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 (...
Autores principales: | , , , , , , , , , |
---|---|
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 |