کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
79304 49351 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stability comparison: A PCDTBT/PC71BM bulk-heterojunction versus a P3HT/PC71BM bulk-heterojunction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Stability comparison: A PCDTBT/PC71BM bulk-heterojunction versus a P3HT/PC71BM bulk-heterojunction
چکیده انگلیسی

In this study, the physical and chemical degradation behaviors of active layers based on semicrystalline p-type polymer (poly(3-hexylthiophene) (P3HT)) and [6,6]-phenyl C71 butyric acid methyl-ester (PC71BM) are compared with the corresponding behaviors of amorphous p-type polymer of poly[N-9″-hepta-decanyl-2,7-carbazole-alt-5,5-(4′,7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)] (PCDTBT) and PC71BM. A surface morphological study of the active layer (from Atomic force microscopy (AFM) and scanning electron microscopy (SEM) images) and a chemical analysis (from X-ray photoelectron spectroscopy (XPS) and Energy dispersive X-ray spectroscopy (EDS) results) help explain why PCDTBT/PC71BM bulk heterojunction (BHJ) has a higher level of long-term stability under thermal and air stability experimental conditions than a P3HT/PC71BM-based BHJ. The power conversion efficiency for a PCDTBT/PC71BM BHJ cell and a P3HT/PC71BM BHJ cell decreased by 11% and 21%, respectively, after a thermal stability test and by 68% and 78%, respectively, after a 300 h air stability test.

Graphical Abstract.Figure optionsDownload as PowerPoint slideHighlights
► Polymer solar cells with a PCDTBT/PC71BM BHJ have an efficient device with remarkable long-term and high-temperature stability.
► The PCDTBT/PC71BM BHJ cells are highly resistant to the physical and chemical degradation.
► The morphology is maintained and the chemical bonding is conserved at the BHJ active layer after thermal and air stability test.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 101, June 2012, Pages 249–255
نویسندگان
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