Characterization of undoped and Cu-doped ZnO films for surface acoustic wave applications

2001 ◽  
Vol 398-399 ◽  
pp. 641-646 ◽  
Author(s):  
Jin-Bock Lee ◽  
Hye-Jung Lee ◽  
Soo-Hyung Seo ◽  
Jin-Seok Park
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Zno Films ◽  
Doped Zno

scholarly journals Application of Ni-doped ZnO nanorods in surface acoustic wave ultraviolet photodetectors

2021 ◽  
Author(s):  
Walter Water ◽  
Cheng-Je Li ◽  
Liang-Wen Ji
Keyword(s):  
Thin Films ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Insertion Loss ◽  
Zno Nanorods ◽  
Zno Thin Films ◽  
Zno Films ◽  
Ni Doping ◽  
Doped Zno ◽  
Ultraviolet Photodetectors

A surface acoustic wave ultraviolet photodetector was fabricated on a ZnO thin film with pure and Ni-doped ZnO nanorods deposited on a Si substrate. Piezoelectric ZnO thin films were grown on Si through radio-frequency magnetron sputtering, and ZnO nanorods were synthesized on ZnO thin films by using the hydrothermal method. The crystalline structure, surface morphology, and luminescent characteristics of ZnO films and nanorods were examined using X-ray diffraction and photoluminescence spectrometers and scanning electron microscope. The performance of the surface acoustic wave photodetector was evaluated using the variations in surface capacitance, insertion loss, and phase shift. ZnO nanorods became shorter and thicker with an increase in the concentration of Ni doping; however, the variations in surface capacitance of Ni-doped ZnO nanorods were greater than those of pure ZnO nanorods obtained under ultraviolet irradiation. Devices with Ni-doped ZnO nanorods exhibited larger shifts in insertion loss and phase than those with pure ZnO nanorods did.

Preparation and Characterization of Zn1-XMnxO Thin Films on SiO2 Substrates

2012 ◽  
Vol 560-561 ◽  
pp. 820-824
Author(s):  
Yue Zhi Zhao ◽  
Fei Xiong ◽  
Guo Mian Gao ◽  
Shi Jing Ding
Keyword(s):  
Thin Films ◽  
Rf Magnetron Sputtering ◽  
Zno Films ◽  
X Ray Diffraction ◽  
Flat Surfaces ◽  
Atomic Force ◽  
Mn Content ◽  
Doped Zno ◽  
Mn Doped

Mn-doped ZnO thin films were prepared on SiO2substrates by using a radio-frequency(rf) magnetron sputtering in order to investigate structure and optical proprieties of the films. X-ray diffraction (XRD), Atomic force microscope (AFM) and UV-VIS spectrophotometry were employed to characterize the Mn-doped ZnO films. The results showed that the shape of the XRD spectrum was remarkably similar to that of the un-doped ZnO film; the film had mainly (002) peak, and indicate that the structure of the films was not disturbed by Mn-doped. The film had rather flat surfaces with the peak-to-tail roughness of about 25nm. Mn-doping changed the band gap of the films, which increased with the increase of the Mn content.

Transparent Surface Acoustic Wave Devices on ZnO/Glass Using Al-Doped ZnO as the Electrode

2013 ◽  
Vol 34 (10) ◽  
pp. 1319-1321 ◽  
Author(s):  
Jian Zhou ◽  
Xing Li He ◽  
Wen Bo Wang ◽  
Qi Zhu ◽  
Wei Peng Xuan ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Transparent Surface ◽  
Doped Zno ◽  
Acoustic Wave Devices
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