Journal article
High open-circuit voltage solid-state dye-sensitized solar cells with organic dye.
- Chen P Laboratory for Photonics and Interfaces, Institute of Chemical Sciences and Engineering, School of Basic Sciences, Swiss Federal Institute of Technology, CH - 1015 Lausanne, Switzerland.
- Yum JH
- De Angelis F
- Mosconi E
- Fantacci S
- Moon SJ
- Baker RH
- Ko J
- Nazeeruddin MK
- Grätzel M
- 2009-05-15
Published in:
- Nano letters. - 2009
English
Solid-state dye-sensitized solar cells were fabricated using an organic dye, 2-cyanoacrylic acid-4-(bis-dimethylfluoreneaniline)dithiophene (JK2), which exhibits more than 1 V open-circuit potential (V(oc)). To scrutinize the origin of high voltage in these cells, transient V(oc) decay measurements and density functional theroy calculations of the interacting dye/semiconductor surface were performed. A negative conduction band shift was observed due to the favorable dipolar field exerted by the JK2 sensitizer to the TiO(2) surface, at variance with heteroleptic Ru(II)-dyes for which an opposite dipole effect was found, providing an increased V(oc).
- Language
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- English
- Open access status
- closed
- Identifiers
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- DOI 10.1021/nl901246g
- PMID 19438193
- Persistent URL
- https://sonar.ch/global/documents/180643
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