Efficiency Enhancement of Organic/GaAs Hybrid Photovoltaic Cells Using Transparent Graphene as Front Electrode

Huang, Chi-Hsien; Yu, S. C.; Lai, Yi-Chun; Chi, Gou–Chung; Yu, Peichen

doi:10.1109/jphotov.2015.2501718

Cited by 11 publications

(9 citation statements)

References 31 publications

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“…The KG preparation began with the growth of large-area single-layer graphene films on the copper foil (G/Cu foil) by CVD in a tubular quartz furnace. Details of graphene growth were described elsewhere . Afterward, thermal release tape (TRT) was used to adhere to graphene/Cu foil and then immersed in a Fe(NO 3 ) 3 ·9H 2 O solution to etch away the Cu foil.…”

Section: Methodsmentioning

confidence: 99%

“…PV characteristics of the hybrid PV cells were measured using a solar simulator under AM 1.5G (Air Mass 1.5, Globe) at an illumination intensity of 100 mW/cm 2 calibrated by a PV measurement (PVM-154) monocrystalline Si solar cell and a Keithley 2400 source meter. The PV cells under measurement were shielded using a black stainless metal mask with an opening area of 1 cm 2 , and the temperature was controlled at 25 ± 0.5 °C …”

Section: Methodsmentioning

confidence: 99%

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Surface Micro-/Nanotextured Hybrid PEDOT:PSS-Silicon Photovoltaic Cells Employing Kirigami Graphene

Huang

Chen²,

Chiu³

et al. 2019

ACS Appl. Mater. Interfaces

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Kirigami graphene allows a two-dimensional material to transform into a three-dimensional structure, which constitutes an effective transparent electrode candidate for photovoltaic (PV) cells having a surface texture. The surface texture of an inverted pyramid was fabricated on a Si substrate using photolithography and wet etching, followed by metal-assisted chemical etching to obtain silicon nanowires on the surface of the inverted pyramid. Kirigami graphene with a cross-pattern array was prepared using photolithography and plasma etching on a copper foil. Then, kirigami graphene was transferred onto hybrid heterojunction PV cells with a poly(ethylene terephthalate)/silicone film. These cells consisted of poly(3,4-ethylenedioxythiophene)–poly(styrenesulfonate) (PEDOT:PSS) as the p-type semiconductor, Si(100) as the inorganic n-type semiconductor, and a silver comb electrode on top of PEDOT:PSS. The conductivity of PEDOT:PSS was greatly improved. This improvement was significantly higher than that achieved by the continuous graphene sheet without a pattern. Transmission electron microscopy and Raman spectroscopy results revealed that the greater improvement with kirigami graphene was due to the larger contact area between PEDOT:PSS and graphene. By using two-layer graphene having a kirigami pattern, the power conversion efficiency, under simulated AM1.5G illumination conditions, was significantly augmented by up to 9.8% (from 10.03 to 11.01%).

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Surface Micro-/Nanotextured Hybrid PEDOT:PSS-Silicon Photovoltaic Cells Employing Kirigami Graphene

Huang

Chen²,

Chiu³

et al. 2019

ACS Appl. Mater. Interfaces

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“…Chemical method requires extra chemicals and dispersants to avoid agglomeration and precipitation, raising concerns of undesired derivatives and environmental hazards caused by improper handling. 3,4 Graphene and nanosilver share some common properties and are suitable for applications such as transparent conductive electrodes, 5 surface enhancements for Raman spectroscopy, 6 and antimicrobial materials. 7 Traditional preparation requires chemicals such as diethylene and sodium borohydride.…”

Section: Introductionmentioning

confidence: 99%

Comparison of graphene impregnated with/without nanosilver prepared by submerged arc discharge method

Tseng

Chou

Shih

et al. 2018

Nanomaterials and Nanotechnology

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In this study, submerged arc discharge method (SADM) was used to prepare graphene-nanosilver composites (graphene impregnated with nanosilver) and verified whether it can be prepared under different methods. The optical properties, zeta potentials, and particle sizes of the composites were analyzed through ultraviolet-visible spectroscopy and Zetasizer. The suspensibility of composites were much better than that of noncomposites. Then, we compared the components of composites and noncomposites through transmission electron microscopy. The results confirmed that even when fabricated from similar materials, the composites and noncomposites yielded by SADM featured significantly different properties.

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“…As a result of its excellent optical transparency, flexibility and electrical conductivity, graphene has attracted research attention related to the development of transparent electrodes on flexible substrates. Such devices can be employed in various applications, including solar cells, touch panels, organic light emitting diodes, and wearable electronics [ 3 , 4 , 5 , 6 ]. Many graphene preparation methods have been developed, including micromechanical exfoliation of highly oriented pyrolytic graphite [ 7 ], sublimation of silicon from silicon carbide [ 8 ], and chemical vapor deposition from a carbon-containing gas [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Flexible Transparent Electrode of Hybrid Ag-Nanowire/Reduced-Graphene-Oxide Thin Film on PET Substrate Prepared Using H2/Ar Low-Damage Plasma

Huang

Yin-yin

et al. 2017

Polymers

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Abstract:We employ H 2 /Ar low-damage plasma treatment (H 2 /Ar-LDPT) to reduce graphene oxide (GO) coating on a polymer substrate-polyethylene terephthalate (PET)-with the assistance of atomic hydrogen (H α ) at low temperature of 70 • C. Four-point probing and ultraviolet-visible (UV-Vis) spectroscopy demonstrate that the conductivity and transmittance can be controlled by varying the H 2 /Ar flow rate, treatment time, and radio-frequency (RF) power. Optical emission spectroscopy reveals that the H α intensity depends on these processing parameters, which influence the removal of oxidative functional groups (confirmed via X-ray photoelectron spectroscopy) to yield reduced GO (rGO). To further improve the conductivity while maintaining high transmittance, we introduce silver nanowires (AgNWs) between rGO and a PET substrate to obtain a hybrid rGO/AgNWs/PET with a sheet resistance of~100 Ω/sq and 81% transmittance. In addition, the hybrid rGO/AgNWs thin film also shows high flexibility and durability and is suitable for flexible and wearable electronics applications.

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Efficiency Enhancement of Organic/GaAs Hybrid Photovoltaic Cells Using Transparent Graphene as Front Electrode

Cited by 11 publications

References 31 publications

Surface Micro-/Nanotextured Hybrid PEDOT:PSS-Silicon Photovoltaic Cells Employing Kirigami Graphene

Surface Micro-/Nanotextured Hybrid PEDOT:PSS-Silicon Photovoltaic Cells Employing Kirigami Graphene

Comparison of graphene impregnated with/without nanosilver prepared by submerged arc discharge method

Flexible Transparent Electrode of Hybrid Ag-Nanowire/Reduced-Graphene-Oxide Thin Film on PET Substrate Prepared Using H2/Ar Low-Damage Plasma

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