Exciton Dissociation and Charge-Transport Enhancement in Organic Solar Cells with Quantum-Dot/N-doped CNT Hybrid Nanomaterials

Exciton Dissociation and Charge-Transport Enhancement in Organic Solar Cells with Quantum-Dot/N-doped CNT Hybrid Nanomaterials

The incorporation of InP quantum‐dot/N‐doped multiwalled carbon nanotube (QD:NCNT) nanohybrids in the active layer of poly(3‐hexylthiophene)/indene−C60 bisadduct (P3HT/ICBA) bulk‐heterojuction solar cells enhances VOC and JSC. The QDs encourage exciton dissociation by promoting electron transfer, wh...

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Veröffentlicht in:Advanced materials (Weinheim) 2013-04, Vol.25 (14), p.2011-2017
Hauptverfasser: Lee, Ju Min, Kwon, Byoung-Hwa, Park, Hyung Il, Kim, Hoyeon, Kim, Min Gyu, Park, Ji Sun, Kim, E Su, Yoo, Seunghyup, Jeon, Duk Young, Kim, Sang Ouk
Format: Artikel
Sprache:eng
Schlagworte:
Amines - chemistry
carbon nanotubes
Energy conversion efficiency
Fullerenes - chemistry
Indenes - chemistry
nanomaterials
Nanotubes, Carbon - chemistry
organic solar cells
Quantum Dots
Quantum Theory
Solar Energy
Thiophenes - chemistry
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Zusammenfassung:The incorporation of InP quantum‐dot/N‐doped multiwalled carbon nanotube (QD:NCNT) nanohybrids in the active layer of poly(3‐hexylthiophene)/indene−C60 bisadduct (P3HT/ICBA) bulk‐heterojuction solar cells enhances VOC and JSC. The QDs encourage exciton dissociation by promoting electron transfer, while the NCNTs enhance the transport of the separated electrons and eventual charge collection. Such a synergistic effect successfully improves the power conversion efficiency (PCE) from 4.68% (reference cells) to 6.11%.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201204454