A5045023259- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Perovskite Materials and Applications
- Microfluidic and Bio-sensing Technologies
- Advancements in Solid Oxide Fuel Cells
- Catalysis and Oxidation Reactions
- Solid-state spectroscopy and crystallography
- Digital Holography and Microscopy
- Catalytic Processes in Materials Science
- Metamaterials and Metasurfaces Applications
- Nanopore and Nanochannel Transport Studies
- Quantum Dots Synthesis And Properties
- Advanced Photocatalysis Techniques
- Terahertz technology and applications
- Plasmonic and Surface Plasmon Research
- 2D Materials and Applications
- Microfluidic and Capillary Electrophoresis Applications
- Orbital Angular Momentum in Optics
- Biosensors and Analytical Detection
- Lipid Membrane Structure and Behavior
ETH Zurich
2018-2024
Massachusetts Institute of Technology
2019-2023
We report the cooling-induced crystallization of layered two-dimensional (2D) lead halide perovskites with controllable inorganic quantum-well thicknesses (n = 1, 2, 3, and 4), organic-spacer chain lengths (butyl-, pentyl-, hexylammonium), A-site cations (methylammonium formamidinium), anions (iodide bromide). Using single-crystal X-ray diffraction, we refined crystal structures for iodide family as a function these compositional parameters across their temperature-dependent phase...
Chiral metallic nanostructures can generate evanescent fields which are more highly twisted than circularly polarized light. However, it remains unclear how best to exploit this phenomenon, hindering the optimal utilization of chiral electromagnetic fields. Here, inspired by optical antenna theory, we address challenge introducing parameters: chirality flux efficiency and aperture. These quantities, based on conservation, quantify generation dissipation We then present a label-free...
Label-free detection of multiple analytes in a high-throughput fashion has been one the long-sought goals biosensing applications. Yet, for all-optical approaches, interfacing state-of-the-art label-free techniques with microfluidics tools that can process small volumes sample high throughput, and surface chemistry grants analyte specificity, poses critical challenge to date. Here, we introduce an optofluidic platform brings together digital holography PDMS by using supported lipid bilayers...
We investigate the phase behavior of two-dimensional (CxH2x+1NH3)2[(MA,FA)PbI3]n−1PbI4 layered perovskites near room temperature (−20 °C to +100 °C) as a function octahedral layer thickness (n = 1, 2, 3, 4), alkylammonium chain length (butyl, pentyl, and hexyl), identity small organic cation (methylammonium formamidinium). Using differential scanning calorimetry X-ray diffraction, we observe reversible first-order transition corresponding partial melting chains separating perovskite layers....
Layered hybrid perovskites exhibit emergent physical properties and exceptional functional performances, but the coexistence of lattice order structural disorder severely hinders our understanding these materials. One unsolved problem regards how dynamics are affected by dimensional engineering inorganic frameworks their interaction with molecular moieties. Here, we address this question using a combination spontaneous Raman scattering, terahertz spectroscopy, simulations. This approach...
Label-free detecting multiple analytes in a high-throughput fashion has been one of the long-sought goals biosensing applications. Yet, for all-optical approaches, interfacing state-of-the-art label-free techniques with microfluidics tools that can process small volumes sample high throughput, and surface chemistry grants analyte specificity, poses critical challenge to date. Here, we introduce an optofluidic platform brings together digital holography PDMS by using supported lipid bilayers...
Label-free detecting multiple analytes in a high-throughput fashion has been one of the long-sought goals biosensing applications. Yet, for all-optical approaches, interfacing state-of-the-art label-free techniques with microfluidics tools that can process small volumes sample high throughput, and surface chemistry grants analyte specificity, poses critical challenge to date. Here, we introduce an optofluidic platform brings together digital holography PDMS by using supported lipid bilayers...