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Wafer-scale fabrication of mesoporous silicon functionalized with electrically conductive polymers
Citation Link: https://doi.org/10.15480/882.13065
Publikationstyp
Journal Article
Date Issued
2024-08-01
Sprache
English
TORE-DOI
Volume
376
Article Number
113181
Citation
Microporous and Mesoporous Materials 376: 113181 (2024)
Publisher DOI
Scopus ID
Publisher
Elsevier
The fabrication of hybrid materials consisting of nanoporous hosts with conductive polymers is a challenging task, since the extreme spatial confinement often conflicts with the stringent physico-chemical requirements for polymerization of organic constituents. Here, several low-threshold and scalable synthesis routes for such hybrids are presented. First, the electrochemical synthesis of composites based on mesoporous silicon (pSi) and the polymers PANI, PPy and PEDOT is discussed and validated by scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). Polymer filling degrees of ≥74 % are achieved. Second, the production of PEDOT/pSi hybrids, based on the solid-state polymerization (SSP) of DBEDOT to PEDOT is shown. The resulting amorphous structure of the nanopore-embedded PEDOT is investigated via in-situ synchrotron-based X-ray scattering. In addition, a twofold increase in the electrical conductivity of the hybrid compared to the porous silicon host is shown, making this system particularly promising for thermoelectric applications.
Subjects
Conductive polymers PEDOT, PPy, PANI
Electrochemical synthesis
Mesoporous silicon
Organic-inorganic hybrid
Solid state polmerization
DDC Class
620.11: Engineering Materials
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Name
1-s2.0-S1387181124002038-main.pdf
Type
Main Article
Size
2.35 MB
Format
Adobe PDF