scholarly journals Near-Infrared Light Emissions from Er-doped ZnO Thin Films Induced by an Electrical Field

2007 ◽  
Vol 115 (1341) ◽  
pp. 341-343 ◽  
Author(s):  
Shigeru TANAKA ◽  
Yukari ISHIKAWA ◽  
Noriyoshi SHIBATA
2006 ◽  
Vol 320 ◽  
pp. 113-116
Author(s):  
Shigeru Tanaka ◽  
Yukari Ishikawa ◽  
Naoki Ohashi ◽  
Junichi Niitsuma ◽  
Takashi Sekiguchi ◽  
...  

We have obtained Er-doped ZnO thin film in a micropattern of reverse trapezoids processed on Si substrate by sputtering and ultrafine polishing techniques. Near-infrared light emission was detected successfully from the thin film filling a single micropit with 10 μm square. Transmission electron microscopy (TEM) observation showed epitaxial growth of ZnO crystals along the curvature of the micropit.


2006 ◽  
Vol 301 ◽  
pp. 71-74 ◽  
Author(s):  
Shigeru Tanaka ◽  
Yukari Ishikawa ◽  
Dai Nezaki ◽  
Mitsuhiro Okamoto ◽  
Noriyoshi Shibata

Er-doped ZnO thin films which emitted intense infrared light in the vicinity of 1.5 μm were investigated from points of view of the microstructure and electrical properties. The result of X-ray diffraction (XRD) pattern revealed that the crystal lattice of ZnO was apparently expanded by doping of Er ions. Electrical resistance in the direction of thickness of Er-doped ZnO film showed linear behavior, which was resemble to that of undoped ZnO film. Infrared light emission phenomenon of the film was related to the chemical / physical state of Er ions in ZnO matrix.


Author(s):  
Shigeru Tanaka ◽  
Yukari Ishikawa ◽  
Naoki Ohashi ◽  
Junichi Niitsuma ◽  
Takashi Sekiguchi ◽  
...  

2019 ◽  
Vol 39 (1) ◽  
pp. 0131001
Author(s):  
黎志文 Li Zhiwen ◽  
陆华 Lu Hua ◽  
李扬武 Li Yangwu ◽  
焦晗 Jiao Han ◽  
赵建林 Zhao Jianlin

Author(s):  
Yukari Ishikawa ◽  
Junichi Niitsuma ◽  
Shigeru Tanaka ◽  
Dai Nezaki ◽  
Mitsuhiro Okamoto ◽  
...  
Keyword(s):  

2006 ◽  
Vol 301 ◽  
pp. 189-192
Author(s):  
Yukari Ishikawa ◽  
Junichi Niitsuma ◽  
Shigeru Tanaka ◽  
Dai Nezaki ◽  
Mitsuhiro Okamoto ◽  
...  

In order to clarify the fundamental luminescent mechanism of undoped and Er-doped ZnO thin films synthesized by sputtering method, cathodoluminescence (CL) from the samples formed on several kinds of substrate were measured. There was no explicit peak identified with luminescence from ZnO crystal defects in undoped sample, on the contrary, three sharp luminescent peaks were observed in the case of Er-doped ZnO film due to the internal transition of the additive Er ions in the CL spectrum. The mechanism was investigated in comparison with photoluminescence (PL).


2011 ◽  
Vol 50 (6R) ◽  
pp. 061101 ◽  
Author(s):  
Lei Miao ◽  
Xiudi Xiao ◽  
Fanyong Ran ◽  
Sakae Tanemura ◽  
Gang Xu

2015 ◽  
Vol 33 (2) ◽  
pp. 021508 ◽  
Author(s):  
Ji Hun Park ◽  
Sang Ho Shin ◽  
Hyung Seok Yoon ◽  
Yongbae Jeon ◽  
Seunghun Lee ◽  
...  

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