2011
DOI: 10.1088/0957-4484/22/32/325704
|View full text |Cite
|
Sign up to set email alerts
|

Free-standing ZnO–CuO composite nanowire array films and their gas sensing properties

Abstract: A modified hydrothermal method was developed to synthesize ZnO-CuO composite nanostructures. A free-standing film made of ZnO-CuO nanostructures was assembled on the surface of the hydrothermal solution with a smooth surface on one side and a spherical surface on the other side. The structure, growth mechanism and the optical properties of the composite nanostructures were studied. Structural characterizations indicate that the composite nanostructure mainly consisted of two single-crystal phases of CuO and Zn… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
5

Citation Types

2
53
0

Year Published

2012
2012
2022
2022

Publication Types

Select...
7
1
1

Relationship

0
9

Authors

Journals

citations
Cited by 105 publications
(55 citation statements)
references
References 33 publications
2
53
0
Order By: Relevance
“…Due to the good optical properties of ZnO NWs and the strong absorption of CuO in the visible region [16], ZnO NW/CuO heterojunction has drawn much interest these days. A wide variety of processes, including sputtering method [14], sol–gel technique [17], thermal oxidation [18], and modified hydrothermal method [19], have been developed to fabricate ZnO/CuO CH. These works demonstrated that good rectification ratio and good photoresponse can be obtained with ZnO/CuO coaxial heterojunctions.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Due to the good optical properties of ZnO NWs and the strong absorption of CuO in the visible region [16], ZnO NW/CuO heterojunction has drawn much interest these days. A wide variety of processes, including sputtering method [14], sol–gel technique [17], thermal oxidation [18], and modified hydrothermal method [19], have been developed to fabricate ZnO/CuO CH. These works demonstrated that good rectification ratio and good photoresponse can be obtained with ZnO/CuO coaxial heterojunctions.…”
Section: Introductionmentioning
confidence: 99%
“…These works demonstrated that good rectification ratio and good photoresponse can be obtained with ZnO/CuO coaxial heterojunctions. However, in coating a CuO layer on ZnO nanowires, it is unavoidable that part of the CuO will be in contact with the ZnO buffer layer, and as there are two parallel channels for current conduction (one from the ZnO buffer layer to the CuO layer, and the other from ZnO nanowires to the CuO layer), it is not possible to take full advantage of the benefits that are associated with using the ZnO nanowires in making the photodetector [14,18,19]. In this letter, we report fabrication and characterization of a ZnO nanowire/CuO heterojunction photodetector with a photoresist blocking layer.…”
Section: Introductionmentioning
confidence: 99%
“…Recent reports on CuO-ZnO compound and CuO/ZnO heterojunction structures show the need for efficient characteristics [11,12]. A few Cu dopants (<10 at.%) doped ZnO samples have been investigated [13,14].…”
Section: Introductionmentioning
confidence: 99%
“…Mixed oxides type CuO-ZnO have been studied in thin film geometry [20], in compressed powders [21,22] and recently as composite materials [23]; however, one-dimensional nanosized CuO-ZnO structures have not been reported.…”
Section: Introductionmentioning
confidence: 99%