Covalent Graphene-Metal–Organic Polyhedra Hybrids: Triboelectric Nanogenerators for Next Generation of Wearable E-Skin Technologies
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F25%3A73630833" target="_blank" >RIV/61989592:15640/25:73630833 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/25:10257715
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/smll.202503772" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/smll.202503772</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/smll.202503772" target="_blank" >10.1002/smll.202503772</a>
Alternative languages
Result language
angličtina
Original language name
Covalent Graphene-Metal–Organic Polyhedra Hybrids: Triboelectric Nanogenerators for Next Generation of Wearable E-Skin Technologies
Original language description
The development of stretchable energy-harvesting devices that convert mechanical stimuli into electrical energy is crucial for advancing self-powered electronic skin (e-skin) technologies. Triboelectric nanogenerators (TENGs) show promise but suffer from low stretchability, limited conductivity, and poor mechanical durability. Here, we report a new generation of TENGs designed via the molecular chemistry of metal-organic polyhedra (MOPs) covalently bonded to functionalized 2D nitrogen-doped graphene sheets (NG@MOP). The resulting NG@MOP hybrids, featuring aromatic regions and surface amine groups, link to anionic nickel-based MOPs, [Ni8(HImDC)12]8-, through amide bonds. This hybrid exhibits a large surface area, hierarchical micro-mesoporous channels, and structural defects, improving mechanical resilience. Incorporating NG@MOP into a polyurethane matrix produces a highly stretchable, biocompatible film withstanding over 500% strain. The composite delivers excellent triboelectric output, generating 417 V and 10.8 mu A at 5 wt % loading. Applied as a wearable e-skin, the device maintains functionality under extreme deformation, demonstrating a strain sensitivity of 13 mV per degree of motion. It efficiently detects subtle body motions such as bending and stretching, showing strong potential for wearable motion sensing and real-time health monitoring.
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
21001 - Nano-materials (production and properties)
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
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Small
ISSN
1613-6810
e-ISSN
1613-6829
Volume of the periodical
21
Issue of the periodical within the volume
26
Country of publishing house
DE - GERMANY
Number of pages
13
Pages from-to
nestránkováno
UT code for WoS article
001478778000001
EID of the result in the Scopus database
2-s2.0-105004185606