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Article
Studying the Effect of Annealing Temperature on some Physical Properties of In2O3 Thin Films

Authors: Duaa A. Mohammed --- Muslim F. Jawad
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2018 Volume: 36 Issue: 2 Part (B) Engineering Pages: 124-127
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

In this study, In2O3 thin films were deposited on quartz substrates bypulsed laser deposition technique at room temperature and followed bythermally annealing at 300℃, 400℃ and 500℃ for 1 hour. The optical bandgap was found to increase with the annealing temperature from 3.5 to 3.85 eVand the transmittance was observed above 90%. XRD results show that the filmsare polycrystalline in nature and crystallizes with preferred orientation (222).SEM images show that the films are high homogenous and they containeduniformly distributed small grains.


Article
Investigation of pyrolysis method for preparing CdO:In2O3 thin films gas sensor for NO2 gas
دراسة طريقة الرش الكيميائي الحراري لتحضير الاغشية الرقيقة من اوكسيد الكادميوم:اوكسيد الانديوم كمتحسس لغاز ثاني اوكسيد النتروجين

Author: Shatha Shammon Batros
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2015 Volume: 33 Issue: 6 Part (B) Scientific Pages: 1134-1144
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

A novel CdO:In2O3nano composite has been synthesized by a pyrolysis method. The prepared nano composites have been carefully characterized using X ray diffraction and atomic force microscopy. The obtained results showed that the synthesized nano compositeCdo:In2O3 at optimum conditions has excellent grains. It was found that synthesized CdO:In2O¬3nano composite can be used as NO2 gas sensing to exhibit the highest sensitivity for NO2 at 200°C. The constructed sensor showed a very low detection limit of 5 ppm .

المتراكب CdO:In2O3 النانوي تم تحضيره بطريقة التحلل الكيميائي الحراري (PYROLYSIS) تم تقييم المتراكب النانوي المحضر بدقة باستخدام حيود الاشعة السينية ومجهر القوى الذرية . النتائج المستحصلة تشير الى ان مسار تحضير المتراكب CdO:In2O3 النانوي المستحصل عند الظروف المثالية اعطى نتائج ممتازة لاحجام نانوية يمكن استخدامها كمتحسس لغاز NO2واعطت افضل النتائج للتحسسية عند درجة حرارة تشغيل للمتحسس تساوي 200 o Cوعند نسبةتركيز للغاز قليلة و هي.5ppm


Article
Influence the number of laser pulses and annealing temperature and the Structure and optical properties of In2O3: CdO films prepared laser induce plasma

Authors: Kadhim A. Aadim --- Nada K. Abbas --- Ashwaq T. Dahham
Journal: Iraqi Journal of Science المجلة العراقية للعلوم ISSN: 00672904/23121637 Year: 2018 Volume: 59 Issue: 3C Pages: 1567-1576
Publisher: Baghdad University جامعة بغداد

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Abstract

In this Research, (In2O3: CdO) films were prepared using pulsed laser deposition (PLD) method on glass substrate at room temperature deposited at laser influence 500mJ/cm2with different shoots N= (200,300,400,500and600). the structural, and the optical properties and the films are studied with different annealing temperatures (523and 623) K. Optical measurements and the films were analyzed by UV-VIS absorption spectra. The structural properties of samples were investigated by x-ray diffraction patterns of the films and show that the films and polycrystalline Structure with all shoots. Transmittance spectrum found is equal to 93.17%, refractive index range is 1.635 and energy gap range is 2.75-3.15ev.

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