Tailoring Highly Thermal Conductive Properties of Te/MoS₂/Ag Heterostructure Nanocomposites Using a Bottom‐Up Approach

Abstract

Ever‐increasing packaging and power densities of modern electronic devices in the present “More‐than‐Moore” technology era demand higher performance thermal interface materials (TIMs). However, conventional composite TIMs require higher loading to achieve better thermal conductive property, resulting in a mechanical problem. The poor wetting property of matrix loading materials further increases the interfacial thermal resistance (ITR). In this work, a one‐step hydrothermal method is employed to grow 2D molybdenum disulfide (MoS2) nanosheets on a tellurium (Te) nanowire skeleton and silver (Ag) nanoparticles are further decorated on MoS2 nanosheets via the photoreduction method. The in‐plane thermal conductivity of the final nanocomposite reaches as high as 10.4 W m−1 K−1, which is 4,160% higher than that of a pure epoxy resin and one order of magnitude higher than that of conventional polymeric nanocomposites. The 3D interconnected heat transferring network of Te/MoS2/Ag greatly enhances the thermal stability of the composite in practical applications. The rational materials design concept may contribute to the development of new types of high‐performance thermal management materials.

Ice-Templated MXene/Ag–Epoxy Nanocomposites as High-Performance Thermal Management Materials

“…The ITR between the loading materials and epoxy resin matrix in MXene−epoxy and MXene/Ag−epoxy nanocomposites was calculated using the obtained thermal conductivity values (k) according to the Monte Carlo model proposed by Foygel, 40 This model assumes a random distribution of fillers and percolating networks in the matrix. 41 The geometry of the junction formed between MXene nanosheets is emphasized to analyze the nanoscale interfacial thermal physics across two MXene species bridged by Ag NPs. The thermal conductivity of an epoxy nanocomposite as a function of V f can be described as follows: 42…”

Hierarchical PANI/ZnO nanocomposite: synthesis and synergistic effect of shape-selective ZnO nanoflowers and polyaniline sensitization for efficient photocatalytic dye degradation and photoelectrochemical water splitting

“…The morphological analysis of the as-prepared samples and as-deposited films over the FTO substrate was performed by using scanning electron microscope (Carl Zeiss EVO-50 series) operated at 15 kV. The detailed morphological information of the samples was acquired by transmission electron microscope (FEI Tecnai TF20) operated at 200 kV [59]. The surface elemental composition and mapping of the prepared samples were investigated by energy dispersive X-ray spectrophotometer (SWIFT ED-3000) operated at 15 kV.…”

Hydrothermal synthesis of two-dimensional MoS2 and its applications

“…Among these methods, the hydrothermal synthesis Tungsten www.springer.com/42864 technology is an effective way to grow 2D TMD nanostructures, especially for MoS 2 , with different morphologies and rich edge states exposed to environments with higher chemical activities [31,32], which is essential in applications such as the hydrodesulfurization [33], lithium ion battery (LIB) [34,35] and hydrogen evolution reaction [36,37]. Another advantage is that it is easy to form functional nanocomposites with other nanomaterials such as graphene, TiO 2 , carbon nanotubes (CNTs) and tellurium (Te) [38][39][40][41], according to different demands. In addition, the 2D TMDs prepared by the hydrothermal method are polycrystalline.…”