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Modulation of the photoelectrochemical behavior of Au nanocluster–TiO 2 electrode by doping
Ist Teil von
Chemical science (Cambridge), 2020-06, Vol.11 (24), p.6248-6255
Erscheinungsjahr
2020
Quelle
EZB Free E-Journals
Beschreibungen/Notizen
Despite the successful debut of gold nanoclusters (Au NCs) in solar cell applications, Au NCs, compared to dyes and quantum dots, have several drawbacks, such as lower extinction coefficients. Any modulation of the physical properties of NCs can have a significant influence on the delicate control of absorbance, energy levels, and charge separation, which are essential to ensure high power conversion efficiency. To this end, we systematically alter the optoelectronic structure of Au
18
(SR)
14
by Ag doping and explain its influence on solar cell performance. Our in-depth spectroscopic and electrochemical characterization combined with computational study reveals that the performance-dictating factors respond in different manners to the Ag doping level, and we determine that the best compromise is the incorporation of a single Ag atom into an Au NC. This new insight highlights the unique aspect of NCs—susceptibility to atomic level doping—and helps establish a new design principle for efficient NC-based solar cells.
Sprache
Englisch
Identifikatoren
ISSN: 2041-6520
eISSN: 2041-6539
DOI: 10.1039/D0SC01220C
Titel-ID: cdi_crossref_primary_10_1039_D0SC01220C
Format
–
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