Functionalization of boron-doped diamond with a push–pull chromophore via Sonogashira and CuAAC chemistry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F18%3A00494133" target="_blank" >RIV/61388955:_____/18:00494133 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/18:00494133 RIV/68407700:21230/18:00324605

Result on the web

<a href="http://dx.doi.org/10.1039/C8RA07545J" target="_blank" >http://dx.doi.org/10.1039/C8RA07545J</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/C8RA07545J" target="_blank" >10.1039/C8RA07545J</a>

Result language

angličtina

Original language name

Functionalization of boron-doped diamond with a push–pull chromophore via Sonogashira and CuAAC chemistry

Original language description

Improving the performance of p-type photoelectrodes represents a key challenge toward significant advancement in the field of tandem dye-sensitized solar cells. Herein, we demonstrate the application of boron-doped nanocrystalline diamond (B:NCD) thin films, covalently functionalized with a dithienopyrrole–benzothiadiazole push–pull chromophore, as alternative photocathodes. First, a primary functional handle is introduced on H-terminated diamond via electrochemical diazonium grafting. Afterwards, Sonogashira cross-coupling and Cu(I) catalyzed azide–alkyne cycloaddition (CuAAC) reactions are employed to attach the chromophore, enabling the comparison of the degree of surface functionalization and the importance of the employed linker at the diamond-dye interface. X-ray photoelectron spectroscopy shows that surface functionalization via CuAAC results in a slightly higher chromophore coverage compared to the Sonogashira cross-coupling. However, photocurrents and photovoltages, obtained by photoelectrochemical and Kelvin probe measurements, are approximately three times larger on photocathodes functionalized via Sonogashira cross-coupling. Surface functionalization via Sonogashira cross-coupling is thus considered the preferential method for the development of diamond-based hybrid photovoltaics.n

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

RSC Advances

ISSN

2046-2069

e-ISSN

—

Volume of the periodical

8

Issue of the periodical within the volume

58

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

33276-33290

UT code for WoS article

000448422800033

EID of the result in the Scopus database

2-s2.0-85054815680