A5063594021- Perovskite Materials and Applications
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- Solid-state spectroscopy and crystallography
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Organic Light-Emitting Diodes Research
- Photoreceptor and optogenetics research
- Photochromic and Fluorescence Chemistry
- Advanced Memory and Neural Computing
- Electrocatalysts for Energy Conversion
- Optical properties and cooling technologies in crystalline materials
- 2D Materials and Applications
- Fuel Cells and Related Materials
- Catalytic Processes in Materials Science
- Luminescence and Fluorescent Materials
- Gas Sensing Nanomaterials and Sensors
- Electronic and Structural Properties of Oxides
- Electrochemical Analysis and Applications
- Crystallography and molecular interactions
- Synthesis and properties of polymers
- Semiconductor Lasers and Optical Devices
- Transition Metal Oxide Nanomaterials
Institute of Problems of Chemical Physics
2016-2025
Russian Academy of Sciences
2011-2022
Skolkovo Institute of Science and Technology
2017-2021
Scientific Center of RAS in Chernogolovka
2014-2020
Shenzhen University
2020
Energy Storage Systems (United States)
2019
Semenov Institute of Chemical Physics
2014
We report here all inorganic CsPbI3 planar junction perovskite solar cells fabricated by thermal coevaporation of CsI and PbI2 precursors. The best devices delivered power conversion efficiency (PCE) 9.3 to 10.5%, thus coming close the reference MAPbI3-based (PCE ≈ 12%). These results emphasize that lead halide perovskites can successfully compete in terms photovoltaic performance with most widely used hybrid materials such as MAPbI3.
We report a careful and systematic study of thermal photochemical degradation series complex haloplumbates APbX3 (X = I, Br) with hybrid organic (A+ CH3NH3) inorganic Cs+) cations under anoxic conditions (i.e., without exposure to oxygen moisture by testing in an inert glovebox environment). show that the most common materials (e.g., MAPbI3) are intrinsically unstable respect heat- light-induced stress and, therefore, can hardly sustain real solar cell operation conditions. On contrary,...
Herein, we have proposed a novel tridentate chelation strategy to manage the excessive amount of unreacted PbI 2 in perovskite films, achieving inverted PSC device with PCE 25.66% by sequential deposition method.
The data on nanostructured materials used in the design of low-temperature fuel cells is generalized. factors responsible for increase conductivity hybrid membranes containing inorganic nanoparticles are ana- lyzed. approaches to enhancing efficiency plati- num catalysts that provide transition from conventional systems nanosized including 'core-shell' poly- metallic discussed. hypotheses explain reasons enhanced stability these with respect carbon monoxide impurity considered. bibliography...
In the present Communication we discuss a field-induced and photoinduced self-doping chemistry resulting in formation of positively negatively charged vacancies MAPbI3 perovskite films. These induce p-type n-type doping absorber leading to realization p-i-n device operation mechanism.
Abstract This paper presents a systematic study of the influence electron‐transport materials on operation stability inverted perovskite solar cells under both laboratory indoor and natural outdoor conditions in Negev desert. It is shown that all devices incorporating Phenyl C 61 Butyric Acid Methyl ester ([60]PCBM) layer undergo rapid degradation illumination without exposure to oxygen moisture. Time‐of‐flight secondary ion mass spectrometry depth profiling reveals volatile products from...
We report the first systematic assessment of intrinsic photothermal stability a large panel complex lead halides APbX3 incorporating different univalent cations (A = CH3NH3+, [NH2CHNH2]+, Cs+) and halogen anions (X Br, I) using series analytical techniques such as UV-vis X-ray photoelectron spectroscopy, diffraction, EDX analysis, atomic force scanning electron microscopy, ESR mass spectrometry. show that heat stress light soaking induce severe degradation perovskite films even in absence...
Abstract Tunability of optoelectronic properties lead halide perovskites achieved through mixing can potentially enable their multiple applications, for example, in tandem solar cells and light‐emitting diodes. However, mixed are unstable under illumination due to segregation Br‐rich I‐rich phases, which negatively affects the performance operational stability devices. Research efforts over past years provided a substantial understanding factors influencing light‐induced phase segregation....
