Abstract
Trap-assisted recombination is one of the main loss mechanisms in bulk-heterojunction (BHJ) solar cells. Results suggest that introducing a near infrared (NIR) polymer into the 2,3-bis(3-(octyloxy)phenyl)quinoxaline (PIDTTQ):[6,6]-phenyl C70 butyric acid methyl ester (PC70BM) host system suppresses trap-assisted recombination in the binary blend, leading to a significant improvement of ≈60% in power conversion efficiency for ternary organic solar cells at low light intensity. © 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original language | English |
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Journal | Advanced Energy Materials |
Volume | 5 |
Issue number | 24 |
DOIs | |
Publication status | Published - 2015 |
Keywords / Materials (for Non-textual outputs)
- Butyric acid
- Heterojunctions
- Infrared devices
- Lanthanum compounds
- Bulk heterojunction (BHJ)
- Low light
- Organic solar cell
- Power conversion efficiencies
- recombination
- Recombination mechanisms
- Ternary blends
- Trap-assisted recombinations
- Solar cells