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Title: Hydrothermal growth of ZnO nanowire arrays: fine tuning by precursor supersaturation

Abstract

In this paper, we develop a technique that fine tunes the hydrothermal growth of ZnO nanowires to address the difficulties in controlling their growth in a conventional one-pot hydrothermal method. In our technique, precursors are separately and slowly supplied with the assistance of a syringe pump, through the entire course of the growth. Compared to the one-pot method, the significantly lowered supersaturation of precursors helps eliminating competitive homogeneous nucleation and improves the reproducibility. The supersaturation degree can be readily tuned by the precursor quantity and injection rate, thus forming ZnO nanowire arrays of various geometries and packing densities in a highly controllable fashion. The precise control of ZnO nanowire growth enables systematic studies on the correlation between the material's properties and its morphology. Finally, in this work, ZnO nanowire arrays of various morphologies are studied as photoelectrochemical (PEC) water splitting photoanodes, in which we establish clear correlations between the water splitting performance and the nanowires' size, shape, and packing density.

Authors:
 [1];  [2];  [3];  [2];  [3]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials; Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering
  2. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1361271
Report Number(s):
BNL-113926-2017-JA
Journal ID: ISSN 1466-8033; R&D Project: 16064/16064; KC0403020
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
CrystEngComm
Additional Journal Information:
Journal Volume: 19; Journal Issue: 3; Journal ID: ISSN 1466-8033
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Yan, Danhua, Cen, Jiajie, Zhang, Wenrui, Orlov, Alexander, and Liu, Mingzhao. Hydrothermal growth of ZnO nanowire arrays: fine tuning by precursor supersaturation. United States: N. p., 2016. Web. doi:10.1039/C6CE02368A.
Yan, Danhua, Cen, Jiajie, Zhang, Wenrui, Orlov, Alexander, & Liu, Mingzhao. Hydrothermal growth of ZnO nanowire arrays: fine tuning by precursor supersaturation. United States. https://doi.org/10.1039/C6CE02368A
Yan, Danhua, Cen, Jiajie, Zhang, Wenrui, Orlov, Alexander, and Liu, Mingzhao. Tue . "Hydrothermal growth of ZnO nanowire arrays: fine tuning by precursor supersaturation". United States. https://doi.org/10.1039/C6CE02368A. https://www.osti.gov/servlets/purl/1361271.
@article{osti_1361271,
title = {Hydrothermal growth of ZnO nanowire arrays: fine tuning by precursor supersaturation},
author = {Yan, Danhua and Cen, Jiajie and Zhang, Wenrui and Orlov, Alexander and Liu, Mingzhao},
abstractNote = {In this paper, we develop a technique that fine tunes the hydrothermal growth of ZnO nanowires to address the difficulties in controlling their growth in a conventional one-pot hydrothermal method. In our technique, precursors are separately and slowly supplied with the assistance of a syringe pump, through the entire course of the growth. Compared to the one-pot method, the significantly lowered supersaturation of precursors helps eliminating competitive homogeneous nucleation and improves the reproducibility. The supersaturation degree can be readily tuned by the precursor quantity and injection rate, thus forming ZnO nanowire arrays of various geometries and packing densities in a highly controllable fashion. The precise control of ZnO nanowire growth enables systematic studies on the correlation between the material's properties and its morphology. Finally, in this work, ZnO nanowire arrays of various morphologies are studied as photoelectrochemical (PEC) water splitting photoanodes, in which we establish clear correlations between the water splitting performance and the nanowires' size, shape, and packing density.},
doi = {10.1039/C6CE02368A},
journal = {CrystEngComm},
number = 3,
volume = 19,
place = {United States},
year = {Tue Dec 20 00:00:00 EST 2016},
month = {Tue Dec 20 00:00:00 EST 2016}
}

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Cited by: 15 works
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