Multilayer graphene films as transparent electrodes for organic photovoltaic devices

Choi, Yoon-Young; Kang, Seong Jun; Kim, Han−Ki; Choi, Won Mook; Na, Seok‐In

doi:10.1016/j.solmat.2011.09.031

Cited by 124 publications

(51 citation statements)

References 27 publications

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“…This technique has a remarkable potential for instance when considering multilayer graphene sheets, whose thickness determination is necessary for applications in optics [17][18][19][20] and electronics. [21][22][23] Currently, several methods are used for estimating the multilayer graphene thickness. However, some limitations and/or drawbacks characterize these methods.…”

mentioning

confidence: 99%

Coherent absorption of light by graphene and other optically conducting surfaces in realistic on-substrate configurations

Zanotto¹,

Bianco²,

Mišeikis³

et al. 2016

APL Photonics

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Analytical formulas are derived describing the coherent absorption of light from a realistic multilayer structure composed by an optically conducting surface on a supporting substrate. The model predicts two fundamental results. First, the absorption regime named coherent perfect transparency theoretically can always be reached. Second, the optical conductance of the surface can be extrapolated from absorption experimental data even when the substrate thickness is unknown. The theoretical predictions are experimentally verified by analyzing a multilayer graphene structure grown on a silicon carbide substrate. The graphene thickness estimated through the coherent absorption technique resulted in good agreement with the values obtained by two other spectroscopic techniques. Thanks to the high spatial resolution that can be reached and high sensitivity to the probed structure thickness, coherent absorption spectroscopy represents an accurate and non-destructive diagnostic method for the spatial mapping of the optical properties of two-dimensional materials and of metasurfaces on a wafer scale.

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mentioning

confidence: 99%

Coherent absorption of light by graphene and other optically conducting surfaces in realistic on-substrate configurations

Zanotto¹,

Bianco²,

Mišeikis³

et al. 2016

APL Photonics

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show abstract

“…So the objective is to find highly conductive, flexible, transparent and cost-effective material. Various endeavors to replace ITO, especially in OSCs, have been published for instance, PEDOT:PSS [poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)] [69,70], carbon nanotubes (CNTs) [71,72], ultra thin metal layers [73], graphene [74].…”

Section: Ito-free Inkjet-printed Oscsmentioning

confidence: 99%

Organic Solar Cell by Inkjet Printing—An Overview

2017

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Abstract:In recent years, organic solar cells became more attractive due to their flexible power devices and the potential for low-cost manufacturing. Inkjet printing is a very potential manufacturing technique of organic solar cells because of its low material usage, flexibility, and large area formation. In this paper, we presented an overall review on the inkjet printing technology as well as advantages of inkjet-printing, comparison of inkjet printing with other printing technologies and its potential for organic solar cells (OSCs). Here we highlighted in more details about the viability of environment-friendly and cost-effective, non-halogenated indium tin oxide (ITO) free large scale roll to roll production of the OSC by inkjet printing technology. The challenges of inkjet printing like the viscosity limitations, nozzle clogging, coffee ring effect, and limitation of printability as well as dot spacing are also discussed. Lastly, some of the improvement strategies for getting the higher efficiency of the OSCs have been suggested.

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“…Choi et al manufactured a stacked multilayer CVD graphene device supported on a glass substrate with excellent transparency of over 80% throughout the visible spectrum and low sheet resistance. The multilayer collector electrode had a power conversion efficiency (PCE) of ∼1.2% (about 30% of that of ITO) in conjunction with the active organic film and conductive polymer [141]. Miao et al reported impressive 8.6% PCE for a solar cell based on a graphene monolayer/n-doped silicon Schottky junction, with the CVD graphene chemically doped with bis-(trifluoromethanesulfonyl)amide, drop-cast, and spin-coated from nitromethane solution.…”

Section: Modification and Doping Of Graphene For Applications In Elecmentioning

confidence: 99%

Electrochemistry of Graphene

Patten¹,

Velický²,

Dryfe³

2015

Advances in Electrochemical Sciences and Engineering

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Multilayer graphene films as transparent electrodes for organic photovoltaic devices

Cited by 124 publications

References 27 publications

Coherent absorption of light by graphene and other optically conducting surfaces in realistic on-substrate configurations

Coherent absorption of light by graphene and other optically conducting surfaces in realistic on-substrate configurations

Organic Solar Cell by Inkjet Printing—An Overview

Electrochemistry of Graphene

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