Publications related to Dataset of "Exciton and Carrier Dynamics in Two-Dimensional Perovskites"

Related publications (12)

Covalent Organic Framework-Enhanced Metal Halide Perovskites for Selective and Sensitive Gas Sensing

Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Shun Tian

Solution-processed lead-free halide perovskite gas sensors possess low gas detection limits, offering promising alternatives to traditional metal oxide chemiresistors. However, halide perovskite chemiresistors often suffer from poor selectivity and durabil ...

2024

Optoelectronics based on the spin-valley physics of 2D materials

Juan Francisco Gonzalez Marin

Two-dimensional (2D) materials are atomically thin crystals with exceptional mechanical, electrical and optical properties. Their unique characteristics originating from quantum confinement in the vertical dimension have attracted a strong interest for sci ...

EPFL2022

Field-induced ultrafast modulation of Rashba coupling at room temperature in ferroelectric alpha-GeTe(111)

Jan Hugo Dil

Rashba materials have appeared as an ideal playground for spin-to-charge conversion in prototype spintronics devices. Among them, alpha-GeTe(111) is a non-centrosymmetric ferroelectric semiconductor for which a strong spin-orbit interaction gives rise to g ...

Nature Portfolio2022

Ultrafast Momentum-Resolved Free-Electron Probing of Optically Pumped Plasmon Thermal Dynamics

Fabrizio Carbone

Current advances in ultrafast electron microscopy make it possible to combine optical pumping of a nanostructure and electron beam probing with sub-Angstrom and femtosecond spatiotemporal resolution. We present a theory predicting that this technique can r ...

AMER CHEMICAL SOC2021

A Facile Preparative Route of Nanoscale Perovskites over Mesoporous Metal Oxide Films and Their Applications to Photosensitizers and Light Emitters

Mohammad Khaja Nazeeruddin, Emad Oveisi, Giulia Grancini, Sanghyun Paek, Kyung Taek Cho, Iwan Zimmermann, Yonghui Lee, Aron Joel Huckaba, Valentin Ianis Emmanuel Queloz, So-Min Yoo

By two‐step sequential Pb2+ adsorption and reaction with methylammonium‐iodide (MAI) or ‐bromide (MABr) at a low concentration level of 0.06–0.10 m over mesoporous TiO2 or ZrO2 film, a well‐defined nanoscale CH3NH3PbI3 (MAPbI3) photosensitizer or CH3NH3PbB ...

2018

CsPbBr3 QD/AlOx inorganic nanocomposites with exceptional stability in water, light and heat

Raffaella Buonsanti, Emad Oveisi, Duncan Thomas Lindsay Alexander, Anna Loiudice, Seryio Saris

Herein, the assembly of CsPbBr3 QD/AlOx inorganic nanocomposites, by using atomic layer deposition (ALD) for the growth of the amorphous alumina matrix (AlOx), is described as a novel protection scheme for such QDs. The nucleation and growth of AlOx on the ...

2017

Tuning the response of non-allowed Raman modes in GaAs nanowires

Anna Fontcuberta i Morral, Gözde Tütüncüoglu, Federico Matteini, Esther Alarcon Llado, Emanuele Uccelli, Francesca Amaduzzi

We report on the use of photonic resonances in Raman spectroscopy on single nanowires for the enhancement of forbidden modes and the study of the interaction of phonons with free-carriers. This is achieved by suspending nanowire over a trench and detecting ...

Iop Publishing Ltd2016

Site-controlled InGaAs/GaAs pyramidal quantum dots grown by MOVPE on patterned substrates using triethylgallium

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Pascal Gallo, Alexey Lyasota, Clément William Tendaï Jarlov, Bruno Marie Dominique Rigal

The fabrication and characterization of site-controlled InGaAs/GaAs quantum dots (QDs) made by MOVPE using triethylgallium (TEGa) on patterned {111}B GaAs substrates are reported. Results are compared to more traditional pyramidal QD structures grown emplo ...

Elsevier Science Bv2015

Influence of a nonradiative reservoir on polariton spin multistability

Benoît Marie Joseph Deveaud, François Morier-Genoud, Marcia Portella Oberli, Taofiq Paraïso, Roland Cerna

In this work, we study the influence of the excitation conditions on power-dependent spin switching and spin multistability of exciton polaritons in planar semiconductor microcavities. We obtain experimental evidence for the influence of a reservoir of non ...

American Physical Society2013

Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH3NH3PbI3

Michael Graetzel

Low-temperature solution-processed photovoltaics suffer from low efficiencies because of poor exciton or electron-hole diffusion lengths (typically about 10 nanometers). Recent reports of highly efficient CH3NH3PbI3-based solar cells in a broad range of co ...

American Association for the Advancement of Science2013

Large mode splitting and lasing in optimally coupled photonic-crystal microcavities

Elyahou Kapon, Alok Rudra, Benjamin Dwir, Kirill Atlasov

Coupling of L-type photonic-crystal (PhC) cavities in a geometry that follows inherent cavity field distribution is exploited for demonstrating large mode splitting of up to similar to 10-20 nm (similar to 15-30 meV) near 1 mu m wavelength. This is much la ...

Optical Society of America2011

Optical properties of In(Ga)As/GaAs quantum dot-based devices emitting at 1.3[mu]m

Alexander Markus

Self-assembled quantum-dots (QDs) represent a distributed ensemble of zero dimensional structures with a near-singular density of states. Implemented as the active medium in a diode laser their unique properties lead to improved and often novel characteris ...

EPFL2004