PMID- 24960114
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150409
LR  - 20140723
IS  - 1944-8252 (Electronic)
IS  - 1944-8244 (Linking)
VI  - 6
IP  - 14
DP  - 2014 Jul 23
TI  - Fabrication of a novel microsensor consisting of electrodeposited ZnO 
      nanorod-coated crossed Cu micropillars and the effects of nanorod coating 
      morphology on the gas sensing.
PG  - 11424-38
LID - 10.1021/am5019836 [doi]
AB  - A novel microsensor, consisting of crossed Cu micropillars coated with ZnO 
      nanorods, was fabricated by electrochemical methods for detecting gas in a small 
      space. The Cu micropillars (80 mum diameter, 10 mm long) were prepared by 
      microanode-guided electroplating (MAGE) on the periphery of a square copper pad 
      (dimensions 5.0 mm x 5.0 mm x 1.0 mm). The micropillars were electrochemically 
      coated with a 500 nm thick layer of ZnO nanorods deposited from a bath containing 
      2.0 mM zinc chloride and H2O2 varying in 5, 10, 15, and 20 mM. Two ZnO-coated 
      pillars were crossed to form a microsensor by approaching the Cu pads below, 
      which was adhered to an alumina substrate with silver paste and connected to 
      conducting wires for measurement. The morphology of the coating of ZnO nanorods, 
      which was found to be determined by the concentration of H2O2 in the bath, 
      influenced the gas sensing. The morphology of the coating was characterized by 
      scanning electron microscopy; the structural analysis was carried out by X-ray 
      diffraction and high-resolution transmission electron microscopy (HRTEM); the 
      surface analysis was carried out by X-ray photoelectron spectroscopy; and the 
      defects were determined with photoluminescence (PL) spectra. We thus investigated 
      the effect of the morphology of the coating on the sensing properties by 
      introducing a stream of gases varying in CO/air ratios to understand the sensing 
      mechanism of the microsensor.
FAU - Tseng, Yao-Tien
AU  - Tseng YT
AD  - Institute of Materials Science and Engineering and double daggerDepartment of Mechanical 
      Engineering, National Central University , Taoyuan 32001, Taiwan.
FAU - Lin, Jing-Chie
AU  - Lin JC
FAU - Ciou, Yong-Jie
AU  - Ciou YJ
FAU - Hwang, Yean-Ren
AU  - Hwang YR
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140702
PL  - United States
TA  - ACS Appl Mater Interfaces
JT  - ACS applied materials & interfaces
JID - 101504991
EDAT- 2014/06/25 06:00
MHDA- 2014/06/25 06:01
CRDT- 2014/06/25 06:00
PHST- 2014/06/25 06:00 [entrez]
PHST- 2014/06/25 06:00 [pubmed]
PHST- 2014/06/25 06:01 [medline]
AID - 10.1021/am5019836 [doi]
PST - ppublish
SO  - ACS Appl Mater Interfaces. 2014 Jul 23;6(14):11424-38. doi: 10.1021/am5019836. 
      Epub 2014 Jul 2.