Efficiency and stability of spectral sensitization of boron-doped-diamond electrodes through covalent anchoring of a donor-acceptor organic chromophore (P1)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F16%3A43901704" target="_blank" >RIV/60461373:22330/16:43901704 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/16:00460165 RIV/61388955:_____/16:00460165 RIV/61388963:_____/16:00460165 RIV/68407700:21460/16:00304393 and 2 more
Result on the web
<a href="http://dx.doi.org/10.1039/c6cp02209j" target="_blank" >http://dx.doi.org/10.1039/c6cp02209j</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/c6cp02209j" target="_blank" >10.1039/c6cp02209j</a>

Result language
angličtina
Original language name
Efficiency and stability of spectral sensitization of boron-doped-diamond electrodes through covalent anchoring of a donor-acceptor organic chromophore (P1)
Original language description
A novel procedure is developed for chemical modification of H-terminated B-doped diamond surfaces with a donor-pi-bridge-acceptor molecule (P1). A cathodic photocurrent near 1 mu A cm(-2) flows under 1 Sun (AM 1.5) illumination at the interface between the diamond electrode and aqueous electrolyte solution containing dimethylviologen (electron mediator). The efficiency of this new electrode outperforms that of the non-covalently modified diamond with the same dye. The found external quantum efficiency of the P1-sensitized diamond is not far from that of the flat titania electrode sensitized by a standard organometallic dye used in solar cells. However, the P1 dye, both pure and diamond-anchored, shows significant instability during illumination by solar light. The degradation is a two-stage process in which the initially photo-generated products further decompose in complicated dark reactions. These findings need to be taken into account for optimization of organic chromophores for solar cells in general.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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