Small-Molecule Photovoltaics Based on Functionalized Squaraine Donor Blends

Two squaraine (SQ) donor molecules with different absorption bands are blended together for better coverage of the solar spectrum. The blend SQ device shows a significant improvement compared with single SQ donor devices. By applying a solvent annealing process and a compound buffer layer, a power‐c...

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Bibliographic Details
Published in:	Advanced materials (Weinheim) Vol. 24; no. 15; pp. 1956 - 1960
Main Authors:	Xiao, Xin, Wei, Guodan, Wang, Siyi, Zimmerman, Jeramy D., Renshaw, Christopher K., Thompson, Mark E., Forrest, Stephen R.
Format:	Journal Article
Language:	English
Published:	Weinheim WILEY-VCH Verlag 17-04-2012 WILEY‐VCH Verlag
Subjects:	Annealing Blends Cyclobutanes - chemistry Devices Electric Conductivity Electric Power Supplies Illumination organic photovoltaics Phenols - chemistry Polymer blends small molecules Solar cells Solvents squaraine dyes Sun Sunlight
Online Access:	Get full text
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Summary:	Two squaraine (SQ) donor molecules with different absorption bands are blended together for better coverage of the solar spectrum. The blend SQ device shows a significant improvement compared with single SQ donor devices. By applying a solvent annealing process and a compound buffer layer, a power‐conversion efficiency of 5.9 ± 0.3% is achieved under 1 sun illumination.
Bibliography:	istex:5690FF1F794DE0707459C07845D605B396B1F23D ArticleID:ADMA201104261 ark:/67375/WNG-TNC5XGZ0-W ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0935-9648 1521-4095
DOI:	10.1002/adma.201104261