Radiative and Nonradiative Processes in Color Centers

1991 ◽  
pp. 219-259 ◽  
Author(s):  
G. Baldacchini
Keyword(s):  
Color Centers ◽  
Nonradiative Processes

Dynamics of positron-trapping color centers in alkali chloride crystals

1980 ◽  
Vol 41 (C6) ◽  
pp. C6-112-C6-115 ◽  
Author(s):  
W. Brandt ◽  
S. Stern
Keyword(s):  
Color Centers ◽  
Alkali Chloride ◽  
Positron Trapping

scholarly journals Stimulated Emission Depletion Microscopy with Color Centers in Hexagonal Boron Nitride

ACS Photonics ◽  
2021 ◽  
Author(s):  
Prince Khatri ◽  
Ralph Nicholas Edward Malein ◽  
Andrew J. Ramsay ◽  
Isaac J. Luxmoore
Keyword(s):  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Stimulated Emission ◽  
Color Centers ◽  
Stimulated Emission Depletion

Electron-Nuclear Double Resonance Studies of Color Centers

1962 ◽  
Vol 126 (4) ◽  
pp. 1421-1426 ◽  
Author(s):  
William T. Doyle
Keyword(s):  
Double Resonance ◽  
Color Centers ◽  
Electron Nuclear Double Resonance

scholarly journals Dynamic lattice distortions driven by surface trapping in semiconductor nanocrystals

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Burak Guzelturk ◽  
Benjamin L. Cotts ◽  
Dipti Jasrasaria ◽  
John P. Philbin ◽  
David A. Hanifi ◽  
...  
Keyword(s):  
Photon Energy ◽  
Semiconductor Nanocrystals ◽  
Atomic Scale ◽  
Atomistic Simulations ◽  
Shell System ◽  
Structural Distortions ◽  
Colloidal Semiconductor Nanocrystals ◽  
Femtosecond Electron Diffraction ◽  
Structural Deformations ◽  
Nonradiative Processes

AbstractNonradiative processes limit optoelectronic functionality of nanocrystals and curb their device performance. Nevertheless, the dynamic structural origins of nonradiative relaxations in such materials are not understood. Here, femtosecond electron diffraction measurements corroborated by atomistic simulations uncover transient lattice deformations accompanying radiationless electronic processes in colloidal semiconductor nanocrystals. Investigation of the excitation energy dependence in a core/shell system shows that hot carriers created by a photon energy considerably larger than the bandgap induce structural distortions at nanocrystal surfaces on few picosecond timescales associated with the localization of trapped holes. On the other hand, carriers created by a photon energy close to the bandgap of the core in the same system result in transient lattice heating that occurs on a much longer 200 picosecond timescale, dominated by an Auger heating mechanism. Elucidation of the structural deformations associated with the surface trapping of hot holes provides atomic-scale insights into the mechanisms deteriorating optoelectronic performance and a pathway towards minimizing these losses in nanocrystal devices.

Generation of laser radiation by color centers in diamond crystals (review)

2021 ◽  
Author(s):  
V. P. Mironov ◽  
E. A. Protasova ◽  
E. I. Lipatov ◽  
E. F. Martynovich
Keyword(s):  
Laser Radiation ◽  
Color Centers ◽  
Diamond Crystals

scholarly journals Near‐Field Energy Transfer between a Luminescent 2D Material and Color Centers in Diamond

2019 ◽  
Vol 3 (2) ◽  
pp. 1900088 ◽  
Author(s):  
Richard Nelz ◽  
Mariusz Radtke ◽  
Abdallah Slablab ◽  
Zai‐Quan Xu ◽  
Mehran Kianinia ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Near Field ◽  
Color Centers ◽  
Field Energy ◽  
2D Material

The Kinetics of the Radiative and Nonradiative Processes in Nanocrystalline ZnO Particles upon Photoexcitation

2000 ◽  
Vol 104 (8) ◽  
pp. 1715-1723 ◽  
Author(s):  
Addy van Dijken ◽  
Eric A. Meulenkamp ◽  
Daniël Vanmaekelbergh ◽  
Andries Meijerink
Keyword(s):  
Zno Particles ◽  
Kinetics Of ◽  
Nonradiative Processes

Formation of color centers in a thin layer of LiF crystals under VUV radiation from a barrier discharge

2014 ◽  
Vol 40 (5) ◽  
pp. 393-396 ◽  
Author(s):  
E. V. Milyutina ◽  
A. F. Petrovskii ◽  
A. L. Rakevich ◽  
E. F. Martynovich
Keyword(s):  
Thin Layer ◽  
Barrier Discharge ◽  
Color Centers

scholarly journals Mechanism of stimulated optical emission from MgO microcrystals with color centers

2009 ◽  
Vol 79 (16) ◽  
Author(s):  
T. Uchino ◽  
D. Okutsu ◽  
R. Katayama ◽  
S. Sawai
Keyword(s):  
Optical Emission ◽  
Color Centers
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