Modulating Conductivity, Environmental Stability of Transparent Conducting Nanotube Films on Flexible Substrates by Interfacial Engineering

Abstract

We have characterized the previously undescribed parameters for engineering the electrical properties of single-walled carbon nanotube (SWCNT) films for technological applications. First, the interfacial tension between bare SWCNT network films and a top coating passivation material was shown to dictate the variability of the films' sheet resistance (R(s)) after application of the top coating. Second, the electrical stability of the coated SWCNT films was affected by the mismatch between the CTE of the supporting substrate and the SWCNT network film. An upshift in the Raman G-band spectrum of SWCNTs on bare PET suggested that compressive strain was induced by the CTE mismatch after heating and cooling. These findings provide important guidelines for the choice of substrate and passivation coating materials that promote environmental stability in SWCNT-based transparent conductive films.

Electrically Robust Metal Nanowire Network Formation by In-Situ Interconnection with Single-Walled Carbon Nanotubes

“…One-dimensional (1D) nanomaterials, such as silver nanowires (AgNWs) or carbon nanotubes (CNTs), have been investigated as alternative electrode materials for fabricating transparent conducting films (TCFs) on plastic substrates instead of the brittle and expensive indium tin oxide12345678. The electrical conduction of these network films composed of 1D materials is typically dominated by the tube-tube or NW-NW junction resistance7910.…”

Nanocarbon/silver Nanowire Hybrid Flexible Transparent Conducting Film Technology

“…1차원구조인 단일벽 탄소나노튜브, 금속나노와이 어들은 우수한 전기전도도와 유연성으로 인해 기존 의 세라믹 투명전극을 대체하고 유연소자에 적합한 유연투명전극을 개발하고자 많은 연구가 진행되어 오고 있다 [1][2][3][4][5][6][7][8]. 특히, 은나노와이어는 최근에 지름 이 작아지고 양산화가 가능해지면서 학계뿐만 아니 라 기업체에서도 활발한 실용화 연구가 진행되고 있다.…”

Influence of a silane coupling agent on the optoelectrical properties of carbon nanotube/binder hybrid thin films

“…Transparent conducting films based on carbon nanotubes (CNTs) have received considerable attention in various fields, including the display technology, solar cell, flexible electronic device, automobile, and optical device fields [1][2][3][4][5][6][7][8][9][10]. CNT-based conductive-coating technologies have many potential applications in areas such as electrostatic dissipation, electromagnetic-interference shielding, and corrosion protection, as well as in the development of transparent film heaters and new electrode materials.…”