Tuning Germanane Band Gaps via Cyanoethyl Functionalization for Cutting-Edge Photoactive Cathodes: Photoenhanced Hybrid Zinc-Ion Capacitor Evaluation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929958" target="_blank" >RIV/60461373:22310/24:43929958 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/full/10.1021/acsami.3c17420" target="_blank" >https://pubs.acs.org/doi/full/10.1021/acsami.3c17420</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsami.3c17420" target="_blank" >10.1021/acsami.3c17420</a>
Alternative languages
Result language
angličtina
Original language name
Tuning Germanane Band Gaps via Cyanoethyl Functionalization for Cutting-Edge Photoactive Cathodes: Photoenhanced Hybrid Zinc-Ion Capacitor Evaluation
Original language description
Energy harvesting and storing by dual-functional photoenhanced (photo-E) energy storage devices are being developed to battle the current energy hassles. In this research work, our investigations on the photoinduced efficiency of germanane (Ge-H) and its functionalized analogue cyanoethyl (Ge-C-2-CN) are assessed as photocathodes in photo-E hybrid zinc-ion capacitors (ZICs). The evaluated self-powered photodetector devices made by these germanene-based samples revealed effective performances in photogenerated electrons and holes. The photo-E ZICs findings provided a photoinduced capacitance enhancement of similar to 52% (for Ge-H) and similar to 26% (for Ge-C-2-CN) at a scan rate of 10 mV s(-1) under 100 mW cm(-2) illumination with 435 nm wavelength. Further characterizations demonstrated that the photo-E ZIC with Ge-C-2-CN supply higher specific capacitance (similar to 6000 mF g(-1)), energy density (similar to 550 mWh kg(-1)), and power density (similar to 31,000 mW kg(-1)), compared to the Ge-H. In addition, capacitance retention of photo-E ZIC with Ge-C-2-CN is similar to 91% after 3000 cycles which is almost 6% greater than Ge-H. Interestingly, the photocharging voltage response in photo-E ZIC made by Ge-C-2-CN is 1000 mV, while the photocharging voltage response with Ge-H is approximately 970 mV. The observed performances in Ge-H-based photoactive cathodes highlight the pivotal role of such two-dimensional materials to be applied as single architecture in new unconventional energy storage systems. They are particularly noteworthy when compared to the other advanced photo-E supercapacitors and could even be enhanced greatly with other suitable inorganic and organic functional precursors.
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
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
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)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Materials & Interfaces
ISSN
1944-8244
e-ISSN
1944-8252
Volume of the periodical
16
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
20
Pages from-to
14722-14741
UT code for WoS article
001187271700001
EID of the result in the Scopus database
2-s2.0-85188074292