Abstract Using bromoantimonate (V) (N‐EtPy)[SbBr 6 ] as an example, it is demonstrated that ABX compounds can form perovskite‐like 3D crystalline frameworks with short interhalide contacts, enabling advanced optoelectronic characteristics of these materials. The designed compound shows impressive performance in planar junction solar cells delivering external quantum efficiency ≈80% and power conversion ≈4%, thus being comparable the conventional perovskite material MAPbBr 3 . discovery first...
Here we report a systematic study of the Pb2+ substitution in hybrid iodoplumbate MAPbI3 with series elements affecting optoelectronic, structural, and morphological properties system. It has been shown that even partial replacement lead Cd2+, Zn2+, Fe2+, Ni2+, Co2+, In3+, Bi3+, Sn4+, Ti4+ results significant deterioration photovoltaic characteristics. On contrary, Hg-containing MAPb1-xHgxI3 salts demonstrated considerably improved solar cell performance at optimal mercury loading. This...
Hybrid perovskite solar cells attract a great deal of attention due to the feasibility their low-cost production and demonstration impressive power conversion efficiencies (PCEs) exceeding 25%. However, insufficient intrinsic stability lead halides under light soaking thermal stress impedes practical implementation this technology. Herein, we show that photothermal aging widely used absorber such as MAPbI3 can be suppressed significantly by using polyvinylcarbazole (PVC) stabilizing agent....
Optical memory devices based on photoswitchable OFETs comprising light sensitive layers of photochromic spiropyran salts revealed advanced electrical characteristics and superior stability.
Memory devices with superior electrical characteristics were designed using an interfacial spirooxazine layer introduced between dielectric and semiconductor layers in OFETs.
Structurally different complex bismuth iodides with 1D anionic frameworks were designed and explored as semiconductor materials for photovoltaic devices.
The incorporation of Eu 2+ cations in lead-halide perovskites improves their photostability and radiation hardness with respect to γ-rays high-energy electron fluences, which are the key prerequisites for aerospace applications PSCs.
It was shown that ESR spectroscopy is a very useful technique for monitoring the photochemical and thermal degradation of conjugated polymers commonly used in organic solar cells. The relative stability materials can be quantified by comparing rates trap accumulation (dC(R)/dt) estimated from their profiles.
In this work, we report a comparative study of the gamma ray stability perovskite solar cells based on series absorbers including MAPbI3 (MA = methylammonium), MAPbBr3, Cs0.15FA0.85PbI3 (FA formamidinim), Cs0.1MA0.15FA0.75PbI3, CsPbI3, and CsPbBr3. We reveal that composition material strongly affects radiation cells. particular, were found to be most resistant rays since undergoes rapid self-healing due special gas-phase chemistry analyzed with ab initio calculations. The fact can withstand...
High-efficiency n–i–p perovskite solar cells generally incorporate organic hole-transport layer materials such as spiro-OMeTAD or PTAA, which have intrinsically low charge carrier mobility and therefore require doping to improve transport properties. However, using dopants is known affect badly the operational stability of cells. Therefore, development suitable dopant-free critical issue for realizing with high efficiency long lifetimes. Herein, a series small molecules triazatruxene,...
Abstract Dimensionality engineering involving the low‐dimensional and 3D perovskites has been demonstrated as an efficient promising strategy to modulate interfacial energy loss well instability in perovskite solar cells (PSCs). Herein, use of fluorinated Cesium Lead Iodide (CsPbI 3 ) quantum dot (PQD) is first reported interface modification layer for PSCs. The binding between CsPbI PQD surface native oleic acid (OLA)/oleylamine (OAm) ligands governed by a dynamic adsorption–desorption...
Inverted perovskite solar cells with a p-i-n configuration have attracted considerable attention from the research community because of their simple design, insignificant hysteresis, improved operational stability, and low-temperature fabrication technology. However, this type device is still lagging behind classical n-i-p in terms its power conversion efficiency. The performance can be increased using appropriate charge transport buffer interlayers inserted between main electron layer top...
Modification of PTAA molecular structure significantly improves the power conversion efficiencies dopant-free HTL n–i–p perovskite solar cells.