Fabrication, Optical Modeling, and Color Characterization of Semitransparent Bulk-Heterojunction Organic Solar Cells in an Inverted Structure
✍ Scribed by Tayebeh Ameri; Gilles Dennler; Christoph Waldauf; Hamed Azimi; Andrea Seemann; Karen Forberich; Jens Hauch; Markus Scharber; Kurt Hingerl; Christoph J. Brabec
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 326 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1616-301X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Semitransparent inverted organic photodiodes are fabricated with a Baytron PH500 ethylene‐glycol layer/silver grid as the top electrode. Reasonable performances are obtained under both rear‐ and front‐side illumination and efficiencies up to 2% are achieved. Some light is shed on visual prospects through optical simulations for a semitransparent device of poly(3‐hexylthiophene) (P3HT) and the C60 derivative 1‐(3‐methoxycarbonyl)propyl‐1‐phenyl[6,6]C~71~ (PC70BM) in the inverted structure. These calculations allow the maximum efficiency achievable to be predicted for semitransparent cells based on P3HT:PC70BM versus the transparency perception for a human eye. The simulations suggest that low‐bandgap materials such as poly[2,6‐(4,4‐bis‐(2‐ethylhexyl)‐4H‐cyclopenta[2,1‐b;3,4‐b′]dithiophene)‐alt‐4,7‐(2,1,3‐benzothiadiazole)] (PCPDTBT) have a better potential for semitransparent devices. In addition, the color range recognized by the human eye is predicted by the optical simulation for some semitransparent devices including different active layers.