کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1440694 1509376 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of organic solar cells using various sheet resistances of indium tin oxide and different cathodes: Aluminum, silver
ترجمه فارسی عنوان
اثر سلول های خورشیدی آلی با استفاده از مقاومت های ورق مختلف ورق اکسید قلع و کاتد های مختلف: آلومینیوم، نقره
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
چکیده انگلیسی


• The effect of organic solar cells by using different electrodes was studied.
• The efficiency of device using ITO with sheet resistance of 15 Ω/sq has a better efficiency.
• The performance of organic solar cells can be improved above 10% when substituting Ag for Al as cathode.
• The shorting problem of device using Ag as cathode is also investigated.

The effect of different electrodes on organic solar cells (OSCs) performance was studied. Various sheet resistances of indium tin oxide (ITO) were used as an anode to find out which is suitable for OSCs application. The efficiency of OSCs based on small molecule material using different ITO substrates is almost the same due to the low absorption efficiency of active layer. In contrast, the efficiency of device based on polymer material using ITO (15 Ω/sq) has a better efficiency, which is attributed to reaching the optimal balance between the light transmittance and the carrier extraction. In cathode, the commonly used for OSCs are aluminum (Al) and silver (Ag), respectively. When substituting Ag for Al as a cathode, the efficiency of device based on copper phthalocyanine and C60 increased from 0.71% to 0.86% and the efficiency of device based on boron subphthalocyanine chloride and C60 increased from 2.61% to 2.96%. The performance enhancement is mainly ascribed to the current density (Jsc) improvement which is resulted from the difference of optical characteristic between the Al and Ag. The reflectance of Ag is higher than that of Al above wavelength of 405 nm, indicating that the light reflected from the Ag is more than that of Al. As a result, the more light can be absorbed in the active layer, leading to the efficiency of device using Ag as a cathode have above 10% improvement. However, the most commonly used cathode in OSCs is Al rather than Ag, which is also investigated.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 201, March 2015, Pages 25–29
نویسندگان
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