Electrochemical Deposition of ZnO Hierarchical Nanostructures from Hydrogel Coated Electrodes

Dai, S. X. and Li, Y. Y. and Du, Z. L. and Carter, K. R.. (2013) Electrochemical Deposition of ZnO Hierarchical Nanostructures from Hydrogel Coated Electrodes. Journal of the Electrochemical Society, 160 (4). D156-D162.

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Abstract

The electrochemical deposition of ZnO hierarchical nanostructures directly from PHEMA hydrogel coated electrodes has been successfully demonstrated. A variety of hierarchical ZnO nanostructures, including porous nanoflakes, nanosheets and nanopillar arrays were fabricated directly from the PHEMA hydrogel coated electrodes. Hybrid ZnO-hydrogel composite films were formed with low zinc concentration and short electrodeposition time. A dual-layer structure consisting of a ZnO/polymer and pure ZnO layer was obtained with zinc concentration above 0.01 M. SEM observations and XPS depth profiling were used to investigate ZnO nanostructure formation in the early electrodeposition process. A growth mechanism to understand the formation of ZnO/hydrogel hybrid hierarchical nanostructures was developed. The I-V characteristics of the ZnO-hydrogel composite films in dark and under ultraviolet (UV) illumination demonstrate potential applications in UV photodetection. (C) 2013 The Electrochemical Society. DOI: 10.1149/2.064304jes All rights reserved.

Item Type: Article
Additional Information: ISI Document Delivery No.: 117TUTimes Cited: 1Cited Reference Count: 36Dai, Shuxi Li, Yinyong Du, Zuliang Carter, Kenneth R.Center for Hierarchical Manufacturing (CHM) at the University of Massachusetts Amherst CMMI-1025020; MRSEC on Polymers at the University of Massachusetts Amherst DMR-0820506; Program for Changjiang Scholars and Innovative Research Team in University PCSIRT1126; National Natural Science Foundation of China 20903034, 11274093; SRF for ROCS, SEMThe authors acknowledge financial support from the Center for Hierarchical Manufacturing (CHM) at the University of Massachusetts Amherst (CMMI-1025020), the MRSEC on Polymers at the University of Massachusetts Amherst (DMR-0820506), kind support from the Panasonic Boston Research Laboratory. This work was also supported by the Program for Changjiang Scholars and Innovative Research Team in University (No. PCSIRT1126), National Natural Science Foundation of China (no. 20903034 and 11274093) and SRF for ROCS, SEM.Electrochemical soc incPennington
Uncontrolled Keywords: emission
Collections: Nanomanufacturing Research Collection > Nanomanufacturing Nanoscale Science and Engineering Centers > Center for Hierarchical Manufacturing
Depositing User: Robert Stevens
Date Deposited: 27 Mar 2014
Last Modified: 27 Mar 2014 20:21
URI: http://eprints.internano.org/id/eprint/2179

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