MoO3/CuI hybrid buffer layer for the optimization of organic solar cells based on a donor–acceptor triphenylamine

Bérnède, J.C.; Cattin, Linda; Makha, Mohamed; Jeux, Victorien; Leriche, Philippe; Roncali, Jean; Froger, Vincent; Morsli, M.; Addou, M.

doi:10.1016/j.solmat.2012.12.003

Cited by 45 publications

(32 citation statements)

References 46 publications

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“…Bilayer OSCs associating DA 3 ‐1 with C 60 as electron‐acceptor (ITO/PEDOT‐PSS/ DA 3 ‐1 /C 60 /LiF/Al) (PEDOT‐PSS, poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate) led to a power conversion efficiency (PCE) of 1.85% (at 80 mW under AM 1.5 simulated solar irradiation). A few years later, the introduction of a hybrid anode buffer layer MoO 3 /CuI led to a PCE of 2.50% …”

Section: Tpa‐based Push–pull Molecular Donors For Organic Photovoltaicsmentioning

confidence: 99%

Triphenylamine and some of its derivatives as versatile building blocks for organic electronic applications

Blanchard

Malacrida

Cabanetos

et al. 2018

Polymer International

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116

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This review article gives an overview of past and current activities in the Linear Conjugated Systems Group of Angers and in the IPOC – Functional Polymers Group of the Institute of Polymer Chemistry of Stuttgart on the use of triphenylamine (TPA) as versatile building block for organic electronics. In the first part, the properties of TPA itself are introduced including geometrical and energy level considerations. Dimerization of TPA to tetraphenylbenzidine upon electrochemical oxidation is highlighted. The blocking of TPA para‐positions and its implications in terms of electroactivity is further discussed. The second part shows that dimerization of TPA as pendant redox‐active moieties in polymers is a versatile strategy to crosslink polymer films. Coming from redox homopolymers the crosslinking strategy is extended towards conjugated redox polymers based on polythiophenes and block copolymers. Conductivity mechanisms and the influence of doping level on conductivity are probed with cyclic voltammetry coupled with in situ conductance and four‐point probe measurements. The last part is dedicated to the use of TPA as an electron‐donating block in the design of donor‐π‐acceptor chromophores and their use as active material in organic photovoltaics. An overview of some relevant TPA‐based push–pull molecules from the literature and our contribution to this field is presented emphasizing the progress of the photovoltaic performance of organic solar cells made over the last decade. © 2018 Society of Chemical Industry

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Section: Tpa‐based Push–pull Molecular Donors For Organic Photovoltaicsmentioning

confidence: 99%

Triphenylamine and some of its derivatives as versatile building blocks for organic electronic applications

Blanchard

Malacrida

Cabanetos

et al. 2018

Polymer International

Self Cite

116

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“…18 A thin layer (~40 nm) of PEDOT: PSS or CuI film was deposited on the FTO substrates by spin-coating. 34,50 As shown by SEM study, the FTO electrode was entirely covered with PEDOT: PSS, however, it was not completely covered by CuI. 42 The composition and morphology of the CH 3 NH 3 PbI 3 films were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM) measurements.…”

Section: Fabrication and Characterization Of Perovskite Solar Cellsmentioning

confidence: 99%

Low-cost solution-processed copper iodide as an alternative to PEDOT:PSS hole transport layer for efficient and stable inverted planar heterojunction perovskite solar cells

et al. 2015

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Inverted planar heterojunction (PHJ) perovskite solar cells have attracted great attention due to their advantages of low-temperature fabrication on flexible substrates by solution processing with high efficiency. Poly(3,4ethylenedioxythiophene): polystyrenesulfonate (PEDOT:PSS) is the most widely used hole transport layer (HTL)in inverted PHJ perovskite solar cells; however, the acidic and hygroscopic nature of PEDOT: PSS can cause degradation and reduce the device stability. In this work, we demonstrated that low-cost solution-processed hydrophobic copper iodide (CuI) can serve as a HTL to replace PEDOT: PSS in inverted PHJ perovskite solar cells with high performance and enhanced device stability. Power conversion efficiency (PCE) of 13.58% was achieved by employing CuI as a HTL, slightly exceeding PEDOT: PSS based device with PCE of 13.28% under the same experimental conditions. Furthermore, the CuI based devices exhibited better air stability than that of PEDOT: PSS based devices. The results indicate that low-cost solution-processed CuI is a promising alternative to PEDOT: PSS HTL and could be widely used in inverted PHJ perovskite solar cells.

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“…The CuIinduced vertical phase separation implies a unique interaction between donor:acceptor components and CuI film, which might partially be due to much lower surface energy of hydrophobic CuI (26 mJ/m 2 ) as compared with hydrophilic PEDOT:PSS (73 mJ/m 2 ) HTL. [46,47]. The apparent reduction of lamellar texture should therefore not necessarily be interpreted as resulting from a preferred face-on orientation of P3HT on CuI, but perhaps more due to the fact that P3HT crystalline domains are predominantly in the bulk and near the surface of the BHJ, and are therefore more randomly oriented than if they were to grow on the flat surface of the substrate.…”

Section: Discussion Of the Templating Effect Of Cui On The Solution-pmentioning

confidence: 99%

Highly efficient organic solar cells based on a robust room-temperature solution-processed copper iodide hole transporter

et al. 2015

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Achievin Q3 g high performance and reliable organic solar cells hinges on the development of stable and energetically suitable hole transporting buffer layers in tune with the electrode and photoactive materials of the solar cell stack. Here we have identified solution-processed Copper(I) iodide (CuI) thin films with low-temperature processing conditions as an effective hole-transporting layer (HTL) for a wide range of polymer:fullerene bulk heterojunction (BHJ) systems. The solar cells using CuI HTL show higher power conversion efficiency (PCE) in standard device structure for polymer blends, up to PCE of 8.8%, as compared with poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) (PEDOT:PSS) HTL, for a broad range of polymer:fullerene systems. The CuI layer properties and solar cell device behavior are shown to be remarkably robust and insensitive to a wide range of processing conditions of the HTL, including processing solvent, annealing temperature (room temperature up to 200 1C), and film thickness. CuI is also shown to improve the overall lifetime of solar cells in the standard architecture as compared to PEDOT:PSS. We further demonstrate promising solar cell performance when using CuI as top HTL in inverted device architecture. The observation of uncommon properties, such as photoconductivity of CuI and templating effects on the BHJ layer formation, is also discussed. This study points to CuI as being a good candidate to replace PEDOT:PSS in solution-processed solar cells thanks to the facile implementation and demonstrated robustness of CuI thin films. .sa (A. Amassian). Nano Energy (]]]]) ], ]]]-]]]Please cite this article as: K. Zhao, et al., Highly efficient organic solar cells based on a robust room-temperature solution-processed Copper iodide hole transporter, Nano Energy (2015), http://dx.

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MoO3/CuI hybrid buffer layer for the optimization of organic solar cells based on a donor–acceptor triphenylamine

Cited by 45 publications

References 46 publications

Triphenylamine and some of its derivatives as versatile building blocks for organic electronic applications

Triphenylamine and some of its derivatives as versatile building blocks for organic electronic applications

Low-cost solution-processed copper iodide as an alternative to PEDOT:PSS hole transport layer for efficient and stable inverted planar heterojunction perovskite solar cells

Highly efficient organic solar cells based on a robust room-temperature solution-processed copper iodide hole transporter

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