Cargando…

Controlled Fabrication of Quality ZnO NWs/CNTs and ZnO NWs/Gr Heterostructures via Direct Two-Step CVD Method

A novel and advanced approach of growing zinc oxide nanowires (ZnO NWs) directly on single-walled carbon nanotubes (SWCNTs) and graphene (Gr) surfaces has been demonstrated through the successful formation of 1D–1D and 1D–2D heterostructure interfaces. The direct two-step chemical vapor deposition (...

Descripción completa

Detalles Bibliográficos
Autores principales: Schaper, Nicholas, Alameri, Dheyaa, Kim, Yoosuk, Thomas, Brian, McCormack, Keith, Chan, Mathew, Divan, Ralu, Gosztola, David J., Liu, Yuzi, Kuljanishvili, Irma
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8308266/
https://www.ncbi.nlm.nih.gov/pubmed/34361224
http://dx.doi.org/10.3390/nano11071836
_version_ 1783728239974285312
author Schaper, Nicholas
Alameri, Dheyaa
Kim, Yoosuk
Thomas, Brian
McCormack, Keith
Chan, Mathew
Divan, Ralu
Gosztola, David J.
Liu, Yuzi
Kuljanishvili, Irma
author_facet Schaper, Nicholas
Alameri, Dheyaa
Kim, Yoosuk
Thomas, Brian
McCormack, Keith
Chan, Mathew
Divan, Ralu
Gosztola, David J.
Liu, Yuzi
Kuljanishvili, Irma
author_sort Schaper, Nicholas
collection PubMed
description A novel and advanced approach of growing zinc oxide nanowires (ZnO NWs) directly on single-walled carbon nanotubes (SWCNTs) and graphene (Gr) surfaces has been demonstrated through the successful formation of 1D–1D and 1D–2D heterostructure interfaces. The direct two-step chemical vapor deposition (CVD) method was utilized to ensure high-quality materials’ synthesis and scalable production of different architectures. Iron-based universal compound molecular ink was used as a catalyst in both processes (a) to form a monolayer of horizontally defined networks of SWCNTs interfaced with vertically oriented ZnO NWs and (b) to grow densely packed ZnO NWs directly on a graphene surface. We show here that our universal compound molecular ink is efficient and selective in the direct synthesis of ZnO NWs/CNTs and ZnO NWs/Gr heterostructures. Heterostructures were also selectively patterned through different fabrication techniques and grown in predefined locations, demonstrating an ability to control materials’ placement and morphology. Several characterization tools were employed to interrogate the prepared heterostructures. ZnO NWs were shown to grow uniformly over the network of SWCNTs, and much denser packed vertically oriented ZnO NWs were produced on graphene thin films. Such heterostructures can be used widely in many potential applications, such as photocatalysts, supercapacitors, solar cells, piezoelectric or thermal actuators, as well as chemical or biological sensors.
format Online
Article
Text
id pubmed-8308266
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-83082662021-07-25 Controlled Fabrication of Quality ZnO NWs/CNTs and ZnO NWs/Gr Heterostructures via Direct Two-Step CVD Method Schaper, Nicholas Alameri, Dheyaa Kim, Yoosuk Thomas, Brian McCormack, Keith Chan, Mathew Divan, Ralu Gosztola, David J. Liu, Yuzi Kuljanishvili, Irma Nanomaterials (Basel) Article A novel and advanced approach of growing zinc oxide nanowires (ZnO NWs) directly on single-walled carbon nanotubes (SWCNTs) and graphene (Gr) surfaces has been demonstrated through the successful formation of 1D–1D and 1D–2D heterostructure interfaces. The direct two-step chemical vapor deposition (CVD) method was utilized to ensure high-quality materials’ synthesis and scalable production of different architectures. Iron-based universal compound molecular ink was used as a catalyst in both processes (a) to form a monolayer of horizontally defined networks of SWCNTs interfaced with vertically oriented ZnO NWs and (b) to grow densely packed ZnO NWs directly on a graphene surface. We show here that our universal compound molecular ink is efficient and selective in the direct synthesis of ZnO NWs/CNTs and ZnO NWs/Gr heterostructures. Heterostructures were also selectively patterned through different fabrication techniques and grown in predefined locations, demonstrating an ability to control materials’ placement and morphology. Several characterization tools were employed to interrogate the prepared heterostructures. ZnO NWs were shown to grow uniformly over the network of SWCNTs, and much denser packed vertically oriented ZnO NWs were produced on graphene thin films. Such heterostructures can be used widely in many potential applications, such as photocatalysts, supercapacitors, solar cells, piezoelectric or thermal actuators, as well as chemical or biological sensors. MDPI 2021-07-15 /pmc/articles/PMC8308266/ /pubmed/34361224 http://dx.doi.org/10.3390/nano11071836 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Schaper, Nicholas
Alameri, Dheyaa
Kim, Yoosuk
Thomas, Brian
McCormack, Keith
Chan, Mathew
Divan, Ralu
Gosztola, David J.
Liu, Yuzi
Kuljanishvili, Irma
Controlled Fabrication of Quality ZnO NWs/CNTs and ZnO NWs/Gr Heterostructures via Direct Two-Step CVD Method
title Controlled Fabrication of Quality ZnO NWs/CNTs and ZnO NWs/Gr Heterostructures via Direct Two-Step CVD Method
title_full Controlled Fabrication of Quality ZnO NWs/CNTs and ZnO NWs/Gr Heterostructures via Direct Two-Step CVD Method
title_fullStr Controlled Fabrication of Quality ZnO NWs/CNTs and ZnO NWs/Gr Heterostructures via Direct Two-Step CVD Method
title_full_unstemmed Controlled Fabrication of Quality ZnO NWs/CNTs and ZnO NWs/Gr Heterostructures via Direct Two-Step CVD Method
title_short Controlled Fabrication of Quality ZnO NWs/CNTs and ZnO NWs/Gr Heterostructures via Direct Two-Step CVD Method
title_sort controlled fabrication of quality zno nws/cnts and zno nws/gr heterostructures via direct two-step cvd method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8308266/
https://www.ncbi.nlm.nih.gov/pubmed/34361224
http://dx.doi.org/10.3390/nano11071836
work_keys_str_mv AT schapernicholas controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod
AT alameridheyaa controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod
AT kimyoosuk controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod
AT thomasbrian controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod
AT mccormackkeith controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod
AT chanmathew controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod
AT divanralu controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod
AT gosztoladavidj controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod
AT liuyuzi controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod
AT kuljanishviliirma controlledfabricationofqualityznonwscntsandznonwsgrheterostructuresviadirecttwostepcvdmethod