کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5435587 | 1509356 | 2016 | 5 صفحه PDF | دانلود رایگان |
- n-Doping of fullerene layers from solution using cationic dyes.
- Enhanced electron extraction from nanoparticulate organic solar cells.
- Quantitative investigation of excess charge carrier densities.
Fullerene interlayers are a common approach to improve electron extraction in organic solar cells. In this work, we investigate n-doping of solution processed fullerene derivatives by the cationic dye rhodamine B (RhB), formerly known from vacuum device fabrication only. The doping efficiency under illumination is quantified by electron paramagnetic resonance yielding 0.3% for PCBM, and 0.02% for bis-PCBM and ICBA. Incorporated into nanoparticulate organic solar cells, n-doped fullerene layers enhanced the electron extraction and improved the devices' power conversion efficiencies.
211
Journal: Synthetic Metals - Volume 221, November 2016, Pages 201-205