Mo(S x O y ) thin films deposited by electrochemistry for application in organic photovoltaic cells

Martínez-Rojas, Francisco; Hssein, M.; Jouad, Zouhair El; Armijo, Francisco; Cattin, Linda; Louarn, Guy; Stéphant, Nicolas; Valle, M.; Addou, M.; Soto, Juan; Bérnède, J.C.

doi:10.1016/j.matchemphys.2017.08.021

Cited by 8 publications

(8 citation statements)

References 31 publications

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“…An effective way to address films’ low transmittance is by using composites or hybrid layers with tunable transparency. Martinez-Rojas et al reported a hybrid layer of MoS x :MoO 3 on FTO substrates with high transmittance by a pulsed electrochemical method [ 199 ]. After 150 cycles of depositing MoS x on the MoO 3 , the percentage of transmitted light decreased significantly due to the agglomeration of MoS x (see Figure 8 a).…”

Section: Hole-transporting Materials As Htls In Oscsmentioning

confidence: 99%

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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%

Section: Figures Schemes and Tablesmentioning

confidence: 99%

Recent Advances in Hole-Transporting Layers for Organic Solar Cells

et al. 2022

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“…Its stable structure consists of hexagonal layers co-bonded via Van der Waals forces, and each layer has covalent bonds between Mo and S (S-Mo-S). The tunable bandgap energy from 1.2 eV for bulk MoS 2 material to 1.8 eV in monolayer and the transition of the bandgap from indirect to direct bandgap has generated massive attention in exploring MoS 2 for various applications, such as hydrogen production [4][5][6], optoelectronic [7,8], lubrication [9], batteries [10], photocatalysis [11], and transistors [12].…”

Section: Introductionmentioning

confidence: 99%

“…It is worth noting that over the past years, many efforts have been devoted to exploring MoS 2 as an absorber layer for photovoltaic cells (PVs) since MoS 2 can efficiently absorb visible light. However, the failure of this approach brings the scientists to develop another way to use MoS 2 as a hole transport layer (HTL) in organic photovoltaic cells (OPVs) [8]. Currently, MoS 2 represents an alternative material that could combine several essential characteristics of an ideal interlayer for the next solar cell generation and OLED applications [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…Thanks to the development achieved in terms of a synthetic route to obtain controllable synthesis and a large-scale and uniform atomic layer. Among the preparation techniques of the MoS 2 layer, we can find liquid-phase exfoliation (LPE) [17], sol-gel/spin-coating [18], thermal decomposition of ammonium tetrathiomolybdate ((NH 4 ) 2 MoS 4 )/spin-coating [19], electrochemical process [8], and chemical vapor deposition (CVD) [20]. However, the use of a pure MoS 2 thin layer is still unsatisfactory to reach a good band matching between the electrode and active layer in OPVs and a high electrochemical performance and electrode stability for LIBs.…”

Section: Introductionmentioning

confidence: 99%

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Efficient and Facile Synthetic Route of MoO3:MoS2 Hybrid Thin Layer via Oxidative Reaction of MoS2 Nanoflakes

et al. 2022

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In the present study, MoO3:MoS2 hybrid thin layers have been synthesized through partial oxidation of MoS2. We have demonstrated that the reaction requires darkness conditions to decrease the oxidation rate, thus obtaining the hybrid, MoO3:MoS2. A simple liquid-phase exfoliation (LPE) is carried out to achieve homogenous MoS2 nanoflakes and high reproducibility of the results after MoS2 oxidation. XPS analyses reveal the presence of MoO3, MoS2, and MoOxSy in the hybrid layer. These results are also confirmed by X-ray diffraction and high-resolution TEM. Optical absorbance reveals that the absorption peaks of the MoO3:MoS2 hybrid are slightly redshifted with the appearance of absorption peaks in the near-infrared region due to the defects created after the oxidation reaction. The composition and atomic percentages of each component in the hybrid layer as a function of reaction time have also been reported to give perspective guides for improving electronic and optoelectronic devices based on 2D-MoS2.

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