Efficient and stable organic solar cells based on all-solution-processed metal oxide transport layers

Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(47), С. 26277 - 26284

Опубликована: Янв. 1, 2023

Doping of solution-processed molybdenum oxide hole transport layers enabled the efficient and stable organic solar cells.

Язык: Английский

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Photochromic Spiropyran-Based Dual-Emitting Luminescent Hybrid Films for Dynamic Information Anticounterfeiting

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(33), С. 44018 - 44025

Опубликована: Авг. 9, 2024

Photoluminescent materials are widely used for information storage and anticounterfeiting, while most of them have the disadvantages static performance weak processability, which is still a challenging task in developing dynamic anticounterfeiting with high security levels. Herein, we fabricated novel photostimuli-responsive dual-emitting luminescent material UPTES-SPn-Tb-hfa, was obtained by introducing photochromic molecule spiropyran (SP) lanthanide complex (Tb-hfa) into siloxane-polyether matrix using sol–gel process. Due to conformation-dependent fluorescence resonance energy transfer between Tb-hfa donor SP acceptor, ring-closing (SP)/ring-opening (MC) isomerization unit leads reversible luminescence switching UPTES-SPn-Tb-hfa. This composite has great potential advanced because advantage rapidly repeatable encryption/decryption at least 8 times colors within 15 s. In addition, due its two centers (Tb3+ MC), color this can be regulated 254 365 nm UV-light irradiation, facilitates design multicolored labels. Our work presents methodology fabricate materials, significantly enhancing applications.

Язык: Английский

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Fermi Level Shifts of Organic Semiconductor Films in Ambient Air

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Янв. 8, 2025

Here, the Fermi level (EF) shifts of several donor and acceptor materials in different atmospheres are systematically studied by following work function (WF) changes with Kelvin probe measurements, ultraviolet photoelectron spectroscopy, near-ambient pressure X-ray spectroscopy. Reversible EF found trend higher WFs measured ambient air lower high vacuum compared to ultrahigh vacuum. The energy morphology-dependent, two mechanisms proposed: (1) competition between p-doping induced O2 H2O/O2 complexes n-doping H2O; (2) polar H2O molecules preferentially modifying ionization one frontier molecular orbitals over other. results provide a deep understanding role organic semiconductors, guiding way toward air-stable electronic devices.

Язык: Английский

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Siloxane Decorated Water‐Obstructing Guest for Efficient Air‐Processed OSCs

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 20, 2025

The future applications of organic solar cells (OSCs) necessitate a thorough consideration their ambient stability and processability, particularly for large area air-processed engineering, but water-induced degradation active layer critically restricts its development. To surmount this hurdle, water-obstructing guest (WOG) strategy is proposed to attenuate the interaction with water molecules, reduce defects in blend films, enhance devices under high relative humidity (RH) conditions by introducing siloxane-containing polymer D18-SiO. In addition suppressing trap density, WOG hydrophobic low surface free energy characteristics, forms capping that blocks moisture penetration while preserving ideal nano-micromorphology crystallinity tight packing properties. Power conversion efficiencies (PCE) >19% reported spin coating OSCs fabricated across an RH range 20 90%, PCE >17% blade at 90% RH. D18-SiO, serves as protective barrier device stability, corresponding unencapsulated retained 80.7% initial performance air (≈ 40% RH) after 600-h maximum power point tracking continuous light illumination, showcasing great potential designing large-scale production OSCs.

