A crack templated copper network film as a transparent conductive film and its application in organic light-emitting diode

Abstract

In this paper, a highly transparent, low sheet resistance copper network film fabricated by a crack template, which made by drying an acrylic based colloidal dispersion. The fabricated copper network film shows excellent optoelectronic performances with low sheet resistance of 13.4 Ω/sq and high optical transmittance of 93% [excluding Polyethylene terephthalate (PET) substrate] at 550 nm. What’s more, the surface root mean square of the copper network film is about 4 nm, and the figure of merit is about 380. It’s comparable to that of conventional indium tin oxide thin film. The repeated bending cycle test and adhesive test results confirm the reliability of the copper network film. As a transparent conductive film, the copper network film was used as an anode to prepare organic light-emitting diode (OLED). The experiment results show that the threshold voltage of the OLED is less than 5 V and the maximum luminance is 1587 cd/m2.

Efficient Standalone Flexible Small Molecule Organic Solar Cell Devices: Structure-Performance Relation Among Tetracyanoquinodimethane Derivatives

“…Mostly, all small molecule and polymer OSCs show an R q (for roughness) around 0.2–1 nm, but herein, R q ranges from ∼8 to 20 nm, which is relatively high. Such higher values are perceived in perovskite solar cells. , Though higher R q values also contribute to the cracked surface of films, nevertheless, in this study, R q values are attributed to the crystalline nature of films . Moreover, microscopic images manifest uniform, crack-free, and yet smoother film formation.…”

“…Such higher values are perceived in perovskite solar cells. 35,36 Though higher R q values also contribute to the cracked surface of films, 37 nevertheless, in this study, R q values are attributed to the crystalline nature of films. 33 Moreover, microscopic images manifest uniform, crack-free, and yet smoother film formation.…”

Flexible Embedded Metal Meshes by Sputter-Free Crack Lithography for Transparent Electrodes and Electromagnetic Interference Shielding

“…Despite these increases in sheet resistance, the impact on the EMI SE was not significantly pronounced (Figure 7b). After the bending tests, the average SE for samples 1 through 5 changed The following works in the literature are shown: Cu mesh(Liu), 67 Ag mesh (Cui), 68 graphene/Ni mesh, 32 Ti/Ag meshes, 73 Ag mesh (Han), 69 Ag mesh (Rao and Gupta), 76 Ag mesh (Xian), 71 Ag mesh (Gupta), 79 Ag mesh (Rao and Hunger), 80 Au mesh (Guo), 81 Ag mesh (Kang), 74 Au mesh (Muzzillo), 70 and Ag mesh (Voronin). from 42.5 to 41.4, from 42.0 to 39.5, from 37.4 to 35.6, from 39.7 to 37.6, and from 38.3 to 38.1 dB, respectively.…”

“…Transparent electrode performance of PET-embedded Ag meshes for our five samples compared to that of other crack lithography metal meshes in the literature. (a) Transmission at 550 nm versus sheet resistance and (b) σ DC /σ OP versus sheet resistance.The following works in the literature are shown: Cu mesh(Liu),67 Ag mesh (Cui),68 graphene/Ni mesh,32 Ti/Ag meshes,73 Ag mesh (Han),69 Ag mesh (Rao and Gupta),76 Ag mesh (Xian),71 Ag mesh (Gupta),79 Ag mesh (Rao and Hunger),80 Au mesh (Guo),81 Ag mesh (Kang),74 Au mesh (Muzzillo),70 and Ag mesh(Voronin) 58.…”

Flexible Transparent Conductive Films of Ag/Cr2O3 Core–Shell Nanowires as Electrodes for Electroluminescent Devices and Heaters

“…Flexible transparent conductive films (TCFs) have wide application prospects in solarcells, − wide-band antenna, − electrochromic devices, − electroluminescent devices, − wearable sensors, − flexible heaters, − light emitting diodes, − etc. Due to their excellent optical-electrical performances, mechanical flexibility, simple and diverse preparation methods, and the ability to be deposited on different substrates, silver nanowires (Ag NWs) have become a common research material for the preparation of TCFs and are an important part of the next generation of flexible optoelectronic devices.…”