scholarly journals Photoionization Cross Sections of Atomic Impurities in Spherical Quantum Dots

10.5772/36179 ◽  
2012 ◽  
Author(s):  
C.Y. Lin ◽  
Y.K. Ho
Keyword(s):  
Quantum Dots ◽  
Cross Sections

Far field emission of micropillar and planar microcavities lattice-matched to ZnTe

Open Physics ◽  
2011 ◽  
Vol 9 (2) ◽  
Author(s):  
Tomasz Jakubczyk ◽  
Wojciech Pacuski ◽  
Paweł Duch ◽  
Piotr Godlewski ◽  
Andrzej Golnik ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Angular Distribution ◽  
Field Emission ◽  
Field Distribution ◽  
Cross Sections ◽  
Light Emission ◽  
Numerical Aperture ◽  
Far Field ◽  
Lattice Matched ◽  
Isotropic Radiation

AbstractWe investigate light emission from ZnTe-based microcavities containing CdTe quantum dots (QDs), with 2D (planar cavity) and 0D (pillar cavities) photonic confinement. The angular distribution from the planar cavity is presented as well as 2D cross-sections of the far field distribution of radiation from the micropillars. The efficient and desirable modification of the isotropic radiation of the QDs is shown for such structures. The diffraction observed is found to be inherent for such experiments with large numerical aperture of the lens and small diameters of the investigated pillars. This diffraction is successfully modeled.

Multiexciton Absorption Cross Sections of CdSe Quantum Dots Determined by Ultrafast Spectroscopy

2013 ◽  
Vol 4 (19) ◽  
pp. 3330-3336 ◽  
Author(s):  
Nils Lenngren ◽  
Tommy Garting ◽  
Kaibo Zheng ◽  
Mohamed Abdellah ◽  
Noëlle Lascoux ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Cross Sections ◽  
Ultrafast Spectroscopy ◽  
Cdse Quantum Dots ◽  
Absorption Cross

Near IR Absorption-Emission Cross-Sections of IV-VI Group PbSe Quantum Dots Doped in UV Gel

2014 ◽  
Vol 34 (9) ◽  
pp. 0916002
Author(s):  
程成 Cheng Cheng ◽  
徐银辉 Xu Yinhui
Keyword(s):  
Quantum Dots ◽  
Cross Sections ◽  
Ir Absorption ◽  
Near Ir

Measuring the two-photon absorption cross sections of thiol-capped CdTe quantum dots in living cells

2010 ◽  
Vol 97 (17) ◽  
pp. 173703 ◽  
Author(s):  
Shen Zheng ◽  
Ji-Yao Chen ◽  
Pei-Nan Wang ◽  
Wu-Li Yang ◽  
Lu-Wei Zhou
Keyword(s):  
Quantum Dots ◽  
Cross Sections ◽  
Living Cells ◽  
Cdte Quantum Dots ◽  
Photon Absorption ◽  
Absorption Cross ◽  
Two Photon Absorption ◽  
Two Photon

Spectra Cross-sections of CdSxSe1-x/ZnS(core/shell) Quantum Dots and Photoluminescent Transmission of the Doped Fiber

2017 ◽  
Vol 46 (9) ◽  
pp. 916001
Author(s):  
程成 CHENG Cheng ◽  
黄媛 HUANG Yuan ◽  
姚建华 YAO Jian-hua
Keyword(s):  
Quantum Dots ◽  
Cross Sections ◽  
Core Shell

scholarly journals Optimizing Quantum Dot Solar Concentrators with Thin Film Solar Cells

2010 ◽  
Vol 74 ◽  
pp. 176-181 ◽  
Author(s):  
W.G.J.H.M. van Sark ◽  
Celso De Mello Donegá ◽  
Ruud E.I. Schropp
Keyword(s):  
Thin Film ◽  
Quantum Dots ◽  
Solar Cells ◽  
Cross Sections ◽  
Stokes Shift ◽  
Maximum Efficiency ◽  
Silicon Solar Cells ◽  
Process Conditions ◽  
Solar Concentrators ◽  
Thin Film Silicon

Quantum dots are proposed as luminescent species in luminescent solar concentrators in combination with thin film silicon solar cells. As both tuning absorption and emission properties of quantum dots is possible by adapting process conditions, as well as tuning the band gap of thin film silicon solar cells, an optimum combination is expected to exist for which the conversion efficiency of the whole device is maximum. As a first step we have employed ray-tracing modeling to determine the efficiency of a luminescent concentrator using several quantum dots and heteronanocrystals with varying Stokes’ shift and absorption cross sections. A maximum efficiency of 5.9% is found for so-called Type II heteronanocrystals.

Electron capture cross sections of InAs∕GaAs quantum dots

2004 ◽  
Vol 85 (14) ◽  
pp. 2908-2910 ◽  
Author(s):  
O. Engström ◽  
M. Kaniewska ◽  
Y. Fu ◽  
J. Piscator ◽  
M. Malmkvist
Keyword(s):  
Quantum Dots ◽  
Electron Capture ◽  
Cross Sections ◽  
Capture Cross ◽  
Capture Cross Sections
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