On the nature of plasmon-induced photocurrent enhancement in Bacteriochlorophyll c sensitized solar cells: Towards red light harvesting
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10421444" target="_blank" >RIV/00216208:11320/21:10421444 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=3FbUM1w8qa" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=3FbUM1w8qa</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.matchemphys.2020.123932" target="_blank" >10.1016/j.matchemphys.2020.123932</a>
Alternative languages
Result language
angličtina
Original language name
On the nature of plasmon-induced photocurrent enhancement in Bacteriochlorophyll c sensitized solar cells: Towards red light harvesting
Original language description
Bacteriochlorophyll c (BChl c) is a naturally occurring pigment which, as a monomer, exhibits strong absorption in the red region (600-700 nm), where the dyes used in the most efficient solar cells absorb only weakly. Herein, we investigate the plasmonic enhancement of photoconversion efficiencies in BChl c sensitized solar cells using gold nanoparticles of different morphologies. Using cyclic voltammetry, a favourable band offset (similar to 0.72 eV) between the lowest unoccupied molecular orbital of BChl c and the conduction band edge of titania photoanode was established. Further, gold nanorods with a localized surface plasmon resonance (SPR) frequency overlapping the absorption maxima of BChl c at similar to 670 nm were used, and compared with gold nanospheres with a SPR maximum in a region (similar to 525 nm) where BChl c has no absorption. Gold nanorod incorporated solar cells displayed the highest photoconversion efficiency with more than 30% increase in photocurrent, compared to devices containing nanospheres and only BChl c. The results are explained using boundary element method simulations, which show a significantly enhanced scattering cross-section and local electric field in the vicinity of gold nanorods compared to the nanospheres. Electrochemical impedance spectroscopy studies indicate reduced charge transport resistance in both gold nanorod and nanosphere incorporated devices.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GJ18-07977Y" target="_blank" >GJ18-07977Y: Study of individual nanoparticles properties with micro-spectroscopy combined with atomic force microscopy.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Chemistry and Physics
ISSN
0254-0584
e-ISSN
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Volume of the periodical
258
Issue of the periodical within the volume
Neuveden
Country of publishing house
CH - SWITZERLAND
Number of pages
10
Pages from-to
123932
UT code for WoS article
000595152900005
EID of the result in the Scopus database
2-s2.0-85093649285