Conductivity Study of Nitrogen-Doped Magnesium Zinc Oxide Prepared by Spray Pyrolysis

2015 ◽  
Vol 4 (3) ◽  
pp. 223-226 ◽  
Author(s):  
Tzu-Yang Lin ◽  
Yu-Ting Hsu ◽  
Lung-Chien Chen ◽  
Mu-Chun Wang ◽  
Wei-Hsuan Hsu ◽  
...  
Author(s):  
TzuYang Lin ◽  
WeiHsuan Hsu ◽  
ChunYi Lee ◽  
ShengChung Huang ◽  
YuXuan Ding ◽  
...  

Crystals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 34
Author(s):  
Chun-An Chen ◽  
Yu-Ting Hsu ◽  
Wen-How Lan ◽  
Kai-Feng Huang ◽  
Kuo-Jen Chang ◽  
...  

Diodes with an erbium and nitrogen codoped magnesium zinc oxide (MgZnO:Er,N) active layer were fabricated by spray pyrolysis on Si substrate with aqueous solutions including magnesium nitrate, zinc acetate, erbium acetate, ammonium acetate, and indium nitrate precursors. Diodes with different nitrogen content in their precursor were prepared and their properties were investigated. With scanning electron microscopy, film surface with mixed hexagonal flakes and tiny blocks was characterized for all samples. Certain morphologies varied for samples with different N contents. In the photoluminescence analyses, the intensity of the oxygen-related defects peak increased with the increasing of nitrogen content. The diodes were fabricated with an Au and In deposition on the top and backside. The diode current–voltage as well as capacitance–voltage characteristics were examined. An ununiformed n-type concentration distribution with high concentration near the interface in the MgZnO:Er,N layer was characterized for all samples. Diodes with high nitrogen content exhibit reduced breakdown voltage and higher interface concentration characteristics. Under reversed bias conditions with an injection current of 50 mA, a light spectrum with two distinct green emissions around wavelengths 532 and 553 nm was observed. A small spectrum variation was characterized for diodes prepared from different nitrogen content. The diode luminescence characteristics were examined and the diode prepared from N/Zn=1 in the precursor showed an optimal injection current-to-luminescence property. The current and luminescence properties of the diode were characterized and discussed.


2016 ◽  
Vol 481 ◽  
pp. 63-66 ◽  
Author(s):  
Yu-Ting Hsu ◽  
Wen-How Lan ◽  
Kai-Feng Huang ◽  
Jia-Ching Lin ◽  
Kuo-Jen Chang

Crystals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 454 ◽  
Author(s):  
Yu-Ting Hsu ◽  
Che-Chi Lee ◽  
Wen-How Lan ◽  
Kai-Feng Huang ◽  
Kuo-Jen Chang ◽  
...  

Erbium-doped magnesium zinc oxides were prepared through spray pyrolysis deposition at 450 °C with an aqueous solution containing magnesium nitrate, zinc acetate, erbium acetate, and indium nitrate precursors. Diodes with different erbium-doped magnesium zinc oxide thicknesses were fabricated. The effect of erbium-doped magnesium zinc oxide was investigated. The crystalline structure and surface morphology were analyzed using X-ray diffraction and scanning electron microscopy. The films exhibited a zinc oxide structure, with (002), (101), and (102) planes and tiny rods in a mixed hexagonal flakes surface morphology. With the photoluminescence analyses, defect states were identified. The diodes were fabricated via a metallization process in which the top contact was Au and the bottom contact was In. The current–voltage characteristics of these diodes were characterized. The structure resistance increased with the increase in erbium-doped magnesium zinc oxide thickness. With a reverse bias in excess of 8 V, the light spectrum, with two distinct green light emissions at wavelengths of 532 nm and 553 nm, was observed. The light intensity that resulted when using a different operation current of the diodes was investigated. The diode with an erbium-doped magnesium zinc oxide thickness of 230 nm shows high light intensity with an operational current of 80 mA. The emission spectrum with different injection currents for the diodes was characterized and the mechanism is discussed.


2015 ◽  
Vol 10 (9) ◽  
pp. 432-434 ◽  
Author(s):  
Tang Yi‐hao ◽  
Zheng Hang ◽  
Wang Yin ◽  
Ding Ming‐hui ◽  
Jin Guo ◽  
...  

2021 ◽  
Author(s):  
Aschalew Tadesse ◽  
Mebrahtu Hagos Kahsay ◽  
Neway Belachew ◽  
H C Ananda Murthy ◽  
Basavaiah Keloth

In order to explore an alternative photocatalyst for environmental remediation, we report the two-step process to synthesise the zinc oxide/nitrogen doped carbon quantum dots nanocomposites (ZnO@NCQDs NCs). In the first...


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