Effect of Ag doping on the properties of ZnO thin films for UV stimulated emission

2018 ◽  
Vol 538 ◽  
pp. 131-137 ◽  
Author(s):  
Ahmed S. Razeen ◽  
A.-S. Gadallah ◽  
M.M. El-Nahass
Keyword(s):  
Thin Films ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Ag Doping

Low-Threshold Stimulated Emission in ZnO Thin Films Grown by Atomic Layer Deposition

2008 ◽  
Vol 14 (4) ◽  
pp. 1053-1057 ◽  
Author(s):  
Hsing-Chao Chen ◽  
Miin-Jang Chen ◽  
Mong-Kai Wu ◽  
Yung-Chen Cheng ◽  
Feng-Yu Tsai
Keyword(s):  
Thin Films ◽  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Layer Deposition ◽  
Low Threshold

Effect of Ag Doping on Optical and Electrical Properties of ZnO Thin Films

2005 ◽  
Vol 22 (8) ◽  
pp. 2031-2034 ◽  
Author(s):  
Xu Jin ◽  
Zhang Zi-Yu ◽  
Zhang Yang ◽  
Lin Bi-Xia ◽  
Fu Zhu-Xi
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Zno Thin Films ◽  
Optical And Electrical Properties ◽  
Ag Doping

Ultraviolet stimulated emission from bulk and polycrystalline ZnO thin films with varying grain sizes

2003 ◽  
Vol 340-342 ◽  
pp. 245-249 ◽  
Author(s):  
G. Tobin ◽  
E. McGlynn ◽  
M.O. Henry ◽  
J.P. Mosnier ◽  
J.G. Lunney ◽  
...  
Keyword(s):  
Thin Films ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Grain Sizes

scholarly journals Stimulated emission and time-resolved photoluminescence in rf-sputtered ZnO thin films

2004 ◽  
Vol 84 (17) ◽  
pp. 3223-3225 ◽  
Author(s):  
Ü. Özgür ◽  
A. Teke ◽  
C. Liu ◽  
S.-J. Cho ◽  
H. Morkoç ◽  
...  
Keyword(s):  
Thin Films ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Time Resolved ◽  
Time Resolved Photoluminescence

scholarly journals Ag Doped ZnO Thin Films Synthesized by Spray Coating Technique for Methylene Blue Photodegradation under UV Irradiation

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Heri Sutanto ◽  
Singgih Wibowo ◽  
Iis Nurhasanah ◽  
Eko Hidayanto ◽  
H. Hadiyanto
Keyword(s):  
Thin Films ◽  
Methylene Blue ◽  
Doping Concentration ◽  
Uv Light ◽  
Irradiation Time ◽  
Spray Coating ◽  
Zno Thin Films ◽  
Sem Images ◽  
Ag Doping ◽  
Coating Technique

Silver (Ag) substituted ZnO thin films were successfully deposited onto glass substrates by spray coating technique. Structure, morphology, and optical properties were evaluated by X-ray diffractometer (XRD), scanning electron microscopy (SEM), and UV-Vis spectrophotometer, respectively. XRD spectra had polycrystalline wurtzite structure; SEM images showed that thin films had different surface morphology at different Ag doping concentration. From transmittance spectra, thin films transparency decreased as well as band gap energy along with increase of Ag doping concentration. Methylene blue (MB) solution was used as a pollutant in the photodegradation studies. Under UV light irradiation, the optimal Ag doping is 25%, with 83% of the decolorizing efficiencies after 3 h irradiation time and apparent constant (kapp) about 9.69 × 10−3 min−1.

Enhanced stimulated emission in ZnO thin films using microdisk top-down structuring

2014 ◽  
Vol 104 (18) ◽  
pp. 181104 ◽  
Author(s):  
K. Nomenyo ◽  
A.-S. Gadallah ◽  
S. Kostcheev ◽  
D. J. Rogers ◽  
G. Lérondel
Keyword(s):  
Thin Films ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Top Down

scholarly journals Ultraviolet Stimulated Emission from Sol-Gel Spin Coated ZnO Thin Films

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Ahmed S. Razeen ◽  
A.-S. Gadallah ◽  
M. M. El-Nahass
Keyword(s):  
Thin Films ◽  
Quantum Efficiency ◽  
Spin Coating ◽  
Sol Gel ◽  
Optical Excitation ◽  
Stimulated Emission ◽  
Zno Thin Films ◽  
Input Output ◽  
Output Intensity ◽  
Intensity Dependence

Low cost ultraviolet stimulated emission has been generated using optical excitation of ZnO thin films deposited by sol-gel spin coating on n+As-doped100Si-substrate. The number of deposited layers and the heat treatment have been investigated to obtain a film that can generate stimulated emission under optical excitation. The optimum condition for preparation of the film has been presented. X-ray diffraction and scanning electron microscope have been used for structural and morphological investigations. Input-output intensity dependence and spectral width, peak emission wavelength, and the quantum efficiency versus the pump intensity have been presented. A quantum efficiency of about 24.2% has been reported, a power exponent higher than 8 has been obtained in input-output intensity dependence, and a threshold of about 23 Mw/cm2has been evaluated for the samples. The mechanism by which stimulated emission occurs has been discussed. The results show that sol-gel spin coating is a promising method for generating ultraviolet stimulated emission from ZnO thin films.

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