scholarly journals Pulsed Electron Deposition (PED) - a Novel Tool for Growth of Thin Films

2012 ◽  
Vol 22 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Ngo Dinh Sang ◽  
Pham Hong Quang ◽  
Do Quang Ngoc

Pulsed Electron Deposition (PED) is a novel technique that can be applied for growing high quality thin films. In this technique, we used an electron beam with a focused diameter of about 1 mm, the energy up to 15 kV, the frequency of 1-10 Hz, the pulse width of 100 ns and the total current of 1.5 kA generated in a discharge system. A remarkable advantage of this technique is the low deviation in composition from bulk to film. By using the PED technique the transparent coducting ZnO and Cu(InGa)Se\(_{2 }\) films were prepared. The effect of some deposition conditions on the properties of film has been examined and discussed. For Cu(InGa)Se\(_{2 }\), the best film was obtained at the discharge voltage of 12 kV and substrate temperature of 400\(^\circ\)C, while for ZnO, the best film was grown at the oxygen pressure of 1.3 Pa and at 400(^\circ\)C.

2017 ◽  
Vol 27 (4) ◽  
pp. 1-5 ◽  
Author(s):  
Pusheng Yuan ◽  
Zhongtang Xu ◽  
Yanwei Ma ◽  
Yue Sun ◽  
Tsuyoshi Tamegai

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Thi Ha Tran ◽  
Thi Trung Anh Tang ◽  
Nguyen Hai Pham ◽  
Thanh Cong Bach ◽  
Cong Doanh Sai ◽  
...  

LaMnO3 (LMO) nanopowder was synthesized by the microwave combustion method using glycine and nitrate salts of La and Mn as precursors. The as-prepared LMO powder was pressed at high pressure and annealed at 1000°C for 8 hours to make a target for thin film deposition. The structural and elemental analysis was obtained by X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDS). Thin films of LMO were fabricated using pulsed electron deposition (PED) at room temperature. The effects of discharge voltage and oxygen/argon flux ratio on the produced thin films were studied. The study shows that stoichiometry and structure of the target was preserved well in the thin films prepared with a discharge voltage from 14 to 15 kV, while the oxygen/nitrogen flux ratio did not show a clear effect on the quality of thin films.


1997 ◽  
Vol 502 ◽  
Author(s):  
R. Biggers ◽  
C. Varanasi ◽  
I. Maartense ◽  
D. Dempsey ◽  
D. Mastc ◽  
...  

ABSTRACTYba2Cu3OT7−x (Y123) and NdBa2Cu3O7−x (Nd123) thin films were deposited by PLD using a 248 nm wavelength KrF excimer laser. The emission spectra PLD process control techniques developed to grow reproducibly high quality Y123 thin films were also applied to the Nd123 depositions. The time-resolved spectral components of plumes generated from Y123 and Nd123 targets at the same deposition conditions were compared. When the two targets were mounted at the same distance from the substrate heater, the spectral emissions at 327 ± 5 nm (Cu*) were essentially identical for similar laser pulse energies and other deposition conditions (150 mTorr oxygen pressure, 760°C substrate heater temperatures, etc.). High quality Nd 123 films (Tc ˜93 K, Jc > 2x 106 A/cm2) are considerably more difficult to produce than those of Y123. Deposition conditions associated with PLD of high quality Y123 films produce very poor Nd 123 films. This observation is consistent with the belief that the nucleation and growth of Nd 123 are significantly different than that of Y 123.


Nano Energy ◽  
2020 ◽  
Vol 72 ◽  
pp. 104742 ◽  
Author(s):  
Yujia Zhong ◽  
Li Zhang ◽  
Vincent Linseis ◽  
Bingchao Qin ◽  
Wenduo Chen ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 724
Author(s):  
Tong Li ◽  
Masaya Ichimura

Magnesium hydroxide (Mg(OH)2) thin films were deposited by the drop-dry deposition (DDD) method using an aqueous solution containing Mg(NO3)2 and NaOH. DDD was performed by dropping the solution on a substrate, heating-drying, and rinsing in water. Effects of different deposition conditions on the surface morphology and optical properties of Mg(OH)2 thin films were researched. Films with a thickness of 1−2 μm were successfully deposited, and the Raman peaks of Mg(OH)2 were observed for them. Their transmittance in the visible range was 95% or more, and the bandgap was about 5.8 eV. It was found that the thin films have resistivity of the order of 105 Ωcm. Thus, the transparent and semiconducting Mg(OH)2 thin films were successfully prepared by DDD.


2010 ◽  
Vol 43 (5) ◽  
pp. 055402 ◽  
Author(s):  
Ocal Tuna ◽  
Yusuf Selamet ◽  
Gulnur Aygun ◽  
Lutfi Ozyuzer

2021 ◽  
Vol 127 ◽  
pp. 105690
Author(s):  
A. Sáenz-Trevizo ◽  
D. Kuchle-Mena ◽  
P. Pizá-Ruiz ◽  
P. Amézaga-Madrid ◽  
O. Solís-Canto ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document