Dye-sensitization of boron-doped diamond foam: champion photoelectrochemical performance of diamond electrodes under solar light illumination

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00447843" target="_blank" >RIV/61388955:_____/15:00447843 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/C5RA12413A" target="_blank" >http://dx.doi.org/10.1039/C5RA12413A</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/C5RA12413A" target="_blank" >10.1039/C5RA12413A</a>

Result language
angličtina
Original language name
Dye-sensitization of boron-doped diamond foam: champion photoelectrochemical performance of diamond electrodes under solar light illumination
Original language description
Diamond foams composed of hollow spheres of polycrystalline boron-doped diamond are chemically modified with two donor?acceptor type molecular dyes, BT-Rho and CPDT-Fur, and tested as electrode materials for p-type dye-sensitized solar cells with an aqueous electrolyte solution containing methyl viologen as a redox mediator. Reference experiments with flat polycrystalline diamond electrodes evidence full blocking of the methyl viologen redox reaction by these dyes, whereas only partial blocking is observed for the diamond foams. This is ascribed to sp2-carbon impurities in the foam, viz. trans-polyacetylene and graphite-like carbon. Cathodic photocurrents under solar light illumination are about 3 times larger on foam electrodes compared to flat diamond. Long-term (1?2 days) illumination of the sensitized foam electrodes with chopped light at 1 sun intensity causes an increase of the cathodic photocurrent density to ca. 15?22 ?A cm2. These photocurrent densities represent the largest v
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
CG - Electrochemistry
OECD FORD branch
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Project
<a href="/en/project/GA13-31783S" target="_blank" >GA13-31783S: Study of interfacial charge transfer process on boron and phosphorus doped diamond in contact with electrolyte solution</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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