Strong adhesion and high optoelectronic performance hybrid graphene/carbon nanotubes transparent conductive films for green-light OLED devices

Wang, Tao; Jing, Li-Chao; Bao, Ze-Long; Qian, Peng-Fei; Geng, Wenming; Ethiraj, Anita Sagadevan; Geng, Wen-Hao; Chen, Lvyun; Zhu, Qingxia; Wang, Tao

doi:10.1016/j.surfin.2021.101137

Cited by 10 publications

(7 citation statements)

References 32 publications

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Section: Resultsmentioning

confidence: 92%

“…As has been noted above, due to the conjugation effect between the EA molecules and CNTs, EA molecules can adhere to the surface of the CNTs for non-covalent modification (in Figure 2e) 28 and provide more active sites for subsequent doping of AuNPs, which is acted by the phenolic hydroxyl functional group of EA molecules. 29 Figure 3a−f displays the SEM photographs of the pure CNT film and the modified CNT film. It is evident that the CNTs prior to modification crossed each other in a net-like distribution between the monotubes (in Figure 3a).…”

Section: Resultsmentioning

confidence: 99%

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p-Type Doping of Gold Nanoparticles on Ellagic Acid Noncovalently Modified Single-Walled Carbon Nanotubes Compositing with PEDOT:PSS Bilayer Films for Organic Light-Emitting Diodes

Geng²,

Wang

et al. 2022

ACS Appl. Nano Mater.

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Flexible transparent conductive films currently have been an extremely critical part of various optoelectronic devices. Herein, single-walled carbon nanotubes were non-covalently modified with ellagic acid to obtain modified carbon nanotubes (ECNTs), and p-type doping of gold nanoparticles was achieved on ECNT films utilizing the HAuCl4 solution (Au-ECNTs). Afterward, Au-ECNT/PEDOT:PSS bilayer films which possess excellent optoelectronic performance were fabricated through compositing with a highly conductive polymer poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) by means of spin-coating. The film displayed outstanding optoelectronic performance (R s = 42.5 Ω/sq@T = 79.8%), a rather smooth surface (roughness = 3.81 nm), superior mechanical strength (ΔR = 0.1 after 1000 times of bending cycle tests), and satisfactory adhesion (f T = 0.87). Finally, the film was employed as an anode to construct organic light-emitting diode devices with a maximum luminance of 2567 cd/m2 and a maximum current efficiency of 5.16 cd/A obtained at a 11 V voltage, which demonstrated that this type of film owns promising application prospects in the future photovoltaic device field.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

p-Type Doping of Gold Nanoparticles on Ellagic Acid Noncovalently Modified Single-Walled Carbon Nanotubes Compositing with PEDOT:PSS Bilayer Films for Organic Light-Emitting Diodes

Geng²,

Wang

et al. 2022

ACS Appl. Nano Mater.

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“…[91] Later, the combination of graphene (or reduced graphene oxide) and SWCNTs has been applied by several groups. [102,103,162] Zhu et al [106] revealed a method for producing a three-layer film based on SWCNTs modified by tannic acid, Ag nanowires, and PEDOT:PSS with extremely good optoelectrical properties: R 90 = 16 Ω sq −1 . Similar results were demonstrated by Rajanna et al in 2020 (R 90 = 17 Ω sq −1 ) for SWCNT-based TCFs, which were successfully implemented in amorphous Si solar cells.…”

Section: Rational Design Of Tcfs and Fundamental Limitmentioning

confidence: 99%

“…[ 91 ] Later, the combination of graphene (or reduced graphene oxide) and SWCNTs has been applied by several groups. [ 102,103,162 ] Zhu et al. [ 106 ] revealed a method for producing a three‐layer film based on SWCNTs modified by tannic acid, Ag nanowires, and PEDOT:PSS with extremely good optoelectrical properties: R 90 = 16 Ω sq −1 .…”

