Journal Article

PUBDB-2024-04996

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Wafer-scale fabrication of mesoporous silicon functionalized with electrically conductive polymers

May, M.Extern*DESY* ; Boderius, M.Extern*DESY* ; Gostkowska-Lekner, N. ; Busch, M.Extern*DESY* ; Habicht, K. ; Hofmann, T. ; Huber, P. (Corresponding author)Extern*DESY*

2024
Elsevier Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.micromeso.2024.113181  doi:10.3204/PUBDB-2024-04996

Abstract: 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.

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Contributing Institute(s):

1. CIMMS-RA Center for integr. Multiscale M (CIMMS)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. DFG project 402553194 - Thermoelektrische Hybridmaterialien basierend auf porösem Silizium: der Zusammenhang zwischen makroskopischen Transportphänomenen und mikroskopischer Struktur und elementaren Anregungen (402553194) (402553194)
3. SFB 986 B06 - Multiphysikalische Modellierung und Simulation von Kompositwerkstoffen aus Metall und Polymer auf der Nanoskala (B06) (239714528) (239714528)
4. FS-Proposal: I-20210755 (I-20210755) (I-20210755)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2024

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Database coverage:
; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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