Electrical Conductivity Measurement of Transparent Conductive Films Based on Carbon Nanoparticles

Abstract

Transparent conductive films are fundamental materials, currently used in several fields. Recently, due to their unique multifunctional properties, composite materials have started to be used in place of fluorine tin oxide and indium tin oxide in transparent conductive electrodes. However, the production of composite materials is still complicated and involves toxic chemicals. Through a simple and environmentally-friendly method, we synthesized new composite materials—conductive, transparent, and flexible films—that can be applied to the production of modern optoelectronic devices. An even dispersion of the nanoparticles was achieved by ultrasound excitation. Moreover, a series of morphological and structural investigations were conducted on the films by scanning and transmission electron microscopy, electrical conductivity, Raman spectroscopy, X-ray diffraction and testing their sheet resistance. The results indicated that the tested composite materials were ideal for film coating. The nanofluids containing multi-walled carbon nanotubes presented the highest electrical conductivity; nevertheless, all the composite nanofluids tended to have relatively high electrical conductivities. The flexible films with composite structures presented lower sheet resistances than those with single structures. Finally, the hybrid materials showed a higher transmittance.

Radio-Frequency Conductivity Evaluation Method Based on Surface/Interface Scattering of Metallic Coatings

“…[1][2][3]. Among these applications, the objective of designing and applying conductive surface coatings is to meet the requirements of the material conductivity, thereby laying the foundation for achieving higher performance and more reliable technological products [4,5]. Therefore, the precise determination of the conductivity of surface conductive coatings is crucial for determining whether the related fields can achieve rapid and efficient technological iterations and developments.…”

Dispersion of Carbon Nanotubes Improved by Ball Milling to Prepare Functional Epoxy Nanocomposites

“…CNTs are one-dimensional (1D) tubes with exceptional mechanical properties and aspect ratios ranging from 30 to thousands. CNTs and CNT-based derivatives [24][25][26] have seen a significant increase in interest in recent years due to their high chemical stability, unique morphology, and electronic and mechanical properties. Adding CNTs or CNT derivatives to polymers at extremely low loading enhances their electrical, thermal, and mechanical properties [27].…”

Tailorable Electronic and Electric Properties of Graphene with Selective Decoration of Silver Nanoparticles by Laser-Assisted Photoreduction

“…The growth of metal nanoparticles on the graphene surface is also one of the effective doping methods to modulate the electronic state of graphene properly via charge carrier transfer across metal/graphene interfaces [ 21 ]. Among various metal nanoparticles, due to the extraordinary physical and chemical properties of silver nanoparticles (AgNPs), the 0D/2D heterostructures of AgNPs/graphene have been employed for demonstrating diverse synergetic applications such as electrocatalysts [ 22 , 23 , 24 ], electrochemical energy storages and sensors [ 25 ], photodetectors [ 26 ], transparent conductive coatings [ 27 , 28 ], etc., as well as for exploring fundamental phenomena such as localized surface plasmon resonance [ 21 , 26 , 29 ]. Moreover, integrating AgNPs with graphene structures may be structurally suitable for flexible device applications [ 30 , 31 , 32 ].…”