Shape control of III–V semiconductor nanocrystals: Synthesis and properties of InAs quantum rods

2004 ◽  
Vol 125 ◽  
pp. 23-38 ◽  
Author(s):  
ShiHai Kan ◽  
Assaf Aharoni ◽  
Taleb Mokari ◽  
Uri Banin
Keyword(s):  
Shape Control ◽  
Semiconductor Nanocrystals ◽  
Quantum Rods

Synthesis and Characterization of III-V Rod Shape Semiconductor Nanocrystals

2005 ◽  
Vol 494 ◽  
pp. 121-128
Author(s):  
J.M. Nedeljković ◽  
O.I. Mićić ◽  
S.P. Ahrenkiel ◽  
A.J. Nozik
Keyword(s):  
Size Distribution ◽  
Semiconductor Nanocrystals ◽  
Synthesis And Characterization ◽  
Lateral Growth ◽  
Narrow Size Distribution ◽  
Free Standing ◽  
Quantum Rods ◽  
Metallic Catalyst ◽  
Strong Confinement

InP and InAs quantum rods were synthesized via the reactions of monodispersed indium droplets with phosphide or arsenide ions, respectively. In these reactions indium droplets, which do not act as a catalyst but rather as a reactant, are completely consumed. For the synthesis of InP and InAs quantum rods with a narrow size distribution, a narrow size distribution of indium particles is required because each indium droplet serves as a template to strictly limit the lateral growth of individual InP or InAs nanocrystals. Free-standing InP (130 Å diameter and 870 Å length) and InAs (180 Å diameter and 745 Å length) quantum rods without residual metallic catalyst at the rod tip were synthesized from the diluted transparent solutions of metallic indium. Both kinds of synthesized nanorods are in the strong confinement regime since the Bohr diameters of InP and InAs are 200 and 700 Å, respectively.

Light amplification in semiconductor nanocrystals: Quantum rods versus quantum dots

2003 ◽  
Vol 82 (26) ◽  
pp. 4776-4778 ◽  
Author(s):  
H. Htoon ◽  
J. A. Hollingworth ◽  
A. V. Malko ◽  
R. Dickerson ◽  
V. I. Klimov
Keyword(s):  
Quantum Dots ◽  
Semiconductor Nanocrystals ◽  
Quantum Rods ◽  
Light Amplification

“One-pot” synthesis and shape control of ZnSe semiconductor nanocrystals in liquid paraffin

2010 ◽  
Vol 20 (21) ◽  
pp. 4451 ◽  
Author(s):  
Yi Liu ◽  
Yue Tang ◽  
Yang Ning ◽  
Minjie Li ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Shape Control ◽  
Liquid Paraffin ◽  
Semiconductor Nanocrystals ◽  
One Pot ◽  
One Pot Synthesis

General Shape Control of Colloidal CdS, CdSe, CdTe Quantum Rods and Quantum Rod Heterostructures

2005 ◽  
Vol 109 (18) ◽  
pp. 8538-8542 ◽  
Author(s):  
Felice Shieh ◽  
Aaron E. Saunders ◽  
Brian A. Korgel
Keyword(s):  
Shape Control ◽  
General Shape ◽  
Quantum Rods ◽  
Quantum Rod ◽  
Colloidal Cds

Synthesis of InP and InAs quantum rods using Indium Acetate and Myristic acid

2004 ◽  
Vol 848 ◽  
Author(s):  
Itzhak Shweky ◽  
Assaf Aharoni ◽  
Taleb Mokari ◽  
Moshe Nadler ◽  
Eli Rothenberg ◽  
...  
Keyword(s):  
Myristic Acid ◽  
Shape Control ◽  
Synthesis Method ◽  
Au Catalyst ◽  
One Dimensional ◽  
Quantum Rods ◽  
Novel Approach ◽  
Transmission Electron ◽  
Important Challenge ◽  
Dimensional Growth

ABSTRACTThe development of solution based synthesis approaches for preparing nanocrystals of III-V semiconductor presents a significant & important challenge especially with relation to shape control to achieve rod growth. To this end, a novel approach for synthesis of soluble semiconductor quantum rods using metal nanoparticles to direct and catalyze one-dimensional growth is developed. The synthesis method is useful in particular for III-V semiconductor with cubic lattice, where the utilization of surfactant-controlled rod-growth is not easily realized. The growth takes place via the solution–liquid–solid (SLS) mechanism where proper precursors are injected into a coordinating solvent as we reported in earlier work for InAs nanorods. Herein, we report the synthesis of high quality InP nanorods using Indium Acetate and myristic acid with gold nanoparticles as the catalysts in the SLS growth mode. A similar route was successfully developed for the growth of InAs nanorods. We find that the amount of Au catalyst in the reaction is an important parameter to achieving shape control. Transmission electron microscope (TEM) images of InP and InAs nanocrystals revealed that the crystals are mostly rod-shaped. XRD measurements, absorption spectra were preformed for the nanorods characterization.

scholarly journals General Shape Control of Colloidal CdS, CdSe, CdTe Quantum Rods and Quantum Rod Heterostructures.

ChemInform ◽  
2005 ◽  
Vol 36 (33) ◽  
Author(s):  
Felice Shieh ◽  
Aaron E. Saunders ◽  
Brian A. Korgel
Keyword(s):  
Shape Control ◽  
General Shape ◽  
Quantum Rods ◽  
Quantum Rod ◽  
Colloidal Cds

scholarly journals Photochemically Induced Circular Dichroism of Semiconductor Nanocrystals-=SUP=-*-=/SUP=-

2020 ◽  
Vol 128 (8) ◽  
pp. 1192
Author(s):  
F.M. Safin ◽  
V.G. Maslov ◽  
A.Y. Dubavik ◽  
E.P. Kolesova ◽  
A.V. Baranov ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Optical Activity ◽  
Semiconductor Nanocrystals ◽  
Polarized Light ◽  
Induced Circular Dichroism ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Quantum Rods ◽  
Reaction Proceeds ◽  
Circular Dichroïsm

Here, we report an investigation of optical activity which was photochemically induced by illumination of QRs and DiRs with circularly polarized light; the photo-induced circular dichroism was quantitatively estimated, and it was shown that the photo-induced chemical reaction proceeds selectively, depending on the handedness of circularly polarized light. Keywords: chirality, optical activity, circular dichroism, photoinduced circular dichroism, semiconductor nanocrystals, quantum rods, quantum dot-in-rods.

scholarly journals Shape control of doped semiconductor nanocrystals (d-dots)

Nano Research ◽  
2008 ◽  
Vol 1 (2) ◽  
pp. 138-144 ◽  
Author(s):  
Ranjani Viswanatha ◽  
David M. Battaglia ◽  
Mark E. Curtis ◽  
Tetsuya D. Mishima ◽  
Matthew B. Johnson ◽  
...  
Keyword(s):  
Shape Control ◽  
Semiconductor Nanocrystals
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