Section: Rational Design Of Tcfs and Fundamental Limitmentioning

confidence: 99%

Transparent Conducting Films Based on Carbon Nanotubes: Rational Design toward the Theoretical Limit

et al. 2022

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Electrically conductive thin-film materials possessing high transparency are essential components for many optoelectronic devices. The advancement in the transparent conductor applications requires a replacement of indium tin oxide (ITO), one of the key materials in electronics. ITO and other transparent conductive metal oxides have several drawbacks, including poor flexibility, high refractive index and haze, limited chemical stability, and depleted raw material supply. Single-walled carbon nanotubes (SWCNTs) are a promising alternative for transparent conducting films (TCFs) because of their unique and excellent chemical and physical properties. Here, the latest achievements in the optoelectronic performance of TCFs based on SWCNTs are analyzed.Various approaches to evaluate the performance of transparent electrodes are briefly reviewed. A roadmap for further research and development of the transparent conductors using "rational design," which breaks the deadlock for obtaining the TCFs with a performance close to the theoretical limit, is also described.

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“…[5,6,13] The successive and increasing significance of TCFs comes in accordance with the new trend of formation of green and eco-friendly TCFs and at the same time their disposable waste are biodegradable. [63][64][65][66] This has appeared on the ground due to the huge generation of global electronic waste (ewaste) that exceeded 53 million metric tonnes worldwide in 2019. [67] Such enormous and growing production rate of e-waste per annum rings the bell on how danger ewastes on the planet are.…”

Section: Fabrication Of Semi-tcfsmentioning

confidence: 99%

Multifunctional sustainable quercetin polyphenol/functionalized carbon nanotubes; semi‐transparent conductive films and 3D printing inks

Fares

Radaydeh

2022

Polymer Composites

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Semi‐transparent conductive films (semi‐TCFs) were fabricated from sustainable onion quercetin polyphenol and functionalized carbon nanotubes (F‐CNTs) in presence of different metal ion crosslinking agents via layer‐by‐layer technique. Layer‐by‐layer semi‐TCFs were fabricated in presence of metal ion crosslinking agents of Ca2+, Ti2+, Sn2+, and Fe3+ ions. Optical transmittance values was in the range of 41%–67%, sheet resistance in 17–1567 kΩ/sq, and σdc/σop in 0.0005–0.02 range, which confirm their semi‐TCFs characteristics. Optimum performance of single‐layer F‐CNTs semi‐TCFs was as follows; transmittance = 46.6%, sheet resistance = 6.5 kΩ/sq, and σdc/σop = 0.06. 3D printing inks and injectable hydrogels were also fabricated from multifunctional sustainable onion/F‐CNTs in presence gelatin. Proposed mechanism of gelation was established for the 3D printing ink, and the semi‐Interpenetrating network hydrogel was verified using spectroscopic ATR‐FTIR technique. The injectable hydrogel showed promising characteristics of robustness, elasticity, anti‐microbial activity, biocompatibility, and stretchable low cost multifunctional materials that adapt them to be successfully employed in biomedical and surgical applications. Characteristic peaks that demonstrate chemical structure of quercetin and successful functionalization of F‐CNTs were observed in 1H‐NMR and ATR‐FTIR spectra. High thermal stability of F‐CNTs was observed (694°C) in TGA and DTG thermograms, and two C(002) and C(100) crystal structures of F‐CNTs were result. Topologic nanostructure of F‐CNTs and spherical shape clusters of quercetin were demonstrated using optical and scanning electron microscope images.

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Strong adhesion and high optoelectronic performance hybrid graphene/carbon nanotubes transparent conductive films for green-light OLED devices

Cited by 10 publications

References 32 publications

p-Type Doping of Gold Nanoparticles on Ellagic Acid Noncovalently Modified Single-Walled Carbon Nanotubes Compositing with PEDOT:PSS Bilayer Films for Organic Light-Emitting Diodes

p-Type Doping of Gold Nanoparticles on Ellagic Acid Noncovalently Modified Single-Walled Carbon Nanotubes Compositing with PEDOT:PSS Bilayer Films for Organic Light-Emitting Diodes

Transparent Conducting Films Based on Carbon Nanotubes: Rational Design toward the Theoretical Limit

Multifunctional sustainable quercetin polyphenol/functionalized carbon nanotubes; semi‐transparent conductive films and 3D printing inks

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