In this research thin films of (CdTe) have been prepared as pure and doped by Zn
with different ratios (1,2,3,4,5)% at thickness (400+25)nm with deposition rate (2±0.1)nm,
deposited on glass substrate at R.T. by using thermal evaporation in vacuum . All samples
were annealed at temperature (523,573,623,673)K at 1h.
The structural prop erties of all prepared thin films, doped and undoped have been
studied by using XRD. The analysis reveals that the structures of the films were
polycrystalline and typed cubic with a preferred orientation along (111) plane for the
undoped films with (2,3)% of zinc , and shifting (2ÆŸ) for doped films . The annealing films
at temperature 573 K and Zn:3% show decreasing in intensity at orientation along (111) with
appearing new p eaks for Z nTe & Te.
Transmittance sp ectra recorded a function of wavelength (400-1100) nm for all films
in order to calculate (know) the energy gap, kind of transitions and optical constants like
absorp tion coefficient, refractive index as a function of photon energy.
It is found that the energy gap for the allowed direct transition decreases as the
doping percentage increase, such that its value for allowed direct transition was (1.62) eV
for p ure thin films , it decreased to (1.585) eV when it dop ed with 4% . It is found that the
annealing process increases the energy gap.
من خلال دراستنا للسؤال البرلماني تبين لنا ان السؤال البرلماني يمثل اداة رقابية مهمة يتمكن النواب عن طريقها من متابعة نشاط الحكومة اضافة الى كونه قناة للتعاون بين السلطتين التنفيذية والتشريعية.
ان تنوع صور السؤال البرلماني وسهولة اجراءات طرحه وبساطتها والحيوية التي تمنحه فعالية الاداء ساهمت كثيرا في تصاعد استعماله كأداة رقابية برلمانية كما ان التطور المضطرد في الوسائل الاعلامية المرئية والمسموعة وال
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The objective of the current research is to identify the degree of awareness of the teachers of Arabic language with the requirements of sustainable development. The research sample consisted of (100) male and female teachers of the Arabic language. A 3-likert scale of (71) items grouped into practical and cognitive aspects, five trends for each aspect was designed by the researcher to explore the required data. The results showed that the level of awareness of teachers of the Arabic language was moderate of both the cognitive and practical aspects of sustainable education with means (1.69) and (1.48) respectively. The researcher presented a set of recommendations and suggestions.
The aim of the current research to determine the extent of logical intelligence in the book of chemistry for the fifth grade of science and to achieve the goal the researcher has prepared a special criterion in the areas of logical intelligence main and sub-to be included in the book after reviewing the previous literature and studies in this regard may be the final form after presentation to experts and arbitrators in the field of Educational and psychological sciences, curricula and teaching methods from (3) main areas and (21) sub-fields, then the researcher analyzed the book Bibih and applied branches and adopted the idea of both explicit and implicit as a unit of registration and repet
... Show MoreThe research dealt with the topic ' the aesthetics of design shape of interior spaces for the syndicate of physicians' as it reflects visions evolving to the level of tasting and positive interpretation for the space of work to be on a high design level.The research consisting of four chapters as follow; The first chapter examined the problem of the research contracted in the following question: Have the design shapes any role in achieving and showing the aesthetic side for the syndicate of physicians? so the goal of the research was showing the aesthetics of design shape of interior spaces for the syndicate of physicians, The chapter also included the objective spatial and temporal limits of research .Finally the terms were specified. T
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The importance of research is to be considered by highlighting the tax policy in Iraq which extended for successive measurement of the amount of tax receipts for respective periods, the research problem represents security, economic and political issues that Iraq suffered which were very difficult since Nineties of the last century until now that led to a lake of clarity in tax policy trends, volatility in it and finally reflected on the tax revenues increase or decrease. One of the main recommendations of the research is: (The necessity to develop a deliberate strategy for tax policy in Iraq which should take into account financial, economic, and social goals in appropriate way).
MA Mahde, HAA Kadhim, HN Tarish…, Pakistan Heart Journal, 2023 - Cited by 4