期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 160, 期 4, 页码 D156-D162出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.064304jes
关键词
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资金
- 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, SEM
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.
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