Characterization of hydroxyapatite coating by pulse laser deposition technique on stainless steel 316 L by varying laser energy

2013 ◽  
Vol 265 ◽  
pp. 30-35 ◽  
Author(s):  
Himanshu Khandelwal ◽  
Gurbhinder Singh ◽  
Khelendra Agrawal ◽  
Satya Prakash ◽  
R.D. Agarwal
2015 ◽  
Vol 655 ◽  
pp. 186-190
Author(s):  
Yun Jie Liu ◽  
Lan Zhong Hao ◽  
Jun Zhu ◽  
Wan Li Zhang ◽  
Lian Qing Yu ◽  
...  

(001)-oriented LiNbO3(LN) ferroelectric films were grown on (100)-oriented n-type Si substrates using 15 nm-thick ZnO layers as buffers by pulse laser deposition technique and the LN/ZnO/n-Si heterojunctions were fabricated. Obvious photoswitching characteristics to white light were observed when the reverse voltages were applied on the LN/ZnO/n-Si heterojunction. High performance was exhibited, such as a largeON/OFFratio, short photoresponse time, steadyONorOFFstates, and well reversible. The results were discussed in terms of the band diagrams of the LN/ZnO/Si heterojunctions in this work.


2021 ◽  
Vol 03 (02) ◽  
pp. 156-164
Author(s):  
Asmaa Natiq Mohammed ALI ◽  
Lamia K ABBAS ◽  
Ihab Abbas TAHER

In this work ,pure and doped(CdO)thin films with different concentration of V2O5x (0.0, 0.05, 0.1 ) wt.% have been prepared on glass substrate at room temperature using Pulse Laser Deposition technique(PLD).The focused Nd:YAG laser beam at 800 mJ with a frequency second radiation at 1064 nm (pulse width 9 ns) repetition frequency (6 Hz), for 500 laser pulses incident on the target surface At first ,The pellets of (CdO)1-x(V2O5)x at different V2O5 contents were sintered to a temperature of 773K for one hours.Then films of (CdO)1-x(V2O5)x have been prepared.The structure of the thin films was examined by using (XRD) analysis..Hall effect has been measured in orded to know the type of conductivity, Finally the solar cell and the efficiency of the CdO:V2O5 cells have been studied.


2013 ◽  
Vol 1495 ◽  
Author(s):  
Kee-Chul Chang ◽  
Brian Ingram ◽  
Paul Salvador ◽  
Bilge Yildiz ◽  
Hoydoo You

ABSTRACTWe will briefly review in situ synchrotron x-ray investigation of model thin film cathode systems for solid oxide fuel cells. The film cathodes examined in this study are (La,Sr)MnO3_δ (LSM), (La,Sr)CoO3_δ (LSC), and La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF) thin films epitaxially grown on YSZ single crystal substrates by the pulse laser deposition technique. We find in all cases that Sr is enriched or segregated to the surface of the film cathodes. We concluded that the Sr enrichments or segregations are mainly the results of annealing because they do not depend on whether the cathodes are electrochemically biased or not during annealing. However, at least in the case of LSCF, we find that B-site Co segregates rather uniformly to the surface and the segregation responds sensitively and reversibly to the electrochemical bias.


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