Wavefunction engineering in core-shell semiconductor nanocrystals: from fine-tuned exciton dynamics and suppressed Auger recombination to dual color electroluminescence

2012 ◽  
Author(s):  
Sergio Brovelli ◽  
Florencio García-Santamaría ◽  
Ranjani Viswanatha ◽  
Bhola N. Pal ◽  
Scott A. Crooker ◽  
...  
Keyword(s):  
Auger Recombination ◽  
Semiconductor Nanocrystals ◽  
Core Shell ◽  
Exciton Dynamics ◽  
Dual Color

Biexciton Auger Recombination in CdSe/CdS Core/Shell Semiconductor Nanocrystals

Nano Letters ◽  
2016 ◽  
Vol 16 (4) ◽  
pp. 2503-2511 ◽  
Author(s):  
Roman Vaxenburg ◽  
Anna Rodina ◽  
Efrat Lifshitz ◽  
Alexander L. Efros
Keyword(s):  
Auger Recombination ◽  
Semiconductor Nanocrystals ◽  
Core Shell

scholarly journals Nano-engineered electron–hole exchange interaction controls exciton dynamics in core–shell semiconductor nanocrystals

2011 ◽  
Vol 2 (1) ◽  
Author(s):  
S. Brovelli ◽  
R.D. Schaller ◽  
S.A. Crooker ◽  
F. García-Santamaría ◽  
Y. Chen ◽  
...  
Keyword(s):  
Exchange Interaction ◽  
Semiconductor Nanocrystals ◽  
Core Shell ◽  
Electron Hole ◽  
Exciton Dynamics

scholarly journals Dual‐Color Emission from Monolithic m ‐Plane Core–Shell InGaN/GaN Quantum Wells

2021 ◽  
pp. 2000148
Author(s):  
Akanksha Kapoor ◽  
Vincent Grenier ◽  
Eric Robin ◽  
Catherine Bougerol ◽  
Gwénolé Jacopin ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Core Shell ◽  
Dual Color ◽  
Color Emission

Review of the Synthetic Chemistry Involved in the Production of Core/Shell Semiconductor Nanocrystals

2007 ◽  
Vol 60 (7) ◽  
pp. 457 ◽  
Author(s):  
Joel van Embden ◽  
Jacek Jasieniak ◽  
Daniel E. Gómez ◽  
Paul Mulvaney ◽  
Michael Giersig
Keyword(s):  
Semiconductor Nanocrystals ◽  
Critical Role ◽  
Charge Carriers ◽  
Core Shell ◽  
Synthetic Chemistry ◽  
Shell Material ◽  
Growth Processes ◽  
Passivating Layer ◽  
Spectral Shifts

Passivation of CdSe semiconductor nanocrystals can be achieved by overcoating the particles with a homogeneous shell of a second semiconductor. Shell layers are grown in monolayer steps to ensure homogeneous growth of the shell. The relative band edges of the two materials determine the photoreactiveity of the resultant core-shell nanocrystals. The critical role of ligands in minimizing nucleation of the shell material during the growth of the passivating layer is emphasized. The delocalization of charge carriers into the shell layers can be followed spectroscopically during the growth processes. The relative spectral shifts are directly correlated to the relative energies of the band edges.

A combination of an organic alloy and a heterojunction towards a rod–tail helix architecture with dual-color-emitting properties

Nanoscale ◽  
2020 ◽  
Vol 12 (31) ◽  
pp. 16414-16419 ◽  
Author(s):  
Hongyang Zhang ◽  
Haitao Wang ◽  
Peng-Cheng Qian ◽  
Wai-Yeung Wong
Keyword(s):  
Shell Structure ◽  
Core Shell ◽  
Assembly Process ◽  
Dual Color ◽  
Core Shell Structure

An unprecedented core–shell structure was constructed by a co-assembly process. The organic alloy BA0.72BN0.28 can deposit on the BA rod via a solution-epitaxy first and then spread out at the tip by turning it into its original helical morphology.

Effect of Quantum and Dielectric Confinement on the Exciton−Exciton Interaction Energy in Type II Core/Shell Semiconductor Nanocrystals

Nano Letters ◽  
2007 ◽  
Vol 7 (1) ◽  
pp. 108-115 ◽  
Author(s):  
Andrei Piryatinski ◽  
Sergei A. Ivanov ◽  
Sergei Tretiak ◽  
Victor I. Klimov
Keyword(s):  
Interaction Energy ◽  
Semiconductor Nanocrystals ◽  
Core Shell ◽  
Type Ii ◽  
Exciton Interaction

Absorption cross sections and Auger recombination lifetimes in inverted core-shell nanocrystals: Implications for lasing performance

2006 ◽  
Vol 99 (3) ◽  
pp. 034309 ◽  
Author(s):  
J. Nanda ◽  
S. A. Ivanov ◽  
H. Htoon ◽  
I. Bezel ◽  
A. Piryatinski ◽  
...  
Keyword(s):  
Cross Sections ◽  
Auger Recombination ◽  
Core Shell ◽  
Absorption Cross ◽  
Recombination Lifetimes

Auger recombination as a probe of the Mott transition in semiconductor nanocrystals

2000 ◽  
Vol 76 (20) ◽  
pp. 2850-2852 ◽  
Author(s):  
P. Němec ◽  
P. Malý ◽  
M. Nikl ◽  
K. Nitsch
Keyword(s):  
Auger Recombination ◽  
Semiconductor Nanocrystals ◽  
Mott Transition
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