Reduced haze of transparent conductive films by smaller diameter silver nanowires > publication | 성균관대학교 AMNL 연구실

Publication

Advanced Multifunctional Nanocomposite Lab

Publication

Research Topic

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…

목록

Reduced haze of transparent conductive films by smaller diameter silver nanowires

Author: Mini Mol Menamparambath, Kihyuk Yang, Hyeong Hoon Kim, Oh Seung Bae, Mun Seok Jeong, Jae-Young Choi and Seunghyun Baik

Journal: Nanotechnology

Vol: 27

Page: 465706

Year: 2016

Link: https://iopscience.iop.org/article/10.1088/0957-4484/27/46/465706/meta 174회 연결

Silver nanowires (Ag NWs) have received considerable attention for flexible transparent conductive films (TCFs) since they provide a relatively low sheet resistance at a high transmittance. However, the diffuse light scattering, haze, has been regarded as a hurdle to achieve clarity of films. Here we revisit the Mie scattering theory to calculate the extinction and scattering coefficients of Ag NWs which were employed to estimate haze of TCFs. The theory predicted a decrease in haze with a decrease in Ag NW diameter which was supported by experimental investigations carried out using Ag NWs with 5 different diameters (17.6, 19.9, 22.5, 24.3, and 29.6 nm). Overall, excellent properties of TCFs (haze = 0.21%–1.8%, transmittance = 95.33%–98.45%, sheet resistance = 20.87–81.76 Ω sq−1) were obtained. Ag NWs with a diameter of 17.6 nm provided minimum haze values at equivalent sheet resistances (e.g., haze = 0.21%, transmittance = 98.45%, sheet resistance = 77.36 Ω sq−1) compared with ones with lager diameters and the controls in literatures. This work investigated the interdependence between haze and NW diameter and might provide a design guide for flexible Ag NW TCFs.