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عنوان مقاله به فارسی: بررسی اثر اندازه قطر نانوالیاف اکسید روی الکتروریسی به عنوان آند در بازده نهایی سلولهای خورشیدی حساس شده به نقاط کوآنتمی کادمیوم سولفید (QDSSCs)
نویسندگان عضو دانشگاه
نویسندهنقشعضویت
عبدالمحمد قلمبردزفولی نویسنده اولهیأت علمی
فرزانه السادات قاضی زادهنویسنده دومدانشجو
نویسندگان خارج از دانشگاه
عنوان مقاله به انگلیسی : Study on the effect of diameter size of electrospun ZnO nanofibers as a photo anode on the efficiency of CdS Quantum dot sensitized solar cells(QDSSCs)
ارائه شده در کنفرانس : Electrospinning, Principles, Possibilities and Practice 2013 (IOP2013)
زبان ارائه : فارسی
نحوه ارائه : ارائه پوستر و چاپ کامل مقاله
وضعیت نسخه موجود : کاغذی
شماره صفحه چاپ مقاله در مجموعه مقالات : از : 0 تا 0
واژگان کلیدی : ZnO,CdS,Quantum Dots, Solar Cells,Efficienc, Nanofiber, Electrospinning
چکیده فارسی :
چکیده انگلیسی :

In this research a progress report of ZnOnanofibers production process withthe goal of application in QDSSCs by electrospinning method is presented. Inthe recent years, ZnO as a wide band gap semiconductor has attracted formany applications, specially suitable for n-type electrode materials of solarcells. When a 1-D ZnO (like nanofibers) is used as a n-type electrode, it has anumber of advantages, such as a high transmittance in the visible wavelengthregion, a larger surface area and the high electron mobility along the growthdirection, and in result these structures enhance the efficiency of the solarcells. In this paper, at the same time producing the electrospunZnOnanofibers, the voltage applied to the needle (15, 16, 17, 18 kV) and thedistance of the needle to the collector (5, 10, 15, 20 cm) were investigated as anindependent variables and the diameter of ZnOnanofibers was as adependent variable. Also to finding a relationship between these parameters, the factorial design and regression method of SPSS 16 software has been used.
In conclusion all the result show, we can control the size of fibers diameterand able to produce nanofibers in the range of a few hundred of nanometers. These nanofibers (on the FTO substrate), after the heat treatment at 500oCand sensitizing to CdS quantum dots by 5 circle SILAR method, will beturned to photo anodes. Every anode with a cathode and the polysulfideelectrolyte, were attached together and make a solar cell. The results of I-Vdiagrams of all the solar cells has been demonstrated, the cell with theminimum of nanofibers diameter, has the maximum of efficiency and theshort circuit current. Finally, all the nanofibers and quantum dots in thispaper were investigated by SEM and TEM methods respectively to study theirmorphology.
 

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