کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1441539 | 988094 | 2012 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: The double-edged function of UV light in polymer solar cells with an inverted structure The double-edged function of UV light in polymer solar cells with an inverted structure](/preview/png/1441539.png)
Inverted polymer solar cells with a configuration of ITO/ZnO/PBDTTT-C:PC71BM/MoO3/Ag were fabricated and a power conversion efficiency of 6.64% was achieved under AM 1.5G irradiation (89 mW/cm2). The function of UV light was systematically investigated by tracking the changes of the device performance for 212 min under continuous illumination with or without UV light. We found that UV light plays a decisive role not only in the photo-annealing step, leading to a remarkable increase of PCE by increasing ZnO conductance, but also in the photo-bleaching step, causing slow degradation of solar cells through photo-oxidation of the conjugated polymer.
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► Inverted polymer solar cells with a configuration of ITO/ZnO/PBDTTT-C:PC71BM/MoO3/Ag were fabricated with 6.64% efficiency.
► UV light in the photo-annealing step leads to a remarkable increase of PCE by increasing ZnO conductance.
► UV light in the photo-bleaching step causes slow degradation of solar cells through photo-oxidation of the conjugated polymer.
Journal: Synthetic Metals - Volume 162, Issue 24, 31 December 2012, Pages 2302–2306