Novel biodegradable and ultra-flexible transparent conductive film for green light OLED devices

Wang, Tao; Wang, Yuzhou; Jing, Li-Chao; Zhu, Qingxia; Ethiraj, Anita Sagadevan; Geng, Wenming; Tian, Ying; Zhu, Zhenjun; Meng, Zhili; Wang, Tao

doi:10.1016/j.carbon.2020.10.027

Cited by 46 publications

(36 citation statements)

References 37 publications

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“…Interest in plastic electronics has been fuelled by the development of new synthetic methods for preparing conjugated organic materials, that enable organic electronics such as OLEDs, OPVDs, and OFETs [1][2][3]. Research in this field has further been motivated to bring the intrinsic properties of plastic electronics to fruition.…”

Section: Introductionmentioning

confidence: 99%

Combining Electrospinning and Electrode Printing for the Fabrication of Stretchable Organic Electrochemical Transistors

Lerond

Subramanian

Skene³

et al. 2021

Front. Phys.

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Stretchable conductors and organic electrochemical transistors (OECT) were fabricated from PEDOT:Tos (poly (3,4-ethylenedioxythiophene):iron tosylate) nanofibers. The devices were prepared by a combination of electrospinning and electrode printing followed by vapor phase polymerization (VPP). The impact of both the processing time and the composition of three electrospinning mixtures on the electrospun fiber mats was evaluated by scanning electron microscopy and cyclic voltammetry. Fibrillar mats prepared from the different mixtures maintained their electrical properties and could be stretched up to 140% of their original length. Stretchable OECTs were fabricated by printing silver drain and source electrodes directly on the conductive spun fibers. The fabricated devices showed transistor behavior up to ∼50% strain.

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Section: Introductionmentioning

confidence: 99%

Combining Electrospinning and Electrode Printing for the Fabrication of Stretchable Organic Electrochemical Transistors

Lerond

Subramanian

Skene³

et al. 2021

Front. Phys.

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“…Aman Anand, Md Moidul Islam, Rico Meitzner, Ulrich S. Schubert, and Harald Hoppe* DOI: 10.1002/aenm.202100875 such as solar cells (being used throughout the text as synonym for photovoltaic devices), [2,3] organic light-emitting diodes, [4,5] capacitive touch screens, [6][7][8][9] electrochromic devices, [10] transparent heaters, [11,12] bio-skins, [13,14] and others. In photovoltaics, TCEs are generally used as front electrode facing the sun, but in the case of semi-transparent devices, the back electrode could be a TCE too.…”

Section: Introduction Of a Novel Figure Of Merit For The Assessment Of Transparent Conductive Electrodes In Photovoltaics: Exact And Apprmentioning

confidence: 99%

Introduction of a Novel Figure of Merit for the Assessment of Transparent Conductive Electrodes in Photovoltaics: Exact and Approximate Form

Anand

Islam

Meitzner

et al. 2021

Advanced Energy Materials

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Transparent conductive electrodes (TCEs) are key components of photovoltaic devices. Being transparent, they allow light to enter the device, and being conductive, they allow the photocurrent generated to be drawn into the outer electric circuit. Ideally, TCEs exhibit maximum light transmission and conductivity at the same time. However, both properties have to be balanced. Depending on the photovoltaic material system, the selection of the most suitable TCE is crucial and is assessed by so‐called figures‐of‐merit (FOM). Here, a novel and exact FOM that explicitly considers the impact on photovoltaic performance is proposed. This novel FOM exhibits several useful attributes, among them: i) proportionality to the potential power output of the photovoltaic device, ii) normalization with regard to the theoretically ultimately attainable photovoltaic performance and, thus, it provides above all iii) meaningful guidance for the development of advanced TCEs. Based on the exact FOM, the transition sheet resistance is defined as the parameter, which separates the so‐far unidentified two regimes of TCE operation: transmittance versus conductance limited. An overview of realized state‐of‐the‐art semitransparent electrodes is reassessed and compared herein. Furthermore, the TCE requirements for various photovoltaic material systems are assessed in dependence on the spectral range of their operation.

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“…Graphene, a rapidly rising star for industry, which is arranged in a hexagonal lattice with sp 2 hybridized carbon atoms owning a peculiar two-dimensional crystal structure, is the thinnest membrane at present [1,2]. Due to the high optical transparency and electrical conductivity [3], transparent conductive films (TCFs) made by graphene have been used in different photovoltaic and optoelectronic devices, such as transparent flexible heaters [4], organic lighting devices [5], flexible touch screens [6], solar cells [7], and photosensors [8].…”

Section: Introductionmentioning

confidence: 99%

Low Surface Roughness Graphene Oxide Film Reduced with Aluminum Film Deposited by Magnetron Sputtering

et al. 2021

Self Cite

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Graphene film has wide applications in optoelectronic and photovoltaic devices. A novel and facile method was reported for the reduction of graphene oxide (GO) film by electron transfer and nascent hydrogen produced between aluminum (Al) film deposited by magnetron sputtering and hydrochloric acid (HCl) solution for only 5 min, significantly shorter than by other chemical reduction methods. The thickness of Al film was controlled utilizing a metal detection sensor. The effect of the thickness of Al film and the concentration of HCl solution during the reduction was explored. The optimal thickness of Al film was obtained by UV-Vis spectroscopy and electrical conductivity measurement of reduced GO film. Atomic force microscope images could show the continuous film clearly, which resulted from the overlap of GO flakes, the film had a relatively flat surface morphology, and the surface roughness reduced from 7.68 to 3.13 nm after the Al reduction. The film sheet resistance can be obviously reduced, and it reached 9.38 kΩ/sq with a high transmittance of 80% (at 550 nm). The mechanism of the GO film reduction by electron transfer and nascent hydrogen during the procedure was also proposed and analyzed.

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Novel biodegradable and ultra-flexible transparent conductive film for green light OLED devices

Cited by 46 publications

References 37 publications

Combining Electrospinning and Electrode Printing for the Fabrication of Stretchable Organic Electrochemical Transistors

Combining Electrospinning and Electrode Printing for the Fabrication of Stretchable Organic Electrochemical Transistors

Introduction of a Novel Figure of Merit for the Assessment of Transparent Conductive Electrodes in Photovoltaics: Exact and Approximate Form

Low Surface Roughness Graphene Oxide Film Reduced with Aluminum Film Deposited by Magnetron Sputtering

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