Parası kalmadığı için otobüse binemiyordur ailesi porno izle ona daha yeni para gönderdiği için tekrar porno istemeye utanınca mecburen otostop çekmek için youporn çantasını alarak yol kenarına gelir etekli porno liseli türk kız yol kenarında dururken yanına yaklaşan porno kibar bir gencin onu gideceği yere kadar bırakmak porno izle istemesine çok mutlu olur arabaya bindiklerinde gideceği yer ile porno arabayı kullanan adamın gittiği yer arasında çok mesafe sex izle farkı olduğunu anlayan türk kız bu yaptığı porno indir iyilik karşısında arabada ona memelerini açar porno sapıklaşan adam yol kenarındaki hotelde durarak porno izle üniversiteli otostop çeken türk kızına odada sakso çektirip sikerElaboration and Characterization of Pb-Doped Copper Oxide Thin Films
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Research
, Volume: 10( 4) DOI: 10.37532/2320-6756.2022.10(4).270

Elaboration and Characterization of Pb-Doped Copper Oxide Thin Films

*Correspondence:
N. Touka Laboratory of Materials and Sustainable Development, Department of Physics, University of Bouira, Algeria, E-mail: [email protected]

Received:April 01, 2022, Manuscript No. tspa-22-59292; Editor assigned: April 04, 2022, PreQC No. tspa-22-59292 (PC) ; Reviewed: April 18, 2022, QC No. tspa-22-59292 (QC); Revised: April 20, 2022, Manuscript No. tspa-22-59292 (R); Published: April 28, 2022, DOI: 10.37532/2320-6756.2022.10(4).270

Citation:N. Touka. Elaboration and Characterization of Pb-Doped Copper Oxide Thin Films. J Phys Astron.2022;10(4):270.

Abstract

Sol-gel thin films of undoped CuO and Pb-doped CuO were deposited using the spin coating method. In three thin layers, the lead was introduced at two different concentrations (5% and 7%). The films produced were in the tenorite phase, with high purity and crystallinity, according to XRD structural characterization. The grain size of CuO films is affected by the Pb concentration and decreases as the Pb concentration increases, although the strain and dislocation density values increase as the Pb doping ratio increases. The structure of CuO was confirmed in all films by Raman and FTIR studies. In the presence of Pb dopants, SEM examinations revealed cubic and spherical nanostructured surfaces. With the value of the optical band gap increasing from 1.92 eV to 2.74 eV, there was a significant association between increasing Pb doping concentration and widening of the optical band gap.

Retraction Note

The article entitled “Elaboration and Characterization of Pb-Doped Copper Oxide Thin Films” has been accepted for publication in the Journal of Physics and Astronmy considering the statements provided in the article as personal opinion of the author which was found not having any conflict or biasness towards anything. As the article was a perspective one, information provided by the author was considered as an opinion to be expressed through publication. Publisher took decision to make the article online solely based on the reviewers suggestion which considered the article not but a personal opinion of the author. However, it is found that the author have some personal concerns and issues, therefore, being retracted from the journal.