scholarly journals Exploring size and state dynamics in CdSe quantum dots using two-dimensional electronic spectroscopy

2014 ◽  
Vol 140 (8) ◽  
pp. 084701 ◽  
Author(s):  
Justin R. Caram ◽  
Haibin Zheng ◽  
Peter D. Dahlberg ◽  
Brian S. Rolczynski ◽  
Graham B. Griffin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Spectroscopy ◽  
Cdse Quantum Dots ◽  
Two Dimensional

Fifth-order two-quantum absorptive two-dimensional electronic spectroscopy of CdSe quantum dots

2020 ◽  
Vol 153 (23) ◽  
pp. 234703
Author(s):  
Patrick Brosseau ◽  
Samuel Palato ◽  
Hélène Seiler ◽  
Harry Baker ◽  
Patanjali Kambhampati
Keyword(s):  
Quantum Dots ◽  
Electronic Spectroscopy ◽  
Cdse Quantum Dots ◽  
Two Dimensional ◽  
Fifth Order

Ultrafast fs coherent excitonic dynamics in CdSe quantum dots assemblies addressed and probed by 2D electronic spectroscopy

2021 ◽  
Vol 154 (1) ◽  
pp. 014301
Author(s):  
Elisabetta Collini ◽  
Hugo Gattuso ◽  
R. D. Levine ◽  
F. Remacle
Keyword(s):  
Quantum Dots ◽  
Electronic Spectroscopy ◽  
Cdse Quantum Dots

The shape evolution process of two-dimensional CdSe nanocrystals altered by seed concentration

2020 ◽  
Vol 44 (25) ◽  
pp. 10633-10637
Author(s):  
Jun Zhang ◽  
Zhenrong Liu ◽  
Huifang Wang ◽  
Fang Wang ◽  
Hao Wu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Lattice Defect ◽  
Evolution Process ◽  
Cdse Nanocrystals ◽  
Cdse Quantum Dots ◽  
Shape Evolution ◽  
Two Dimensional ◽  
Defect Content

The content of CdSe quantum dots induced a change of shape and lattice defect content in CdSe 2D nanocrystals.

HIGHLY ORDERED MICRO-ARRAYS OF CdSe QUANTUM DOTS ON CHEMICALLY PATTERNED SUBSTRATES

2009 ◽  
Vol 08 (01n02) ◽  
pp. 119-122
Author(s):  
LI ZHANG ◽  
HUA-YAN SI ◽  
HUA XU ◽  
HAO-LI ZHANG ◽  
YU-QING XIONG
Keyword(s):  
Quantum Dots ◽  
Cadmium Selenide ◽  
Self Assembly ◽  
Microcontact Printing ◽  
Cdse Quantum Dots ◽  
Two Dimensional ◽  
Liquid Interfaces ◽  
Patterned Substrates ◽  
Cdse Qds ◽  
Ordered Arrays

Highly ordered arrays consisting uniform fluorescent cadmium selenide ( CdSe ) quantum dots (QDs) ring or dot structures were obtained by self-assembly of QDs on chemically patterned substrates. In this method, Au substrates with alternating hydrophobic and hydrophilic square patterns are firstly fabricated by microcontact printing, which allows water droplets to condense on the hydrophilic regions to provide two-dimensional template arrays. The CdSe QDs are then assembled at the liquid/liquid interfaces to give uniform micro or nanostructures. The shape and size of the rings and dots can be tailored by controlling the relative evaporation speed of the water and the organic solvents. The obtained nanostructures have ideal topography to avoid substrate-induced fluorescence quenching.

scholarly journals Spontaneous Emission Enhancement of CdSe Quantum Dots Embedded in a Two-dimensional Photonic Crystal L3 Nanocavity

2021 ◽  
Vol 9 (2) ◽  
pp. 38-41
Author(s):  
Khalid N. Sediq
Keyword(s):  
Quantum Dots ◽  
Photonic Crystal ◽  
Spontaneous Emission ◽  
Quantum Electrodynamics ◽  
Cavity Quantum Electrodynamics ◽  
Cdse Quantum Dots ◽  
Two Dimensional ◽  
Cdse Qds ◽  
Dimensional Photonic Crystal ◽  
Two Dimensional Photonic Crystal

Two-dimensional photonic crystal nanocavities were designed to tailor cavity quantum electrodynamics. Enhancing the spontaneous emission of low-quality factor nanocavity with embedded CdSe quantum dots (QDs) emitters is the aim of this study. Low concentration layer of CdSe QDs was sandwiched between two layers of Si2 N3 membrane using plasma-enhanced chemical vapor deposition. The modification rate in spontaneous emission of L3 nanocavity up to 2.3-fold has been observed at 629.5 nm in compare to bare cavities. High field confinement in the sub-wavelength regime became an interest field for quantum electrodynamics applications and good platform to study light matter interactions.

Anatase TiO2 nanosheets with exposed highly reactive (001) facets as an efficient photoanode for quantum dot-sensitized solar cells

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67968-67975 ◽  
Author(s):  
Haitao Zhou ◽  
Lin Li ◽  
Dianli Jiang ◽  
Yingbing Lu ◽  
Kai Pan
Keyword(s):  
Quantum Dots ◽  
Solar Cell ◽  
Anatase Tio2 ◽  
Cdse Quantum Dots ◽  
Two Dimensional ◽  
Hydrothermal Route ◽  
One Pot ◽  
Tio2 Nanosheets ◽  
High Efficient ◽  
Sensitized Solar Cells

Two-dimensional (2D) anatase TiO2 nanosheets (TiO2-NSs) with exposed (001) crystal planes were obtained via a simple one-pot hydrothermal route, and a high efficient CdSe quantum dots solar cell was obtained based on the TiO2 nanosheets photoanode.

Probing Biexcitons in Quantum Dots using Femtosecond Pump/Probe and Two Dimensional Electronic Spectroscopy

2010 ◽  
Author(s):  
Pooja Tyagi ◽  
Katherine Stone ◽  
Daniel Turner ◽  
Samuel Sewall ◽  
Keith Nelson ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Spectroscopy ◽  
Two Dimensional ◽  
Pump Probe

scholarly journals Hot electron and hole dynamics in thiol-capped CdSe quantum dots revealed by 2D electronic spectroscopy

2016 ◽  
Vol 18 (37) ◽  
pp. 26199-26204 ◽  
Author(s):  
Nils Lenngren ◽  
Mohamed A. Abdellah ◽  
Kaibo Zheng ◽  
Mohammed J. Al-Marri ◽  
Donatas Zigmantas ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electronic Spectroscopy ◽  
Cdse Quantum Dots ◽  
Hot Electron ◽  
Cdse Qds

State-specific relaxation and trapping of excitations in thiol-capped CdSe QDs is followed by 2D electronic spectroscopy.

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