Electromechanical characteristics of hybrid transparent conductive films based on graphene with a silver grid

Kim, Sung Man; Kang, Seong Jun

doi:10.3938/jkps.64.177

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…The relative R s (ΔR s /R s ) of the TETA-GR TCE/PET was also measured by repeated bending tests at d = 4 mm, as shown in Figure (d). The initial R s before bending is 205 ± 12 Ω/sq and reaches ∼1.22 times the original value after 1000 bending cycles, caused by the cracking of the TETA-GR on PET, as proved by SEM images (see Supporting Information, Figure S3), consistent with the previous reports. , These results suggest that R and R s are degraded by 30% and 22%, respectively, after the bending tests, and the degradation of R mainly originates from that of R s . In contrast, the optoelectronic devices using conventional ITO TCEs have shown much more degradation in their performance due to the cracking of the ITO TCEs by the repeated bending. − Therefore, the amine group-doped GR TCEs are very promising for their use in next-generation flexible optoelectronic devices.…”

Section: Resultssupporting

confidence: 90%

High-Performance n-i-p-Type Perovskite Photodetectors Employing Graphene-Transparent Conductive Electrodes N-Type Doped with Amine Group Molecules

Kim

Choi

2018

ACS Sustainable Chem. Eng.

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We first report high-performance n-i-p-type perovskite photodetectors (PDs) by employing n-type graphene (GR) transparent conductive electrodes (TCEs). The n-type GR is prepared by doping with ethylene diamine, diethylene triamine, and triethylene tetramine (TETA) containing two, three, and four amine groups, respectively. With increasing the number of amine groups (An) to four, the sheet resistance of the doped GR TCE is reduced to ∼205 Ω/sq with only an ∼1% decrease of the transmittance at 550 nm while the work function is gradually enhanced to ∼4.46 eV, meaning n-type doping. The PDs optimized at An = 4 exhibit 106 photocurrent/dark current ratio, 0.343 AW–1 responsivity (R), 5.82 × 109 cm Hz1/2-W-1 specific detectivity, 108 dB linear dynamic range, and 1.02 μs response time, comparable to the performances of the previously reported indium tin oxide-based perovskite PDs. In addition, flexible perovskite PDs with TFSA-doped GR TCEs show excellent bending stability, maintaining approximately 70% of the original R even after bending tests during 1000 cycles at a bending curvature of 4 mm.

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Section: Resultssupporting

confidence: 90%

High-Performance n-i-p-Type Perovskite Photodetectors Employing Graphene-Transparent Conductive Electrodes N-Type Doped with Amine Group Molecules

Kim

Choi

2018

ACS Sustainable Chem. Eng.

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“…In this paper, graphene was prepared by reduction and then compounded with CNTs. Graphene/metal 48 , 49 or graphene/metal oxide 47 composite films have also been widely studied. Graphene can be compounded with silver, copper and other metals, the latter usually appears in the form of nanowires, metal grids and so on, which also brings the problem of large surface roughness.…”

Section: Resultsmentioning

confidence: 99%

Bilayer and three dimensional conductive network composed by SnCl2 reduced rGO with CNTs and GO applied in transparent conductive films

Tian

Guo

Wang

et al. 2021

Sci Rep

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Graphene oxide (GO), reduced graphene oxide (rGO) and carbon nanotubes (CNTs) have their own advantages in electrical, optical, thermal and mechanical properties. An effective combination of these materials is ideal for preparing transparent conductive films to replace the traditional indium tin oxide films. At present, the preparation conditions of rGO are usually harsh and some of them have toxic effects. In this paper, an SnCl2/ethanol solution was selected as the reductant because it requires mild reaction conditions and no harmful products are produced. The whole process of rGO preparation was convenient, fast and environmentally friendly. Then, SEM, XPS, Raman, and XRD were used to verify the high reduction efficiency. CNTs were introduced to improve the film conductive property. The transmittance and sheet resistance were the criteria used to choose the reduction time and the content ratios of GO/CNT. Thanks to the post-treatment of nitric acid, not only the by-product (SnO2) and dispersant in the film are removed, but also the doping effect occurs, which are all conducive to reducing the sheet resistances of films. Ultimately, by combining rGO, GO and CNTs, transparent conductive films with a bilayer and three-dimensional structure were prepared, and they exhibited high transmittance and low sheet resistance (58.8 Ω/sq. at 83.45 T%, 47.5 Ω/sq. at 79.07 T%), with corresponding $${{\sigma_{dc} } \mathord{\left/ {\vphantom {{\sigma_{dc} } {\sigma_{opt} }}} \right. \kern-\nulldelimiterspace} {\sigma_{opt} }}$$ σ dc / σ opt values of 33.8 and 31.8, respectively. In addition, GO and rGO can modify the surface and reduce the film surface roughness. The transparent conductive films are expected to be used in photoelectric devices.

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A bibliometric analysis on the development trend of graphene-based transparent conductive electrodes (2009–2022)

Lee,

Mong

et al. 2024

Materials Today Sustainability

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Electromechanical characteristics of hybrid transparent conductive films based on graphene with a silver grid

Cited by 4 publications

References 15 publications

High-Performance n-i-p-Type Perovskite Photodetectors Employing Graphene-Transparent Conductive Electrodes N-Type Doped with Amine Group Molecules

High-Performance n-i-p-Type Perovskite Photodetectors Employing Graphene-Transparent Conductive Electrodes N-Type Doped with Amine Group Molecules

Bilayer and three dimensional conductive network composed by SnCl2 reduced rGO with CNTs and GO applied in transparent conductive films

A bibliometric analysis on the development trend of graphene-based transparent conductive electrodes (2009–2022)

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