Enhancing the photovoltaic characteristics of organic solar cells by introducing highly conductive graphene as a conductive platform for a PEDOT:PSS anode interfacial layer

Hilal, Muhammad; Han, Jeong In

doi:10.1007/s10854-019-00921-0

Cited by 18 publications

(10 citation statements)

References 46 publications

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“…GO, a two-dimensional carbon material, has also been investigated to modified PEDOT:PSS as hole-transport materials in different OSCs. The Oleyamine-functionalized GO/PEDOT:PSS layer on PBDB-T:ITIC [ 317 ], PEDOT:PSS treated with GO layers on PTB7:PC 71 BM devices [ 318 ], on P3HT:PC 60 BM devices [ 319 ], on P3HT:PCBM devices [ 320 ], on inverted P3HT:PCBM OSCs [ 321 ], on inverted P3HT:PC 71 BM OSCs [ 322 ], and on reduced GO-germanium QDs modified PEDOT:PSS on P3HT:PCBM [ 323 ]. Raj et al reported the fabrication of PTB7:PC 70 BM-based OSCs with PEDOT:PSS:GO, resulting in enhanced PCE of 7.68% [ 324 ].…”

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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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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“…For this purpose, CIL and AIL are inserted between BHJ and electrodes, which facilitate efficient electrons and holes extraction at cathode and anode, respectively. [44][45][46][47] In OSCs, the CIL is an important constituent and plays a vital role to improve the efficiency and stability of devices. First, it not only helps in tuning the energy level alignment at the electrode/BHJ interface but also beneficial for selective contact formation for a single type of charge carrier.…”

Section: Introductionmentioning

confidence: 99%

“…For better ohmic contacts, one common approach is to introduce a charge‐transporting interfacial layer between the electrode and BHJ layer to facilitate charge extraction. For this purpose, CIL and AIL are inserted between BHJ and electrodes, which facilitate efficient electrons and holes extraction at cathode and anode, respectively 44–47 …”

Section: Introductionmentioning

confidence: 99%

Recent progress in cathode interlayer materials for non‐fullerene organic solar cells

Ahmad

Zhou

Fan

et al. 2021

EcoMat

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Non‐fullerene acceptors are currently a hot research area in the development of organic solar cells (OSCs). At present, the‐state‐of‐the‐art power conversion efficiency (PCE) of non‐fullerene organic solar cells (NF‐OSCs) with single and multiple‐junction has surpassed 18% and 19%, respectively. The cathode interlayer (CIL) plays a significant role in the improvement of PCE and the stability of OSCs. Recently, a large number of CIL materials have been employed in OSCs. This review summarizes the recent progress of CIL materials and systematically describes their impact on the device efficiency and stability in single‐junction NF‐OSCs. Firstly, the functions, key requirements, and distinctive features of CILs when used in NF‐OSCs are summarized. Afterward, some big families of materials including metal oxides, metal salts/complexes, small molecules, polymers, composites/hybrids are presented as CIL for NF‐OSCs. Finally, the scale‐up techniques, conclusion, and future challenges regarding CIL in NF‐OSCs are elucidated.

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“…et al, 2018 ). Several HTL materials, including the p-type semiconducting polymer PEDOT:PSS; inorganic metal oxides, e.g., nickel oxide (NiO), MoO 3 , and vanadium pentoxide (V 2 O 5 ); and carbon-based materials, e.g., CNTs and graphene, have been recently employed in OSCs ( Mbuyise et al, 2017 ; Singh et al, 2017 ; Hilal and Han, 2019 ; Mohammad et al, 2019 ; Rafique et al, 2019 ; Li J. et al, 2020 ). Among these, PEDOT:PSS is the most commonly used HTL due to its high optical transmittance in the visible region, which permits more light to pass to the active layer for effective exciton generation, and its suitable work function, which aligns the energy levels between the active layer and anode for efficient hole extraction ( Dang et al, 2018 ; Zhang W. et al, 2020 ).…”

Section: Charge Transport Layermentioning

confidence: 99%

Recent Applications of Carbon Nanotubes in Organic Solar Cells

et al. 2022

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In recent years, carbon-based materials, particularly carbon nanotubes (CNTs), have gained intensive research attention in the fabrication of organic solar cells (OSCs) due to their outstanding physicochemical properties, low-cost, environmental friendliness and the natural abundance of carbon. In this regard, the low sheet resistance and high optical transmittance of CNTs enables their application as alternative anodes to the widely used indium tin oxide (ITO), which is toxic, expensive and scarce. Also, the synergy between the large specific surface area and high electrical conductivity of CNTs provides both large donor-acceptor interfaces and conductive interpenetrating networks for exciton dissociation and charge carrier transport. Furthermore, the facile tunability of the energy levels of CNTs provides proper energy level alignment between the active layer and electrodes for effective extraction and transportation of charge carriers. In addition, the hydrophobic nature and high thermal conductivity of CNTs enables them to form protective layers that improve the moisture and thermal stability of OSCs, thereby prolonging the devices’ lifetime. Recently, the introduction of CNTs into OSCs produced a substantial increase in efficiency from ∼0.68 to above 14.00%. Thus, further optimization of the optoelectronic properties of CNTs can conceivably help OSCs to compete with silicon solar cells that have been commercialized. Therefore, this study presents the recent breakthroughs in efficiency and stability of OSCs, achieved mainly over 2018–2021 by incorporating CNTs into electrodes, active layers and charge transport layers. The challenges, advantages and recommendations for the fabrication of low-cost, highly efficient and sustainable next-generation OSCs are also discussed, to open up avenues for commercialization.

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Enhancing the photovoltaic characteristics of organic solar cells by introducing highly conductive graphene as a conductive platform for a PEDOT:PSS anode interfacial layer

Cited by 18 publications

References 46 publications

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

Recent progress in cathode interlayer materials for non‐fullerene organic solar cells

Recent Applications of Carbon Nanotubes in Organic Solar Cells

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