Publications related to Optical and thermal characterization of a group-III nitride semiconductor membrane by microphotoluminescence spectroscopy and Raman thermometry

Related publications (10)

Optical properties of 2D-material/III-nitride van der Waals heterostructures

Two decades after the isolation of graphene, hybrid van der Waals (vdW) heterostructures, combining 2D materials with conventional semiconductors, have garnered significant attention for their potential to create novel functionalities on established platfo ...

EPFL2025

Advancements and Prospects of Near-infrared-light Driven Co2 Reduction Reaction

Jiaqi Xu

In the realm of photoconversion of CO2 into high-value chemicals, the importance of near-infrared (NIR) light is gradually gaining recognition. Relative to ultraviolet (UV) and visible light, NIR light (700-2500 nm), accounting for ca. 50% of solar energy, ...

Royal Society of Chemistry2025

3D Printing of Stiff Photonic Microparticles into Load-Bearing Structures

Paul Louison Nathan Hardivillé, Esther Amstad, Pauline Camille Charlotte Pradal

Structural colors are bright and possess a remarkable resistance to light exposure, humidity, and temperature such that they constitute an environmentally friendly alternative to chemical pigments. Unfortunately, upscaling the production of photonic struct ...

2025

Electronic structure of Bi2 Ir2 O7 probed by resonant inelastic x-ray scattering at the oxygen K edge: Metallicity, hybridization, and electronic correlations

Henrik Moodysson Rønnow

The electronic structure of metallic Bi2Ir2O7 has been investigated by a combination of soft x-ray absorption spectroscopy, x-ray emission spectroscopy (XES), and resonant inelastic x-ray scattering (RIXS) in the vicinity of the oxygen K edge. The O K-edge ...

2025

Investigating metastability in the bandstructure of correlated matter by ultrafast photoemission spectroscopy

Lukas Jürgen Hellbrück

Advancements of laser technologies and material science have revolutionized the ability to manipulate matter through irradiation with ultrafast light pulses. This progress enables not only the study of out-of-equilibrium dynamics but also allows for the se ...

EPFL2025

Representing and machine learning complex electronic-structure properties of materials

Austin Jacob Zadoks

The rise of high-throughput first-principles calculations of materials since the turn of the millennium has gifted the fields of physics, quantum chemistry, and materials science with a mountainous and ever-growing pile of data ready to be mined for hidden ...

EPFL2025

Alternative Plasmonic Materials for Fluorescence Enhancement

Olivier Martin, Stavros Athanasiou

Noble metals such as gold and silver have been used extensively for a range of plasmonic applications, including enhancing the fluorescence rate of a dye molecule, as evidenced by numerous experiments over the past two decades. Recently, a variety of doped ...

2024

High-order geometric integrators for the local cubic variational Gaussian wavepacket dynamics

Roya Moghaddasi Fereidani

Gaussian wavepacket dynamics has proven to be a useful semiclassical approximation for quantum simulations of high-dimensional systems with low anharmonicity. Compared to Heller's original local harmonic method, the variational Gaussian wavepacket dynamics ...

Aip Publishing2024

Electron-Beam Writing of Atomic-Scale Reconstructions at Oxide Interfaces

Duncan Thomas Lindsay Alexander, Chih-Ying Hsu

The epitaxial growth of complex oxides enables the production of high-quality films, yet substrate choice is restricted to certain symmetry and lattice parameters, thereby limiting the technological applications of epitaxial oxides. In comparison, the deve ...

American Chemical Society (ACS)2024

pH drives electron density fluctuations that enhance electric field-induced liquid flow

Sylvie Roke, Saranya Pullanchery Sankara Narayanan, Sergey Kulik, Tereza Schönfeldová

Liquid flow along a charged interface is commonly described by classical continuum theory, which represents the electric double layer by uniformly distributed point charges. The electrophoretic mobility of hydrophobic nanodroplets in water doubles in magni ...

Springer Science and Business Media LLC2024