نتایج جستجو برای: doping additive

تعداد نتایج: 93371  

Journal: :Gazi university journal of science part a:engineering and innovation 2023

In this study, undoped and Ti-doped ZnO thin films grown by SILAR (Successive Ionic Layer Adsorption Reaction) method were investigated using XRD, SEM, linear absorbance electrical characterization. The effect of doping ratio was determined changing Ti ratios from 0.05 to 0.20. addition, the with same additive annealed at 300°C for 15 minutes in nitrogen environment. Thus, effects both annealin...

2007
Jamil Tahir-Kheli William A. Goddard

Ab initio density functional calculations on explicitly doped La2−xSrxCuO4 find that doping creates localized holes in out-of-plane orbitals. A model for cuprate superconductivity is developed based on the assumption that doping leads to the formation of holes on a four-site Cu plaquette composed of the out-of-plane A1 orbitals apical O pz, planar Cu d3z2−r2, and planar O p . This is in contras...

Journal: :وقایع علوم کاربردی ورزش 0
delia nica-badea faculty of medicinal and behavioral sciences, department of sport and health, constantin brancusi university, târgu-jiu, romania

doping is the use of drug for the purpose of improving performance in general and sports performance in particular. rejection or acceptance of the use of banned substances by athletes is determined by internal factors that are subjective and external or social. against this background, the present study examined social risk factors as determinants of intention (temptation) to use banned substan...

Journal: :Cumhuriyet Science Journal 2021

In this work, YBa2‑xCsxCu3O7‑δ (x= 0.05, 0.1, 0.2 and 0.3 wt. %) samples were prepared by using solid state reaction method. Some electrical, physical structural properties of these compounds examined SEM (scanning electron microscopy), XRD (X-ray diffraction), electrical resistivity, critical current density AC susceptibility measurements, respectively. On the basis it would seem that increasi...

Journal: :Inorganic Chemistry 2021

The controlled incorporation of dopants like copper into ZnO nanowires (NWs) grown by chemical bath deposition (CBD) is still challenging despite its critical importance for the development piezoelectric devices. In this context, effects addition nitrate during CBD NWs on Au seed layers are investigated in detail, where zinc and hexamethylenetetramine used as standard precursors ammonia an addi...

آزاده اعظمی, , محسن حکیمی, , مهین اشراقی, , هادی سلامتی, , پرویز کاملی, ,

 In this paper after introduction of manganites, we have studied the effect of particle size and doping on structural, magnetic and magnetoresistance of LSMO manganite samples. The magnetoresistance measurements show that, by decreasing the particle size LFMR increases. Also the results show that the LFMR increases at low doping levels and decreases at high doping levels. The spin dependent tun...

بهرامی, امیر , زرگر شوشتری, مرتضی , فربد, منصور ,

In this research, the effect of silver doping on 2223 phase of ceramic superconductor Bi1.6Pb0.4Sr2Ca2Cu3Oδ (BSCCO) has been investigated. To synthesis the samples, we used solid-state reaction method and two different doping methods, namely, doping samples during making processes (batches No.1) and doping samples after making superconductor (batch No.2). With doping Ag to BSCCO, the criti...

دادمهر, وحید , صائب , فاطمه , فلاحتی, سمیه ,

  Samples of YBa2Cu3-xAgxOy with x=0, 0.1, 0.15, 0.2, 0.3 and samples of YBa2Cu3-xAlxOy with x=0, 0.01, 0.02, 0.03 and 0.045 are prepared by the sol-gel method. Structural and superconducting properties of samples are studied by electrical resistivity (R-T), X-ray diffraction (XRD) and scanning electron microscopy (SEM). All the samples show transition to superconducting state and the transitio...

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