Bulk Heterojunction Organic Solar Cells with Graphene Oxide Hole Transport Layer: Effect of Varied Concentration on Photovoltaic Performance

Rafique, Shazia; Abdullah, Shahino Mah; Alhummiany, Haya; Abdel-wahab, M. Sh.; Iqbal, Javed; Sulaiman, Khaulah

doi:10.1021/acs.jpcc.6b10545

Cited by 20 publications

(10 citation statements)

References 38 publications

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“…Yeo et al introduced a versatile rGO with sulfonic acid groups modified on its edge and basal planes, resulting in a PCE of 3.64% for P3HT‐based solar cells . Rafique et al prepared GO by various concentrations and deposited at a fixed spinning speed, and they got an optimized PCE of 2.73%. In 2016, Huang et al prepared rGO/PEDOT:PSS as HTL to fabricate efficient perovskite hybrid solar cells and they got an average PCE of 10.5%.…”

Section: Resultsmentioning

confidence: 99%

PEDOT:PSS Modification by blending graphene oxide to improve the efficiency of organic solar cells

Wang

et al. 2017

Polymer Composites

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In this work, we present a simple method to modify poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) by directly blending graphene oxide (GO) into PEDOT:PSS to form (PEDOT:PSS):GO nanocomposite and it shows an enhanced conductivity than that of pristine PEDOT:PSS due to the benzoid‐quinoid structure transition of PEDOT:PSS. By applying the obtained nanocomposite (PEDOT:PSS):GO film as the hole‐transporting layer (HTL) in organic solar cells (OSCs) ITO/HTL/active‐layer/Ca/Al, in which the active layer consists of poly(3‐hexylthiophene‐2,5‐diyl) (P3HT):[6,6]‐phenyl C61 butyric acid methyl ester (PC61BM) or P3HT:indene‐C60 bisadduct (ICBA), we found that the power conversion efficiency of these two OSCs with P3HT:PC61BM and P3HT:ICBA as the active layer reached to 3.96% and 5.89%, respectively, showing correspondingly enhancement of 14.78% and 9.89% as compared with those of the control devices in which PEDOT:PSS without any modification. Therefore, PEDOT:PSS modified with GO provides an easy way to fabricate stable OSCs with high performance and low cost. POLYM. COMPOS., 39:3066–3072, 2018. © 2017 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 99%

PEDOT:PSS Modification by blending graphene oxide to improve the efficiency of organic solar cells

Wang

et al. 2017

Polymer Composites

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“…Thus, it is crucial to control the concentration and thickness of GO for suitable performance as HTLs. Rafique et al tested the thickness and concentrations of spin-coated GO, selecting 1 mg/mL to form thin conductive films in BHJ OSCs with a PCE of 2.73% [ 221 ]. The reduction process is another feasible way to increase the conductivity of GO layers.…”

Section: Hole-transporting Materials As Htls In Oscsmentioning

confidence: 99%

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

et al. 2022

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Global energy demand is increasing; thus, emerging renewable energy sources, such as organic solar cells (OSCs), are fundamental to mitigate the negative effects of fuel consumption. Within OSC’s advancements, the development of efficient and stable interface materials is essential to achieve high performance, long-term stability, low costs, and broader applicability. Inorganic and nanocarbon-based materials show a suitable work function, tunable optical/electronic properties, stability to the presence of moisture, and facile solution processing, while organic conducting polymers and small molecules have some advantages such as fast and low-cost production, solution process, low energy payback time, light weight, and less adverse environmental impact, making them attractive as hole transporting layers (HTLs) for OSCs. This review looked at the recent progress in metal oxides, metal sulfides, nanocarbon materials, conducting polymers, and small organic molecules as HTLs in OSCs over the past five years. The endeavors in research and technology have optimized the preparation and deposition methods of HTLs. Strategies of doping, composite/hybrid formation, and modifications have also tuned the optical/electrical properties of these materials as HTLs to obtain efficient and stable OSCs. We highlighted the impact of structure, composition, and processing conditions of inorganic and organic materials as HTLs in conventional and inverted OSCs.

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“…Moreover, a low series resistance (6.89 Ω cm −2 ) was obtained for a GO HTL of 1 mg mL −1 due to the better homogeneous morphology as compared with concentrations of 2 and 4 mg mL −1 , showing resistance values of 9.54 and 11.51 Ω cm −2 , respectively. Therefore, with the lowest concentration (1 mg mL −1 ) having a thickness of 1–3 nm, the device performance reached 2.73% as compared with concentrations of 2 mg mL −1 (efficiency is 0.67%) and 4 mg mL −1 (efficiency is 0.22%) . GO (reduced graphene oxide, rGO) with oxygen‐containing functional groups is endowed with excellent solubility in water or polar organic solvents, therefore becoming a promising solution‐processable interfacial material for the charge‐transport layer at a large scale .…”

Section: Graphene‐based Solar Cellsmentioning

confidence: 99%

The Role of Graphene and Other 2D Materials in Solar Photovoltaics

et al. 2018

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2D materials have attracted considerable attention due to their exciting optical and electronic properties, and demonstrate immense potential for next-generation solar cells and other optoelectronic devices. With the scaling trends in photovoltaics moving toward thinner active materials, the atomically thin bodies and high flexibility of 2D materials make them the obvious choice for integration with future-generation photovoltaic technology. Not only can graphene, with its high transparency and conductivity, be used as the electrodes in solar cells, but also its ambipolar electrical transport enables it to serve as both the anode and the cathode. 2D materials beyond graphene, such as transition-metal dichalcogenides, are direct-bandgap semiconductors at the monolayer level, and they can be used as the active layer in ultrathin flexible solar cells. However, since no 2D material has been featured in the roadmap of standard photovoltaic technologies, a proper synergy is still lacking between the recently growing 2D community and the conventional solar community. A comprehensive review on the current state-of-the-art of 2D-materials-based solar photovoltaics is presented here so that the recent advances of 2D materials for solar cells can be employed for formulating the future roadmap of various photovoltaic technologies.

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Bulk Heterojunction Organic Solar Cells with Graphene Oxide Hole Transport Layer: Effect of Varied Concentration on Photovoltaic Performance

Cited by 20 publications

References 38 publications

PEDOT:PSS Modification by blending graphene oxide to improve the efficiency of organic solar cells

PEDOT:PSS Modification by blending graphene oxide to improve the efficiency of organic solar cells

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

The Role of Graphene and Other 2D Materials in Solar Photovoltaics

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