Abstract
A trilayer ultrathin-film model concept had been adapted to maximize optical absorption of organic photovoltaic cells (OPVs) with a structure of transparent-electrode/highly-absorbing active material/metal. As demonstrated, device with the structure of ITO/Lead phthalocyanine (SubPc):Buckerminster fullerene (C60) (1:4 wt%)/Al had been studied. It is found that more than 90% optical absorption can be obtained in the device with a broaden wavelength range of 480-620 nm. The calculated optical electric fields shows that the unusually high optical absorption is due to the enhanced optical interference inside the OPVs device. This work paved a new way to design the OPVs device.
| Original language | English |
|---|---|
| Pages (from-to) | 184-188 |
| Number of pages | 5 |
| Journal | Optics Communications |
| Volume | 342 |
| DOIs |
|
| State | Published - 1 May 2015 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Optical absorption
- Organic photovoltaic cells
- SubPc:C60
- Ultrathin-film optical coating
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