Keywords

carboxylate, 1 3 4-oxadiazole, metal complexes, spectroscopy

Export bibliographic record

Choose an application

• Reference Manager
• EndNote
• BibTex

Keywords

Mixed convection, Laminar flow, Channel, Square cavity, Rotating cylinder.

Export bibliographic record

Choose an application

• Reference Manager
• EndNote
• BibTex

Keywords

Abstract The study took up in her objectives and her methodology user for study an important part of the system services community only a health care services in hospitals in order to study the province, career for her identify appropriate distribution of the expectations of the population of the city and population alternating them from the regions next to identify areas its influence career the study were based in determining the province, career for health services on many scientific styles and the most important of the field study through the field survey for business field form the questionnaire the study analytical for the region career it has built services health care in the city of Karbala Almuqadasa interaction spatial between the city and areas of its influence of the neighboring provinces through this search determine the province, career for hospitals services in the city of Karbala Almuqadasa and influence areas of its home to the outside of the limits of the city to include the regions neighboring from inside maintain and beyond, it turned through the field survey to government hospitals receive a large number of reviewers in the rate of, 37% and from outside the provinces have solved Najaf ranked first in the rate of, 1.1% province Kirkuk ranked final in the rate of, 0.01% either for civil hospitals the ratios of varying in the hospital sponsor came to spend Alhndea rank the first as the most provinces maintain reluctant to the city Center by, 33.1% and from outside maintain came to the province of Babylon as the most provinces neighboring reluctant by, 1.3% The hospital of Alkafel was province Basra more provinces frequency its population to the hospital by, 16% and least province Diyala by, 0.02% and the case repeated in Alabass hospital civil by the province of Babylon first rank as the most provinces reluctant to the hospital by, 7% and replaced province Diyala rank final by, 0.1%

Export bibliographic record

Choose an application

• Reference Manager
• EndNote
• BibTex

Keywords

Single-Metal-semiconductor-metal, Photodetectors, Al0.08In0.08Ga0.84N, PA-MBE, SBH, QE, NEPAbstractMetal-semiconductor-metal, MSM photodetectors, PDs based on gold and silver, Au, Ag/Al0.08In0.08Ga0.84N, commercial sample/, Au, Ag have been fabricated and characterized. The effect of annealing temperature of As deposit, 400, 500, and 600 0C for 30 min on the topography and electrical properties of Au contact on Al0.08In0.08Ga0.84N thin film have been characterized and optimized using Current-Voltage, I-V characteristic. Schottky barrier height, SBH and ideality factor, n of Au/ Al0.08In0.08Ga0.84N interface were 1.223 eV and 1.773 at 50 0C annealing temperature for 30 min respectively, andit is found that contact hasa high-quality surface. Also, with the same procedure, the effect of annealing time of 15, 30, 45 minutes, and 1 hour have been studied and optimized. The results revealed that the best annealing time is 30 min which hasthe highest SBH. Au contact compared with Ag contact used to first time as best our knowledge with the optimal condition to select the best metal for MSM photodetectors, PDs. The ideal characterization of Au, Ag/AlInGaN/Au, Ag MSMPDs on Si substrate depend on responsivities of 0.201 and 0.153 A W-1, quantum efficiencies of 71% and 57%, and NEPs of 3.55×10-4 and 1.45×10-3W-1, respectively have been also studied compared. The height SBH and QE for thesamples grown on Si was at Au contact which proposed to use in such optoelectronic devices.IntroductionAlthough GaN hasmany advantages in many optoelectronic devices application however Quaternary, AlInGaN thin films consider as promising material and itattracted much research interest because theyallow almost independent control of the lattice mismatch and band off stein AlInGaN-based heterostructures. it has an attractive topic to be used in many applicationsfor any scientific research, such as optoelectronic devices operatein a wide range of the electromagnetic spectrum. it is a benefit due to the high-quality structures and strong ultraviolet emission at RT, it also allows more freedom and independent control regarding energy gap and latticesconstant [1, 2].Metal-semiconductor-metal, MSM has been suggested in this work because of its performance. It isformed from two schottky contacts like fingers that deposit on the top of the surface as shown in Figure, 1 [3].

Export bibliographic record

Choose an application

• Reference Manager
• EndNote
• BibTex