End-Capping Effect of a Narrow Bandgap Conjugated Polymer on Bulk Heterojunction Solar Cells

End-Capping Effect of a Narrow Bandgap Conjugated Polymer on Bulk Heterojunction Solar Cells

Device performances of BHJ solar cells based on poly[(4,4‐didodecyldithieno[3,2‐b:2’,3’‐d]silole)‐2,6‐diyl‐alt‐(2,1,3‐benzoxadiazole)‐4,7‐diyl]and PC71BM improve by capping the chain ends with thiophene fragments. This structural modification yields materials that are more thermally robust and that...

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Veröffentlicht in:Adv. Mater 2011-06, Vol.23 (21), p.2430-2435
Hauptverfasser: Park, Jin Kuen, Jo, Jang, Seo, Jung Hwa, Moon, Ji Sun, Park, Yeong Don, Lee, Kwanghee, Heeger, Alan J., Bazan, Guillermo C.
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
BHJ solar cell
conjugated polymer
Electric Power Supplies
end-capping
Hot Temperature
narrow bandgap
Physical Phenomena
Polymers - chemistry
solar (photovoltaic), solid state lighting, phonons, thermoelectric, bio-inspired, energy storage (including batteries and capacitors), electrodes - solar, defects, charge transport, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly), synthesis (scalable processing)
SOLAR ENERGY
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Zusammenfassung:Device performances of BHJ solar cells based on poly[(4,4‐didodecyldithieno[3,2‐b:2’,3’‐d]silole)‐2,6‐diyl‐alt‐(2,1,3‐benzoxadiazole)‐4,7‐diyl]and PC71BM improve by capping the chain ends with thiophene fragments. This structural modification yields materials that are more thermally robust and that can be used in devices with thicker films – important considerations for enabling the mass production of plastic solar cells.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201004629