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The manageable formation of the gradient-layered polymer/fullerene blend films via the addition of bathocuproine and their applications in organic solar cells.
- Source :
-
Physica Status Solidi. A: Applications & Materials Science . Jun2012, Vol. 209 Issue 6, p1150-1156. 7p. - Publication Year :
- 2012
-
Abstract
- We report the manageable formation of the gradient-layered poly(3-hexylthiophene) and [6,6]-phenyl C61-butyric acid methyl ester (P3HT/PCBM) blend film by spin coating via introducing bathocuproine (BCP) into the mixed P3HT/PCBM solution. The BCP can improve the aggregation and thereby the preferential precipitation of PCBM during the spin-coating process, leading to the gradient-layered phase separation of P3HT and PCBM. The regular solar cells using the gradient-layered ternary blend films gave poor photovoltaic performance, due to the mismatch between the polarity of the regular-device structure and the vertical composition profile of the ternary blend film. By contrast, in the inverted solar cell, the gradient-layered ternary blend film could provide the increased device performance over the conventional bulk heterojunction binary blend films. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 18626300
- Volume :
- 209
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Physica Status Solidi. A: Applications & Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 86368559
- Full Text :
- https://doi.org/10.1002/pssa.201127630