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'Turning the dials': controlling synthesis, structure, composition, and surface chemistry to tailor silicon nanoparticle properties

Autor: Sarah Milliken, Riley W. Hooper, Ziqi Li, Kevin M. O'Connor, Jonathan G. C. Veinot, Alyxandra N. Thiessen, I Teng Cheong, Christopher Jay T. Robidillo

Publikováno v: Nanoscale. 13:16379-16404

Silicon nanoparticles (SiNPs) can be challenging to prepare with defined size, crystallinity, composition, and surface chemistry. As is the case for any nanomaterial, controlling these parameters is essential if SiNPs are to realize their full potent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb829659e28b99a5d8eee73c58950d43
https://doi.org/10.1039/d1nr04701a

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Thermally Induced Dehydrogenative Coupling of Organosilanes and H-Terminated Silicon Quantum Dots onto Germanane Surfaces

Autor: Alyxandra N. Thiessen, Asjad Hossain, Bernhard Rieger, Haoyang Yu, Marc Julian Kloberg, Jonathan G. C. Veinot

Publikováno v: Chemistry of Materials. 32:4536-4543

Covalently bonded organic monolayers play important roles in defining the solution processability, ambient stability, and electronic properties of two-dimensional (2D) materials such as germanium n...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::182e20fe4bd52c738ceda86d5009beee
https://doi.org/10.1021/acs.chemmater.0c00482

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Dehydrocoupling – an alternative approach to functionalizing germanium nanoparticle surfaces

Autor: Morteza Javadi, Jonathan G. C. Veinot, Anton O. Oliynyk, Alyxandra N. Thiessen, Asjad Hossain, Nduka Ikpo, Haoyang Yu

Publikováno v: Nanoscale. 12:6271-6278

Surface functionalization is an essential aspect of nanoparticle design and preparation; it can impart stability, processability, functionality, as well as tailor optoelectronic properties that facilitate future applications. Herein we report a new a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b464851426eabbde0806d83d91ffe9aa
https://doi.org/10.1039/c9nr10837h

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Akademický článek

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Endogenous dynamic nuclear polarization NMR of hydride-terminated silicon nanoparticles

Autor: Michelle Ha, Alyxandra N. Thiessen, Ivan V. Sergeyev, Jonathan G. C. Veinot, Vladimir K. Michaelis

Publikováno v: Solid State Nuclear Magnetic Resonance. 100:77-84

Silicon nanoparticles (SiNPs) are intriguing materials and their properties fascinate the broader scientific community; they are also attractive to the biological and materials science sub-disciplines because of their established biological and envir

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a007d660a869a11d7ba298d0dd2c285
https://doi.org/10.1016/j.ssnmr.2019.04.001

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Synthesis, Properties, and Derivatization of Poly(dihydrogermane): A Germanium-Based Polyethylene Analogue

Autor: Chuyi Ni, Ziqi Li, Jonathan G. C. Veinot, Haoyang Yu, Alyxandra N. Thiessen

Publikováno v: ACS nano. 15(6)

Polygermanes are germanium-based analogues of polyolefins and possess polymer backbones made up catenated Ge atoms. In the present contribution we report the preparation of a stable germanium polyethylene analogue – polydihydrogermane (i.e., (GeH2)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::352c36d97762d607ff44cc4d21bae36a
https://pubmed.ncbi.nlm.nih.gov/33861576

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Cellular Uptake and Magneto-Hyperthermia Induced Cytotoxicity using Photoluminescent Fe3O4 Nanoparticle/Si Quantum Dot Hybrids

Autor: Jenna M. Drummond, Alyxandra N. Thiessen, Maryam Aghajamali, Greg G. Goss, Morteza Javadi, Muhammad Amirul Islam, Jonathan G. C. Veinot, Van A. Ortega

The design and fabrication of Si-based multi-functional nanomaterials for biological and biomedical applications is an active area of research. The potential benefits of using Si-based nanomaterials are not only due to their size/surface-dependent op

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::626cadced880843a9e893b1c9f9ea9aa
https://doi.org/10.26434/chemrxiv.13138427

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A Tale of Seemingly 'Identical' Silicon Quantum Dot Families: Structural Insight into Silicon Quantum Dot Photoluminescence

Autor: Kevin M. O'Connor, Haoyang Yu, Lijuan Zhang, Alkiviathes Meldrum, Anton O. Oliynyk, Alyxandra N. Thiessen, Jonathan G. C. Veinot

Two quantum dots, both alike in composition, but differing in structure, where we lay our scene. From broader classes, to bring deeper understanding, to the crystalline core that drives the quantum dot's sheen. In this contribution we examine two fam

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1bbf283f3b3079d6a5356d4f9cc6e0f
https://doi.org/10.26434/chemrxiv.11852040.v1

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Assessment of the sensitivity of DQF/ZQF 2 H NMR of D 2 O for studying modified nafion membranes at 20 °C and 80 °C

Autor: Alyxandra N. Thiessen, Wesley Verbeek, Kelsey Gritter, Kristopher J. Ooms

Publikováno v: Solid State Nuclear Magnetic Resonance. 93:1-6

Double and zero quantum filtered (ZQF/DQF) 2H NMR spectroscopy was used to study D2O in five different Nafion membranes, N117, N115, NR212, XL, and HP, in order to assess the effectiveness of the technique for monitoring differences in thickness, mem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d8d9b9ba0614ede81203a9df60d3013
https://doi.org/10.1016/j.ssnmr.2018.03.005

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