A5043872878- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Fullerene Chemistry and Applications
- 2D Materials and Applications
- Chemical Synthesis and Reactions
- Organic Light-Emitting Diodes Research
- Catalysis and Oxidation Reactions
- Chalcogenide Semiconductor Thin Films
- Gold and Silver Nanoparticles Synthesis and Applications
- Oxidative Organic Chemistry Reactions
- Inorganic and Organometallic Chemistry
- Chemical Synthesis and Analysis
- Radioactive element chemistry and processing
- Polyoxometalates: Synthesis and Applications
- Molecular spectroscopy and chirality
- Quantum Dots Synthesis And Properties
- Thin-Film Transistor Technologies
- Luminescence and Fluorescent Materials
- Carbon Nanotubes in Composites
- Sulfur-Based Synthesis Techniques
- Analytical Chemistry and Sensors
- Semiconductor materials and interfaces
- Nonlinear Optical Materials Studies
- Catalytic Processes in Materials Science
Institute of Problems of Chemical Physics
2017-2024
Moscow Institute of Physics and Technology
2024
Skolkovo Institute of Science and Technology
2024
Perm National Research Polytechnic University
2024
Moscow State University of Fine Chemical Technologies
2016-2018
Scientific Center of RAS in Chernogolovka
1989-2017
Université de Rennes
1989
Centre National de la Recherche Scientifique
1989
Abstract In view of a rapid development and increase in efficiency organic solar cells, reaching their long‐term operational stability represents now one the main challenges to be addressed on way toward commercialization this photovoltaic technology. However, intrinsic degradation pathways occurring cells under realistic conditions remain poorly understood. The light‐induced dimerization fullerene‐based acceptor materials discovered recently is considered causes for burn‐in cells. work, it...
Photochemical degradation of fullerene derivatives producing persistent radical species represents one the key failure mechanisms organic solar cells.
We explored the radiation stability of carbazole-based electron-donor conjugated polymers, acceptor fullerene derivative [60]PCBM, and their blends as active layer components organic solar cells. An exposure to γ rays induced evident degradation effects in bulk samples pristine ([60]PCBM) two investigated polymers: PCDTBT PCDTTBTBTT. The most severe damage occurred [60]PCBM can be concluded from significant losses open circuit voltage, fill factor, efficiency photovoltaic (PV) devices...
Transition metal dichalcogenides (TMDCs), particularly molybdenum disulfide (MoS2), have gained significant attention in the field of optoelectronics and photonics due to their unique electronic optical properties. The integration TMDCs with plasmonic materials allows tailor response offers advantages for photonic applications. This study presents a novel approach synthesize MoS2-Au nanocomposites utilizing femtosecond laser ablation liquid achieve tunable properties near-infrared (NIR)...
Although organic solar cells have started to demonstrate competitive power conversion efficiencies of >18 %, their operational lifetimes remain insufficient for wide practical use and the factors influencing photostability absorber materials completed devices are still not completely understood. A systematic study two series structurally similar [XTBT]n [XTTBTBTT]n polymers (16 structures in total) reveals building blocks that enable highest material stability towards photooxidation:...
New conjugated (BDT-TTBTBTT) n copolymers are featured as promising hole-transport materials for n–i–p perovskite solar cells delivering efficiencies of up to ∼19%.
Material chemical structure – intrinsic photostability relationships are revealed for a family of DPP-based polymers and the pathway DPP block photodegradation is identified, thus providing guidelines designing more stable organic absorbers.
There is a resurgence in the use of triphenylamine-based donor materials (TPA) field perovskite photovoltaics. This work presents synthesis two novel conjugated small molecules (CSM's), TPA-t and EH, which are functionalized with triisopropylsilyl groups 2-ethylhexyl side chains. These show promise as hole transport materials, possess high mobilities 1.5 × 10-4 2.9 10-3 cm2 V−1 s-1 due to self-organization. EH HOMO energy levels at -5.38 -5.31 eV, well-aligned valence band standard...
Our research presents novel TPA-based hole-transport materials with triisopropylsilyl side chains, which possess good alignment of HOMO energy level MAPbI 3 increasing V OC perovskite solar cells up to 1.1 V.
Transition Metal Dichalcogenides (TMDCs) is a rich family of two-dimensional materials with outstanding electrical, mechanical and optical properties. Due to the high refractive index, record anisotropy, set excitonic transitions in visible range at room temperature, TMDCs gained much attention for resonant nanoantennas, subwavelength waveguides all-dielectric metamaterials. To boost further progress field dielectric nanoresonators, femtosecond laser ablation method promising due its...
Herein, we present an efficient approach for screening the intrinsic photostability of organic absorber materials used in photovoltaic applications. Using a series structurally related conjugated polymers and set complementary techniques, established important "material structure-photostability" relationships. In particular, have revealed that introduction alkoxy, thioalkyl, fluorine substituents adversely affects material photostability. Further systematic different types using developed...
The catalytic system Pd (OAc)2-HClO4--CH3CN (AN)-H2O of olefins oxidation was studied. Information about the ways forming active cationic palladium complexes detected. Analysis electron spectroscopy data shows probability existence [Pd(AN)(H2O)3]2+ (λmax = 360-365 nm), [Pd(AN)2(H2O)2]2+ 335-345 nm) in system. preparation method stable and sufficient for obtaining reproducible kinetic designed.
Due to their high refractive index, record optical anisotropy and a set of excitonic transitions in visible range at room temperature, transition metal dichalcogenides have gained much attention. Here, we adapted femtosecond laser ablation for the synthesis WSe2 nanoparticles (NPs) with diameters from 5 150 nm, which conserve crystalline structure original bulk crystal. This method was chosen due its inherently substrate-additive-free nature output level. The obtained absorb light stronger...
The NDT-stabilized devices exhibited suppressed trap – assisted recombination and improved operational stability. Thus, NDT might serve as a prospective stabilizing additive for the development of efficient stable organic solar cells.
The Cover Feature shows that the photostability of conjugated polymers used as absorber materials for organic solar cells strongly depends on chemical structure and properties building blocks. Using electron-rich moieties facilitates photooxidation, whereas composed weak electron donor acceptor units exhibit high electrochemical oxidation potentials show excellent stability towards light-induced degradation. More information can be found in Full Paper by I. V. Martynov et al.
Abstract Herein, we present a systematic study of the photochemical behavior set fullerene compounds bearing various organic addends attached to cage. It has been shown that yield photodimerization products strongly depends on structure and electronic properties material, primarily electron affinity (acceptor strength) modified core. This finding being inconsistent with conventional [2+2]cycloaddition mechanism pointed an alternative pathway. proposed pathway involves photoinduced charge...
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