کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1267374 972345 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
P3HT based solution-processed pseudo bi-layer organic solar cell with enhanced performance
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
P3HT based solution-processed pseudo bi-layer organic solar cell with enhanced performance
چکیده انگلیسی

We present a solution-processed pseudo bi-layer organic solar cell with poly(3-hexyl thiophene) (P3HT) as donor and indene-C60 bisadduct (ICBA) as acceptor. The devices were fabricated by sequential processing of the active components followed by a thermal annealing treatment. An efficiency of 5.9% was achieved under AM 1.5G irradiation (1000 W/m2). The obtained efficiency is attributed to an enhanced nanomorphology that arises from the inter-diffusion of the ICBA molecules into a layer of pre-organised polymer (P3HT) and also due to the subsequent crystallisation of the ICBA molecules. These processes facilitate efficient charge generation and extraction. Time of flight-secondary ion mass spectroscopy (TOF-SIMS) depth profiling was carried out for different thermal annealing treatments of these pseudo bi-layer devices, which reveals full inter-diffusion of ICBA into the polymer P3HT. Photo-CELIV (charge extraction by linearly increasing voltage) studies elucidates that the thermal annealing imparts crystallinity to the fullerene phase which results in the improvement of charge carrier mobility.

Figure optionsDownload as PowerPoint slideHighlights
► Solution-processed pseudo bi-layer organic solar cell.
► Sequential processing of the active components followed by a thermal annealing treatment.
► Inter-diffusion of the ICBA molecules into a layer of pre-organised polymer, P3HT.
► Thermal annealing imparts crystallinity to the fullerene phase which results in the improvement of charge carrier mobility.
► Pseudo bi-layer organic solar cell exhibits an efficiency of 5.9%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Organic Electronics - Volume 13, Issue 10, October 2012, Pages 2008–2016
نویسندگان
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