Publication
Advanced Multifunctional Nanocomposite Lab
Selected Representative Publications
- 2023
- Giant thermal rectification efficiency by geometrically enhanced asymmetric non-linear radiation
- Seongkyun Kim , Taeyeop Kim , Jaehyun Sung , Yongjun Kim , Dongwoo Lee and Seunghyun Baik Materials Horizons
- Thermal rectification is an asymmetric heat transport phenomenon where thermal conductance changes depending on the temperature gradient direction. The experimentally reported efficiency of thermal rectification materials and devices, which are applicable for a wide range of temperatures, is relatively low. Here we report a giant thermal rectification efficiency of 218% by maximizing asymmetry in …
- 2022
- Invariable resistance of conductive nanocomposite over 30% strain
- C. MUHAMMED AJMAL, SEOKJAE CHA, WONJOON KIM, K. P. FASEELA, HEEJUN YANG, AND SEUNGHYUN BAIK Science Advances
- The dependence of the electrical resistance on materials’ geometry determines the performance of conductive nanocomposites. Here, we report the invariable resistance of a conductive nanocomposite over 30% strain. This is enabled by the in situ–generated hierarchically structured silver nanosatellite particles, realizing a short interparticle distance (4.37 nm) in a stretchable silicone rubber matr…
- 2023
- In Situ Regeneration of Oxidized Copper Flakes Forming Nanosatellite Particles for Non-Oxidized Highly Conductive Copper Nanocomposites
- K. P. Faseela, C. Muhammed Ajmal, Seokjae Cha, Seunghyun Baik Advanced Functional Materials
- Copper (Cu) is an attractive low-cost alternative to silver or gold. However, it is susceptible to oxidation in air. Here, facile in situ regeneration of oxidized Cu flakes (CuFLs) for the synthesis of highly conductive non-oxidized nanocomposites is reported. The oxidized CuFLs are regenerated into non-oxidized CuFLs and Cu nanosatellite (CuNS) particles by formic acid-aided in situ etching and r…
- 2023
- Covalently Functionalized Leakage-Free Healable Phase-Change Interface Materials with Extraordinary High-Thermal Conductivity and Low-Thermal Resistance
- Shabas Ahammed Abdul Jaleel, Taehun Kim, Seunghyun Baik Advanced Materials
- Phase-change materials (PCMs) have received considerable attention to take advantage of both pad-type and grease-type thermal interface materials (TIMs). However, the critical drawbacks of leaking, non-recyclability, and low thermal conductivity (κ) hinder industrial applications of PCM TIMs. Here, leakage-free healable PCM TIMs with extraordinarily high κ and low total thermal resistance (Rt) are…