ChemInform Abstract: Chemical Mechanisms of Semiconductor Nanocrystal Synthesis.

ChemInform ◽  
2013 ◽  
Vol 44 (29) ◽  
pp. no-no
Author(s):  
Kelly L. Sowers ◽  
Brett Swartz ◽  
Todd D. Krauss
Keyword(s):  
Semiconductor Nanocrystal ◽  
Chemical Mechanisms ◽  
Nanocrystal Synthesis

Chemical Mechanisms of Semiconductor Nanocrystal Synthesis

2013 ◽  
Vol 25 (8) ◽  
pp. 1351-1362 ◽  
Author(s):  
Kelly L. Sowers ◽  
Brett Swartz ◽  
Todd D. Krauss
Keyword(s):  
Semiconductor Nanocrystal ◽  
Chemical Mechanisms ◽  
Nanocrystal Synthesis

Lattice Monte Carlo Simulation of Semiconductor Nanocrystal Synthesis in Microemulsion Droplets

Langmuir ◽  
2010 ◽  
Vol 26 (13) ◽  
pp. 11355-11362 ◽  
Author(s):  
Sreekumar R. Kuriyedath ◽  
Borislava Kostova ◽  
Ioannis G. Kevrekidis ◽  
T. J. Mountziaris
Keyword(s):  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Semiconductor Nanocrystal ◽  
Lattice Monte Carlo ◽  
Nanocrystal Synthesis

Extended Nucleation and Superfocusing in Colloidal Semiconductor Nanocrystal Synthesis

Nano Letters ◽  
2021 ◽  
Vol 21 (6) ◽  
pp. 2487-2496
Author(s):  
P. Tim Prins ◽  
Federico Montanarella ◽  
Kim Dümbgen ◽  
Yolanda Justo ◽  
Johanna C. van der Bok ◽  
...  
Keyword(s):  
Semiconductor Nanocrystal ◽  
Nanocrystal Synthesis ◽  
Colloidal Semiconductor

scholarly journals DBU-Catalyzed One-Pot Synthesis of Nearly Any Metal Salt of Fatty Acid (M-FA): A Library of Metal Precursors to Semiconductor Nanocrystal Synthesis

ACS Omega ◽  
2020 ◽  
Vol 5 (12) ◽  
pp. 6666-6675
Author(s):  
Siddhant Basel ◽  
Karishma Bhardwaj ◽  
Sajan Pradhan ◽  
Anand Pariyar ◽  
Sudarsan Tamang
Keyword(s):  
Fatty Acid ◽  
Metal Salt ◽  
One Pot ◽  
Semiconductor Nanocrystal ◽  
One Pot Synthesis ◽  
Metal Precursors ◽  
Nanocrystal Synthesis

Arsenic Silylamide: An Effective Precursor for Arsenide Semiconductor Nanocrystal Synthesis

2016 ◽  
Vol 28 (11) ◽  
pp. 4058-4064 ◽  
Author(s):  
Adita Das ◽  
Armen Shamirian ◽  
Preston T. Snee
Keyword(s):  
Semiconductor Nanocrystal ◽  
Nanocrystal Synthesis

Chemical mechanisms of tungsten CVD

1999 ◽  
Vol 09 (PR8) ◽  
pp. Pr8-245-Pr8-250
Author(s):  
Yu. V. Lakhotkin
Keyword(s):  
Chemical Mechanisms

Solvent-Ligand Interactions in Colloidal Nanocrystals

2018 ◽  
Author(s):  
Jonathan De Roo ◽  
Nuri Yazdani ◽  
Emile Drijvers ◽  
Alessandro Lauria ◽  
Jorick Maes ◽  
...  
Keyword(s):  
Direct Method ◽  
Line Broadening ◽  
H Nmr ◽  
Size Dependent ◽  
Line Shape Analysis ◽  
Wide Range ◽  
Nanocrystal Synthesis ◽  
Ligand Interactions ◽  
Indispensable Tool ◽  
Theoretical Evidence

<p>Although solvent-ligand interactions play a major role in nanocrystal synthesis, dispersion formulation and assembly, there is currently no direct method to study this. Here we examine the broadening of <sup>1</sup>H NMR resonances associated with bound ligands, and turn this poorly understood descriptor into a tool to assess solvent-ligand interactions. We show that the line broadening has both a homogeneous and a heterogeneous component. The former is nanocrystal-size dependent and the latter results from solvent-ligand interactions. Our model is supported by experimental and theoretical evidence that correlates broad NMR lines with poor ligand solvation. This correlation is found across a wide range of solvents, extending from water to hexane, for both hydrophobic and hydrophilic ligand types, and for a multitude of oxide, sulfide and selenide nanocrystals. Our findings thus put forward NMR line shape analysis as an indispensable tool to form, investigate and manipulate nanocolloids.</p>

Chemical Availability of Bromide Dictates CsPbBr3 Nanocrystal Growth

2019 ◽  
Author(s):  
Je-Ruei Wen ◽  
Benjamin Roman ◽  
Freddy Rodriguez Ortiz ◽  
Noel Mireles Villegas ◽  
Nicholas Porcellino ◽  
...  
Keyword(s):  
Reaction Time ◽  
Growth Mechanism ◽  
Chemical Control ◽  
Critical Role ◽  
Phase Evolution ◽  
Detailed Understanding ◽  
Semiconductor Nanocrystal ◽  
Nanocrystal Growth ◽  
Chemical Availability

Lack of detailed understanding of the growth mechanism of CsPbBr3 nanocrystals has hindered sophisticated morphological and chemical control of this important emerging optoelectronic material. Here, we have elucidated the growth mechanism by slowing the reaction kinetics. When 1-bromohexane is used as an alternative halide source, bromide is slowly released into the reaction mixture, extending the reaction time from ~3 seconds to greater than 20 minutes. This enables us to monitor the phase evolution of products over the course of reaction, revealing that CsBr is the initial species formed, followed by Cs4PbBr6, and finally CsPbBr3. Further, formation of monodisperse CsBr nanocrystals is demonstrated in a bromide-deficient and lead-abundant solution. The CsBr can only be transformed into CsPbBr3 nanocubes if additional bromide is added. Our results indicate a fundamentally different growth mechanism for CsPbBr3 in comparison with more established semiconductor nanocrystal systems and reveal the critical role of the chemical availability of bromide for the growth reactions.<br>

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