Multilayer Graphene with Chemical Modification as Transparent Conducting Electrodes in Organic Light-Emitting Diode

Xu, Yilin; Yu, Haojian; Cao, Jin; Chen, Yigang; Ma, Zhongquan; You, Ying; Wan, Jixiang; Fang, Xiaohong; Chen, Xiaoyuan

doi:10.1186/s11671-017-2009-9

Cited by 22 publications

(11 citation statements)

References 27 publications

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“…AuCl 3 has been also used as dopants for the modification of trilayer graphene films, which shows a decreased sheet resistance of 150 Ω sq −1 with transmittance above 91% in the visible region. Moreover, doping with AuCl 3 increases the performance of OLEDs based on the doped films because of the contribution of doping to the conductivity …”

Section: Graphene‐based Hybrid Materialsmentioning

confidence: 99%

Graphene‐Based Transparent Conductive Films: Material Systems, Preparation and Applications

2018

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The rising demands of optoelectronic devices, such as flexibility, stretchability, and energy efficiency, urgently require alternative transparent conductive films (TCFs) for indium tin oxide. Among all the candidates such as carbon nanomaterials, metal nanomaterials, conductive polymers, and other nanocomposites, graphene is highly promising because of its distinct properties, such as outstanding conductivity, impressive optical transparency, remarkable mechanical flexibility, and chemical/thermal stability. However, the practical application of graphene‐based TCFs (G‐TCFs) is still challenging due to the difficulty for preparing large‐area crystalline graphene with few defects for TCFs. Many efforts have been made to solve these problems, and several kinds of optoelectronic devices have been successfully fabricated with G‐TCFs. This review presents the recent development in this area made by the authors and others, including the material systems and synthetic strategies of G‐TCFs, as well as their applications as transparent electrodes in optoelectronic devices such as field effect transistors, organic light‐emitting diodes, organic solar cells, and other devices. The current major challenges in this area and the potential practical solutions are identified.

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Section: Graphene‐based Hybrid Materialsmentioning

confidence: 99%

Graphene‐Based Transparent Conductive Films: Material Systems, Preparation and Applications

2018

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“…There are several methods to increase the electrical conductivity of CVD graphene such as doping, combining with metal nanowires and creating complex multilayer graphene-based structures. 1,2 It was demonstrated that in the doped CVD graphene the sheet resistance could be lowered down to 100 =W. 2 At the same time, a reasonable sheet resistance is considered to be $ 50 =W.…”

Section: Introductionmentioning

confidence: 99%

Modification of Electric Transport Properties of CVD Graphene by Electrochemical Deposition of Cobalt Nanoparticles

et al. 2019

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Electrochemical deposition of cobalt nanoparticles was used to modify carrier transport properties of single-layered CVD graphene at the SiO2-on-Si substrate. The structure of graphene with cobalt nanoparticles was analyzed by Raman spectroscopy and scanning electron microscopy. The effect of the deposited cobalt nanoparticles on the sheet resistance of graphene was studied in the temperature range of 4–300[Formula: see text]K.

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“…Several deposition techniques, such as chemical vapor deposition (CVD) [15], ink-jet printing [16] or spin-coating [17], may be employed to grow the OLED devices, which have a basic structure consisting, from bottom to top, of transparent substrate and electrode, a hole injection layer, a polymer active layer and a cathode. In this paper, poly(3,4-ethylenedioxythiphene):poly (styrenesulfonate) (PEDOT:PSS) has been used as hole injection layer, and a hybrid organic-inorganic nanocomposite, composed by a blend of cadmium sulfide (CdS) nanoparticles in a matrix of poly( N -vinylcarbazole) (PVK), as active layer.…”

Section: Introductionmentioning

confidence: 99%

Expanded Electroluminescence in High Load CdS Nanocrystals PVK-Based LEDs

et al. 2019

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Immiscibility between dimethyl sulfoxide (DMSO) and polar solvents used for poly(N-vinylcarbazole) (PVK) solutions, leads to failed light-emitting diodes when colloidal cadmium sulfide (CdS) nanoparticles capped with thiophenol are incorporated to their active layer. To prevent this, a heat treatment is applied to the CdS nanoparticles in order to evaporate DMSO solvent. After evaporation most of the nanoparticles increased their size, and some of them show hexagonal crystalline structure instead of the original cubic zinc-blende observed in colloidal pre-treated nanoparticles. Nevertheless, enhanced electronic properties are measured in light-emitting devices when DMSO-free nanoparticles are embedded in the poly(N-vinylcarbazole) active layer. Light emission from these hybrid devices comprises the whole visible range of wavelengths as searched for white LEDs. Moreover, electroluminescence from both types of CdS nanoparticles (smaller cubic and bigger hexagonal) has been discriminated and interpreted through Gaussian deconvolution.

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Multilayer Graphene with Chemical Modification as Transparent Conducting Electrodes in Organic Light-Emitting Diode

Cited by 22 publications

References 27 publications

Graphene‐Based Transparent Conductive Films: Material Systems, Preparation and Applications

Graphene‐Based Transparent Conductive Films: Material Systems, Preparation and Applications

Modification of Electric Transport Properties of CVD Graphene by Electrochemical Deposition of Cobalt Nanoparticles

Expanded Electroluminescence in High Load CdS Nanocrystals PVK-Based LEDs

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