Язык: Английский

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High-performance and scalable large-area organic solar cells enabled by alloy-like composite-induced optimized morphology processed from non-halogenated solvent in air

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161811 - 161811

Опубликована: Март 1, 2025

Язык: Английский

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The stability of polymethylphenylsiloxane varnish modified with SiO2 nanoparticles and exposed to solar spectrum quanta

Optical Materials, Год журнала: 2025, Номер unknown, С. 116980 - 116980

Опубликована: Март 1, 2025

Язык: Английский

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Suppressing Voltage Loss and Improving Charge Generation via Fluorinated Molecular Backbone of Low-Cost Polymers for Efficient Organic Solar Cells

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

High efficiency and low cost are indispensable for the industrialization of organic solar cells (OSCs), which urgently needs to be addressed. Herein, three simple-structure terpolymer donors, PTQ13-5, PTQ13-10, PTQ13-15, developed by embedding a simple fluorinated unit 3-fluorothiophene (T-F) into molecular backbone polymer PTQ10 pursue low-cost high-efficiency photovoltaic molecules. Three terpolymers show obviously characteristics due their short synthesis routes high total synthetic yields from cheap raw materials. The introduction T-F leads blue-shifted absorption, down-shifted HOMO levels, more favored aggregation morphology terpolymers, mainly strong electron-withdrawing property F atom, along with presence noncovalent F···H interactions. As result, PTQ13-5-based OSC achieves enhanced power conversion (PCE) 18.42% suppressed voltage loss (Vloss) because nonradiative 0.189 eV charge generation; this is one highest PCEs OSCs based on This work suggests that fluorination an effective strategy suppress Vloss improve generation OSCs, it offers rational guide in design molecules performance.

Язык: Английский

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Recent Advances in Ambient-air-processed Organic Photovoltaics : Devices Design and Printing Technology

Опубликована: Май 1, 2025

Язык: Английский

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Electrochemical Energy Storage toward Extreme Conditions: Driving Human Exploration beyond Current Boundaries

Chemical Reviews, Год журнала: 2025, Номер unknown

Опубликована: Май 30, 2025

Major projects reliant on electric energy support, such as manned spaceflight, ocean exploration, and polar development, will encounter extreme environmental challenges. The most representative scenarios, including deep space, sea, earth, regions, be systematically discussed in this review. interaction of multiple factors under complex working conditions leads to multifaceted failures that significantly compromise the performance electrochemical storage systems (EESSs). Specifically, review examines EESSs operating conditions, temperatures, pressures, electromagnetic radiations so on. It addresses key challenges summarizes solutions based a mechanistic understanding new reactions strategies enhance performance. Additionally, it provides comprehensive overview experimental simulated technology, from microscopic physicochemical mechanisms level whole battery chemistry, explores potential applications for future. Finally, offers prospective analyses demand future space involving missions Lunar surface, Mars asteroids. This both theoretical technical foundation developing high-performance materials environments. contributes advancing diverse application scenarios high-power EESSs.

Язык: Английский

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High Performance Air‐Processed Organic Photovoltaic Modules (≈55 cm²) with an Efficiency of >17.50% by Employing Halogen‐Free Solvent Processed Polymer Donors

Advanced Energy Materials, Год журнала: 2023, Номер 13(46)

Опубликована: Окт. 27, 2023

Abstract Organic photovoltaic (OPV) sub‐modules shall be feasible for production using halogen‐free solvents in air,high power conversion efficiencies (PCEs), and long‐term stability, which are challenging requirements. To achieve this goal, air‐processed OPVs fabricated by employing a synthesized set of π‐conjugated polymers, NAP‐T‐SiBTZ (P1) NAP‐TT‐SiBTZ (P2), with thiophene thienothiophene π‐spacers, respectively. P1 P2 incorporated ternary show excellent PCEs used to produce small‐area, sub‐module devices o ‐xylene as the solvent. Interestingly, P2‐added has remarkable 17.62% (PM6:P2:Y7) 17.96% (PM6:P2:L8‐BO), is highest reported OPVs. . Notably, P2‐associated blends exhibit nano‐morphology, increased charge carrier mobilities, exciton dissociation, decreased non‐geminate recombination, deemed responsible enhanced observed. In addition, demonstrates high efficiency thick‐film device (>300 nm), PCE >16.50%. 55 cm 2 produced bar coating open air 13.88%. Additionally, P2‐containing demonstrate impressive thermal photo‐stabilities. This study shows potential an OPV that may low‐cost solar cell at low cost exceptional commercial value.

Язык: Английский

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