A versatile solution-processed MoO3/Au nanoparticles/MoO3 hole contact for high performing PEDOT:PSS-free organic solar cells

Zhang, Weidong; Lan, Weixia; Lee, Min Hsuan; Singh, Jai; Zhu, Furong

doi:10.1016/j.orgel.2017.10.005

Cited by 21 publications

(8 citation statements)

References 37 publications

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“…Indeed, it can form a MoO 3 /AgNPs/MoO 3 structure as HTL to improve the J sc and reduce the recombination by the backscattering and surface plasmon effects of AgNPs [ 121 ]. Zhang et al prepared a solution-processed MoO 3 /AgNPs/MoO 3 (MAM) HTL in PTB7:PC70BM cells [ 122 ]. The MAM multilayer enabled an enhanced charge collection by suppressing charge recombination.…”

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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“…In a related work, we have demonstrated that incorporation of gold NPs in the hole transporting layer (HTL) helps to improve the adhesion at the anode/organic interface, and also helps to enhance the charge extraction and reduce the leakage current by improvement of contact property. 33 The use of the AgNPs is to enhance the adhesion between the exfoliate graphene (EG) sheets and improves the electric conductivity of the hybrid nanostructured FTEs. Another important parameter of the FTEs for use in flexible OSCs is the surface roughness.…”

Section: Resultsmentioning

confidence: 99%

Ultraviolet‐Durable Flexible Nonfullerene Organic Solar Cells Realized by a Hybrid Nanostructured Transparent Electrode

Gong

Wang

et al. 2020

Solar RRL

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A significant enhancement in ultraviolet (UV) durable indium tin oxide (ITO)-free flexible nonfullerene organic solar cells (OSCs) has been demonstrated using a hybrid nanostructured flexible transparent electrode (FTE), comprising a mixture of 0D silver nanoparticles (AgNPs), 1D Ag nanowires (AgNWs) and 2D exfoliated graphene sheets. The FTE exhibits high optical transparency and electric conductivity, good air stability and full-solution fabrication capability at a low processing temperature. An average power convention efficiency (PCE) of 8.15% has been obtained for the flexible nonfullerene OSCs, based on the blend of poly[(2,6-(4, 8-bis(5-(2-ethylhexyl)thiophen-2-yl)-benzo[1,2-b:4,5-b']dithiophene))-alt-(5,5-(1',3'-di-2-thi enyl-5',7'-bis(2-ethylhexyl)benzo[1',2'-c:4',5'-c'] dithiophene-4,8-dione)] (PBDB-T): 3,9bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dit hieno[2,3-d:2',3'-d']-s-indaceno[1,2-b:5,6-b'] dithiophene (ITIC). The flexible PBDB-T:ITIC OSCs exhibit an excellent UV durability compared to the ITO-based control cell, realized by the tailored FTE absorption in wavelength < 380 nm. The novel FTE developed in this work provides a promising alternative to ITO for use in UV durable flexible OSCs, serving as a UV filter to impede an unavoidable UV-induced degradation in ITO-based OSCs.

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“…The antimony (Sb) powders were prepared by grinding the Sb pellets (99.999%, Aladdin) using an agate mortar for 1 h. Antimonene precursor solution was formulated by dissolving 30 mg of Sb powders in 10 ml of 1-ethyl-3-methylimidazolium trifluoroacetate (99%, Lanzhou Greenchem ILs, LICP, CAS). 32,33 The IT-4F: PM6 (1:1) (Solarmer Materials Inc) mixture solution (20 mg/ml) was prepared by dissolving PM6 and IT-4F, in chlorobenzene (Sigma-Aldrich, 99.8%), with a 0.5% volume ratio of 1, 8-Diiodooctane (DIO) (Sigma-Aldrich) additive.…”

Section: Materials and Preparationmentioning

confidence: 99%

“…29 Modification of the MoO 3 HEL helps to passivate its surface defects, and thereby improving the performance of OSCs. [30][31][32] Recently, significant progress has been made in achieving high efficiency NFA-based OSCs using interlayer modification for enhancing charge extraction at the BHJ/interlayer interfaces, [33][34][35][36] for example, passivating the ZnO electron extraction layer (EEL) surface defects using carbon quantum dots. 34 The advantage of using an antimonene-modified HEL in OSCs has been reported.…”

Section: Introductionmentioning

confidence: 99%

Toward improved stability of nonfullerene organic solar cells: Impact of interlayer and built‐in potential

Lan

et al. 2021

EcoMat

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Improved efficiency and stability of the organic solar cells (OSCs) are the critical considerations for practical applications. The interface between the interlayer and bulk heterojunction has recently been shown as one of the weak links associated with the degradation in the nonfullerene acceptor (NFA)based OSCs. It shows that the removal of the interfacial chemical reactions between the 2-(3-oxo-2,3-dihydroinden-1-ylidene)malononitrile (INCN) moieties in NFA and poly(3,4-ethylenedioxythiophene)-polystyrene sulfonate (PEDOT:PSS) hole extraction layer (HEL) is desired for enhancing the device stability. In this work, we show that the use of a bilayer MoO 3 /antimonene HEL favors the operational stability in OSCs through maintaining a high builtin potential and suppression of an undesired interfacial reaction between INCN moieties in NFA and the PEDOT structures in PEDOT:PSS. A power conversion efficiency of 16.68% is also obtained for the OSCs with a bilayer MoO 3 /antimonene HEL, prepared using a blend system of PM6:Y6, demonstrating its suitability for high-performance OSCs.

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A versatile solution-processed MoO3/Au nanoparticles/MoO3 hole contact for high performing PEDOT:PSS-free organic solar cells

Cited by 21 publications

References 37 publications

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

Ultraviolet‐Durable Flexible Nonfullerene Organic Solar Cells Realized by a Hybrid Nanostructured Transparent Electrode

Toward improved stability of nonfullerene organic solar cells: Impact of interlayer and built‐in potential

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