Design of Transparent Anodes for Resonant Cavity Enhanced Light Harvesting in Organic Solar Cells
Nicholas P. Sergeant(Stanford University), Afshin Hadipour(IMEC), Bjoern Niesen(IMEC), David Cheyns(IMEC), Paul Heremans(IMEC), Peter Peumans(Stanford University), Barry P. Rand(IMEC)
Cited by 241
Abstract
The use of an ITO-free MoO3/Ag/MoO3 anode to control the photon harvesting in PCDTBT:PC70BM solar cells is proposed. At first sight, the fact that these anodes possess reduced far-field transmission compared to ITO may seem to be a disadvantage. But, despite this, we show that by carefully tuning the resonant optical cavity we can enhance the external quantum efficiency close to the band edge of PCDTBT, resulting in high photocurrent and power conversion efficiency on par with ITO.
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