
Stephen A. McGill ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Wells ◽  
Excitation Power ◽  
Power Dependence ◽  
Semiconductor Quantum Wells ◽  
Field Temperature

DYNAMICS OF SPATIALLY INDIRECT EXCITONS IN SEMICONDUCTOR HETEROSTRUCTURES IN MAGNETIC FIELDS

2007 ◽  
Vol 21 (08n09) ◽  
pp. 1574-1578
Author(s):  
KAZUHITO UCHIDA ◽  
NOBORU MIURA ◽  
YASUHIRO SHIRAKI
Keyword(s):  
Magnetic Fields ◽  
Quantum Wells ◽  
Excitation Power ◽  
Semiconductor Heterostructures ◽  
Type Ii ◽  
Power Dependence ◽  
Indirect Excitons ◽  
Peak Energy ◽  
Excitation Laser ◽  
The Magnetic Field

Magnetophotoluminescence from spatially separated excitons in type-II semiconductor heterostructures, GaP/AlP neighboring confinement structures (NCSs) have been investigated. The sample studied consists of adjacent GaP and AlP quantum wells sandwiched between AlGaP barriers. The excitation power dependence and the well thickness dependence of the exciton PL are studied in magnetic fields applied perpendicular to the heterointerfaces. Compared to the thinner NCS, the magneto-PL of the wider NCS is strongly modified by the excitation power; the magnetic field dependence of the PL peak energy clearly changes from the anomalous red-shifts into the diamagnetic shifts with increasing excitation laser power.

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