Astita Dubey
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View article: Materials discovery in combinatorial and high-throughput synthesis and processing: A new Frontier for SPM
Materials discovery in combinatorial and high-throughput synthesis and processing: A new Frontier for SPM Open
For over three decades, scanning probe microscopy (SPM) has been a key method for exploring material structures and functionalities at nanometer and often atomic scales in ambient, liquid, and vacuum environments. Historically, SPM applica…
View article: LLM-Guided Ligand Design for Controlling Nanoscopic Morphology of CsPbBr3 Perovskite Nanocrystals
LLM-Guided Ligand Design for Controlling Nanoscopic Morphology of CsPbBr3 Perovskite Nanocrystals Open
Traditional nanocrystal ligand design often relies on trial-and-error, limiting systematic exploration. Here, we present a framework integrating a Large Language Model (LLM) agent into experimental planning, iteratively refining ligand des…
View article: Magnetoelectric Decoupling in Bismuth Ferrite
Magnetoelectric Decoupling in Bismuth Ferrite Open
It is still an open question if magnetoelectric coupling occurs at the atomic scale in multiferroic BiFeO3. Nuclear solid-state techniques monitor local fields at the atomic scale. Using such an approach, we show that, contrary to our own …
View article: Impact of Halogen Groups on the Properties of PEA‐Based 2D Pb–Sn Halide Perovskites
Impact of Halogen Groups on the Properties of PEA‐Based 2D Pb–Sn Halide Perovskites Open
Tuning broad emission in 2D Pb–Sn halide perovskites (HPs) is essential for advancing optoelectronic applications, particularly for color‐tunable and white‐light‐emitting devices. This broad emission is linked to structural factors, such a…
View article: Materials Discovery in Combinatorial and High-throughput Synthesis and Processing: A New Frontier for SPM
Materials Discovery in Combinatorial and High-throughput Synthesis and Processing: A New Frontier for SPM Open
For over three decades, scanning probe microscopy (SPM) has been a key method for exploring material structures and functionalities at nanometer and often atomic scales in ambient, liquid, and vacuum environments. Historically, SPM applica…
View article: Machine Learning-Based Reward-Driven Tuning of Scanning Probe Microscopy: Towards Fully Automated Microscopy
Machine Learning-Based Reward-Driven Tuning of Scanning Probe Microscopy: Towards Fully Automated Microscopy Open
Since the dawn of scanning probe microscopy (SPM), tapping or intermittent contact mode has been one of the most widely used imaging modes. Manual optimization of tapping mode not only takes a lot of instrument and operator time, but also …
View article: Front Cover: Bi site doped Ferroelectric BiFe<sub>0.95</sub>Mn<sub>0.05</sub>O<sub>3</sub> Nanoparticles for Hydrogen Evolution Reaction (ChemCatChem 12/2024)
Front Cover: Bi site doped Ferroelectric BiFe<sub>0.95</sub>Mn<sub>0.05</sub>O<sub>3</sub> Nanoparticles for Hydrogen Evolution Reaction (ChemCatChem 12/2024) Open
The Front Cover graphic illustrates the process of hydrogen evolution during water splitting through electrocatalysis, highlighting the functionality of cationically engineered bismuth ferrite (BFO) nanoparticles (NPs). In their Research A…
View article: Magneto-electric decoupling in bismuth ferrite
Magneto-electric decoupling in bismuth ferrite Open
It is still under intensive discussion, how magnetoelectric coupling actually occurs at the atomic scale in multiferroic BiFeO3. Nuclear solid-state techniques monitor local fields at the atomic scale. Using such an approach, we show that,…
View article: Ferroelectric‐Photocatalysts for Degradation of Phthalate: Doped BiFeO<sub>3</sub>‐Graphene Oxide Nanocomposites
Ferroelectric‐Photocatalysts for Degradation of Phthalate: Doped BiFeO<sub>3</sub>‐Graphene Oxide Nanocomposites Open
A complete photocatalytic degradation of dibutyl phthalate (DBP) using ferroelectric doped‐bismuth ferrite‐ (BiFeO 3 ; BFO) graphene oxide (GO) nanocomposites is achieved. The local ferroelectric properties of doped BFO photocatalysts supp…
View article: Control of physical properties in BiFeO<sub>3</sub> nanoparticles via Sm<sup>3+</sup> and Co<sup>2+</sup> ion doping
Control of physical properties in BiFeO<sub>3</sub> nanoparticles via Sm<sup>3+</sup> and Co<sup>2+</sup> ion doping Open
Highly crystalline BiFeO 3 (BFO), Bi 0.97 Sm 0.03 FeO 3 (Sm-BFO) and BiFe 0.97 Co 0.03 O 3 (Co-BFO) nanoparticles (NPs) were utilized as potential magnetic hyperthermia agents at two different frequencies in the radiofrequency (RF) range, …
View article: Lead-free organic–inorganic azetidinium alternating metal cation bromide: [(CH <sub>2</sub> ) <sub>3</sub> NH <sub>2</sub> ] <sub>2</sub> AgBiBr <sub>6</sub> , a perovskite-related absorber
Lead-free organic–inorganic azetidinium alternating metal cation bromide: [(CH <sub>2</sub> ) <sub>3</sub> NH <sub>2</sub> ] <sub>2</sub> AgBiBr <sub>6</sub> , a perovskite-related absorber Open
A new metal bromide perovskite derivative, azetidinium silver bismuth bromide is synthesized as a light-absorbing material.
View article: Rare-earth doped BiFe0.95Mn0.05O3 nanoparticles for potential hyperthermia applications
Rare-earth doped BiFe0.95Mn0.05O3 nanoparticles for potential hyperthermia applications Open
Ionic engineering is exploited to substitute Bi cations in BiFe 0.95 Mn 0.05 O 3 NPs (BFM) with rare-earth (RE) elements (Nd, Gd, and Dy). The sol-gel synthesized RE-NPs are tested for their magnetic hyperthermia potential. RE-dopants alte…
View article: Mono‐, Di‐, and Tri‐Valent Cation Doped BiFe<sub>0.95</sub>Mn<sub>0.05</sub>O<sub>3</sub> Nanoparticles: Ferroelectric Photocatalysts
Mono‐, Di‐, and Tri‐Valent Cation Doped BiFe<sub>0.95</sub>Mn<sub>0.05</sub>O<sub>3</sub> Nanoparticles: Ferroelectric Photocatalysts Open
The ferroelectricity of multivalent codoped Bismuth ferrite (BiFeO 3 ; BFO) nanoparticles (NPs) is revealed and utilized for photocatalysis, exploiting their narrow electronic bandgap. The photocatalytic activity of ferroelectric photocata…
View article: Temperature dependence of the local electromagnetic field at the Fe site in multiferroic bismuth ferrite
Temperature dependence of the local electromagnetic field at the Fe site in multiferroic bismuth ferrite Open
In this paper, we present a study of the temperature-dependent characteristics of electromagnetic fields at the atomic scale in multiferroic bismuth ferrite (BiFeO3 or BFO). The study was performed using time differential perturbed angular…
View article: Role of cooperative factors in the photocatalytic activity of Ba and Mn doped BiFeO<sub>3</sub> nanoparticles
Role of cooperative factors in the photocatalytic activity of Ba and Mn doped BiFeO<sub>3</sub> nanoparticles Open
The escalated photocatalytic (PC) efficiency of the visible light absorber Ba-doped BiFe 0.95 Mn 0.05 O 3 (BFM) nanoparticles (NPs) as compared to BiFeO 3 (BFO) NPs is reported for the degradation of the organic pollutants rhodamine B and …