General route to ZnO nanorod arrays on conducting substrates via galvanic-cell-based approach

Zhaoke Zheng; Zhi Shiuh Lim; Yuan Peng; Lu You; Lang Chen; Junling Wang

doi:10.1038/srep02434

General route to ZnO nanorod arrays on conducting substrates via galvanic-cell-based approach

Zhaoke Zheng
, Zhi Shiuh Lim
, Yuan Peng
, Lu You
, Lang Chen
, Junling Wang

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

64 Citations (Scopus)

10 Downloads (CityUHK Scholars)

Abstract

Wurtzite ZnO nanorod exhibits many unique properties, which make it promising for various optoelectronic applications. To grow well-aligned ZnO nanorod arrays on various substrates, a seed layer is usually required to improve the density and vertical alignment. The reported works about seedless hydrothermal synthesis either require special substrates, or require external electrical field to enhance the ZnO nucleation. Here, we report a general method for the one-pot synthesis of homogenous and well-aligned ZnO nanorods on common conducting substrates without a seed layer. This method, based on the galvanic-cell structure, makes use of the contact potential between different materials as the driving force for ZnO growth. It is applicable to different conducting substrates at low temperature. More importantly, the as-grown ZnO nanorods show enhanced photoelectric response. This unique large scale low-temperature processing method could be of great importance for the application of ZnO nanostructures.

Original language	English
Article number	2434
Journal	Scientific Reports
Volume	3
DOIs	https://doi.org/10.1038/srep02434
Publication status	Published - 2013
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Inorganic Chemistry
Materials For Energy And Catalysis
Nanowires
Optical Materials
Subject Areas

Publisher's Copyright Statement

This full text is made available under CC-BY-NC-SA 3.0. https://creativecommons.org/licenses/by-nc-sa/3.0/

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title = "General route to ZnO nanorod arrays on conducting substrates via galvanic-cell-based approach",

abstract = "Wurtzite ZnO nanorod exhibits many unique properties, which make it promising for various optoelectronic applications. To grow well-aligned ZnO nanorod arrays on various substrates, a seed layer is usually required to improve the density and vertical alignment. The reported works about seedless hydrothermal synthesis either require special substrates, or require external electrical field to enhance the ZnO nucleation. Here, we report a general method for the one-pot synthesis of homogenous and well-aligned ZnO nanorods on common conducting substrates without a seed layer. This method, based on the galvanic-cell structure, makes use of the contact potential between different materials as the driving force for ZnO growth. It is applicable to different conducting substrates at low temperature. More importantly, the as-grown ZnO nanorods show enhanced photoelectric response. This unique large scale low-temperature processing method could be of great importance for the application of ZnO nanostructures.",

keywords = "Inorganic Chemistry, Materials For Energy And Catalysis, Nanowires, Optical Materials, Subject Areas",

author = "Zhaoke Zheng and Lim, \{Zhi Shiuh\} and Yuan Peng and Lu You and Lang Chen and Junling Wang",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "2013",

doi = "10.1038/srep02434",

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TY - JOUR

T1 - General route to ZnO nanorod arrays on conducting substrates via galvanic-cell-based approach

AU - Zheng, Zhaoke

AU - Lim, Zhi Shiuh

AU - Peng, Yuan

AU - You, Lu

AU - Chen, Lang

AU - Wang, Junling

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2013

Y1 - 2013

N2 - Wurtzite ZnO nanorod exhibits many unique properties, which make it promising for various optoelectronic applications. To grow well-aligned ZnO nanorod arrays on various substrates, a seed layer is usually required to improve the density and vertical alignment. The reported works about seedless hydrothermal synthesis either require special substrates, or require external electrical field to enhance the ZnO nucleation. Here, we report a general method for the one-pot synthesis of homogenous and well-aligned ZnO nanorods on common conducting substrates without a seed layer. This method, based on the galvanic-cell structure, makes use of the contact potential between different materials as the driving force for ZnO growth. It is applicable to different conducting substrates at low temperature. More importantly, the as-grown ZnO nanorods show enhanced photoelectric response. This unique large scale low-temperature processing method could be of great importance for the application of ZnO nanostructures.

AB - Wurtzite ZnO nanorod exhibits many unique properties, which make it promising for various optoelectronic applications. To grow well-aligned ZnO nanorod arrays on various substrates, a seed layer is usually required to improve the density and vertical alignment. The reported works about seedless hydrothermal synthesis either require special substrates, or require external electrical field to enhance the ZnO nucleation. Here, we report a general method for the one-pot synthesis of homogenous and well-aligned ZnO nanorods on common conducting substrates without a seed layer. This method, based on the galvanic-cell structure, makes use of the contact potential between different materials as the driving force for ZnO growth. It is applicable to different conducting substrates at low temperature. More importantly, the as-grown ZnO nanorods show enhanced photoelectric response. This unique large scale low-temperature processing method could be of great importance for the application of ZnO nanostructures.

KW - Inorganic Chemistry

KW - Materials For Energy And Catalysis

KW - Nanowires

KW - Optical Materials

KW - Subject Areas

UR - https://www.scopus.com/pages/publications/84882765914

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84882765914&origin=recordpage

U2 - 10.1038/srep02434

DO - 10.1038/srep02434

M3 - RGC 21 - Publication in refereed journal

C2 - 23942316

SN - 2045-2322

VL - 3

JO - Scientific Reports

JF - Scientific Reports

M1 - 2434

ER -

General route to ZnO nanorod arrays on conducting substrates via galvanic-cell-based approach

Abstract

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Research Keywords

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