التفاصيل البيبلوغرافية
| العنوان: |
Fabrication of Carbon Quantum Dots/Alq3 Layer for NO2 Gas Sensor. |
| Alternate Title: |
NO2 لستشعر غاز Alq3 تصنيع نقاط الكربون الكمومية / طبقة (Arabic) |
| المؤلفون: |
Abd, Nooriyah Ahmed, Ibrahim, Omar Adnan |
| المصدر: |
Iraqi Journal of Physics; 2024, Vol. 22 Issue 2, p1-10, 10p |
| مصطلحات موضوعية: |
GAS detectors, SUBSTRATES (Materials science), SPIN coating, QUANTUM dots, NITROGEN dioxide |
| Abstract (English): |
The gas sensors were prepared using carbon quantum dots (CQDs) using an electrochemical method after mixing the CQDs with Tris (8-hydroxyquinoline) aluminum (III) (Alq3) polymer. A spin coating technique was used to deposit CQDs/Alq3 composite film on glass substrates with a ratio of 1:1. The CQDs/Alq3 gas sensor showed a sensitivity of about 24 ٪at a temperature of 300 °C, and this was calculated after measuring the change in the resistance of the samples with a response time of 2 and 8sec recovery time. The sensor showed a good response for nitrogen dioxide (NO2) gas. However, the sensitivity, response time, and recovery time for the CQDs gas sensor when exposed to NO2 gas at 300 °C were 78%, 4s, and 129s, respectively. The results showed that the best sensor CQDs/Alq3 led to a reduction in the recovery time, which shows the importance of the Alq3 polymer in improving the properties of the gas sensor. [ABSTRACT FROM AUTHOR] |
| Abstract (Arabic): |
مت عينصت سسحتم يراغلا مادختطاب طاقن مكلا ةيطقنلا ةقيرطلابرضحملا ةيئايميكورهكلا دعب نأ مت هطلخ عم رميلوب Aiq ةططاوب زاهج ءلاط ينارودلا بيطرتل مليفلا بكرملا طاقن مكلا ةيطقنلا Al٩3/ىلع زئاكر ةيجاجز تناكو ةبسنلا نيب طاقن مكلا ةيطقنلا وAlq31:1(متو ذخا ةدع بسن هذهو لضفا .ةجيتن رهظا ساسح زاغلا طاقن مكلا ةيطقنلا Alq3/ةيساسح يلاوح 42/دنع ةجرد ةرارح 033 ةجرد ةيئوم مت' اهباسح دعب سايق ريغتلا يف ةمواقم ثانيعلا عم نمز ةباجتسا 4 ةيناث نمزو دادرتسا 8 ةيناث رهظي رعشتسملا ةباجتسا ةديج زاغل NO2 يف نيح نأ ثاقوأ ةيطاسحلا ةباجتطلااو دادرتطلااو طاقنل نوبراكلا ةيمكلا دنع ضرعتلا زاغل NO4نع 033 ةجرد ةيئوم تناك % 78و 4s و 129s ىلع ،يلاوتلا ثيح ثرهظا جئاتنلا نا لضفا ساسح Alq3/طاقن مكلا ةيطقنلا ناك يدؤي ىلا ليلقت نمز دادرتسلاا اذهو لدي ىلع ةيمها ريميلوب Alq يف نيسحت صاوخ سسحتم .زاغلا. [ABSTRACT FROM AUTHOR] |
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