hazem95

أ. د/ حازم محمود على درويش المشنب

استاذ -

كلية العلوم

العنوان: جامعة سوهاج - كلية العلوم - قسم الفيزياء

16

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أستاذ الفيزياء بكلية العلوم بجامعة سوهاج


2020-03-18 04:40:27
الفيديو الثاني 2 علوم بيولوجي وجيولوجيا 16-3-2020
تم نشر الفيديو الثاني https://youtu.be/O52gp5fI5TA إقراء المزيد

2020-03-16 17:45:36
محاضرات تدريس عن بعد
طلابي الأعزاء نظرا للظروف التي نمر بها وحفاظاً على مصلحتكم سوف اقوم بعون الله بتسجيل المحاضرات لكم ووضعها على هذه الصفحه يسعدني تواصلكم معي مع اطيب امنياتي لكم بالتوفيق والسداد بإذن الله ا. د حازم محمود المشنب إقراء المزيد

2020-03-23 19:05:56 | الكلمات المفتاحية thermal evaporation, MoO3−x thin films, gas sensor,
Promising molybdenum trioxide films for optically detectable gas sensor and solar cell applications
Abstract Sub-stoichiometric molybdenum trioxide (MoO3−x) thin films were grown by thermal evaporation techniques on glass, single crystal silicon Si and Fluorine doped Tin Oxide (FTO) glass substrates with different thicknesses. It was found that, Oxygen vacancies play an important role on properties of MoO3−x films. The structural properties of these films were analyzed by means of x-ray diffraction, energy dispersive ... إقراء المزيد

2018-09-23 21:35:17 | الكلمات المفتاحية CdTe solar cell,
Theoretical study of  ZnS/CdS bi-layer for thin-film CdTe solar cell
The performance of CdTe solar cells is strongly limited by the thickness of CdS window layer. A higher short-circuit current density might be achieved by decreasing the thickness of CdS layer as a result of reducing the absorption losses that take place in this layer. However, it is difficult to obtain uniform and pin-hole free CdS layers thinner than 50 ... إقراء المزيد

2018-09-24 04:48:55 | الكلمات المفتاحية morphological and, structural,
Effect of the synthesis conditions on the structural, morphological and optical properties of Bi2Te2.7Se3 nanoparticles
Beside their promising utility as thermoelectric generators, Bi2Te3 and related compounds have several applications in electronic and optoelectronic devices. In this work, Bi2Te2.7Se0.3 nanoparticles (NPs) were successfully prepared via physical vapor deposition technique at different conditions of flow rate and temperature. The x-ray diffraction patterns show that, the NPs crystallize in a rhombohedral crystal structure with preferable growth along the ... إقراء المزيد

2018-09-24 04:59:22 | الكلمات المفتاحية Optical and photocatalytic,
Optical and photocatalytic properties of sol gel nano particles Co:TiO2 thin films
ABSTRACT Co-TiO2 nanoparticle thin films were synthesized by sol-gel method. The structural properties of the synthesized sample were studied using FTIR, XRD, and TEM. XRD confirmed the presence of double-phase anatase/rutile for the TiO2 nanoparticles. Effect of annealing temperature and exposure to microwave energy on the optical properties were studied for transparent conductive oxide (TCO) application. The optical energy gap ... إقراء المزيد

2018-09-25 08:54:34 | الكلمات المفتاحية The DC conductivity,
Investigation of the structural, optical and electrical transport properties of n-doped CdSe thin films
ABSTRACT THIN FILMS OF (CDSE)90(IN2O3)10, (CDSE)90(SNO2)10 AND (CDSE)90(ZNO)10 HAVE BEEN GROWN ON GLASS SUBSTRATES BY THE ELECTRON BEAM EVAPORATION TECHNIQUE. IT HAS BEEN FOUND THAT UNDOPED AND SN OR IN DOPED CDSE FILMS HAVE TWO DIRECT TRANSITIONS CORRESPONDING TO THE ENERGY GAPS EG AND EG + DUE TO SPIN–ORBIT SPLITTING OF THE VALENCE BAND. THE ELECTRICAL RESISTIVITY FOR N-DOPED CDSE ... إقراء المزيد

2 علوم بيولوجي وجيولوجيا 16-3-2020
A SOAP BUBBLE APPEARS GREEN (Λ = 540 NM) AT THE VIEW POINT ON ITS FRONT SURFACE NEAREST THE VIEWER. WHAT IS ITS _MINIMUM THICKNESS_? ASSUME _N_ = 1.35._A SOAP BUBBLE APPEARS GREEN (Λ = 540 NM) AT THE VIEW POINT ON ITS FRONT SURFACE NEAREST THE VIEWER. WHAT IS ITS MINIMUM THICKNESS_? ASSUME _N_ = 1.35.A SOAP BUBBLE APPEARS ... إقراء المزيد

2018-09-24 10:13:36 | كهربية ومغناطيسية
طلاب الفرقة الأولى علوم طبيعية
مراجعة ما سبق دراسته بمقرر الفيزياء الكهربية في المرحلة الثانوية إقراء المزيد