Publication
Ion and Trap Induced Dynamic Phenomena in Salt Semiconductor Devices
Related publications (41)
Drift-Diffusion Simulations of Charge Transport and Trap Dynamics in Organic Semiconductor Materials
Polymeric semiconductors have gained significant attention in the field of organic electronics due to their unique properties and potential applications. Through their ability to transport charge carriers and to absorb or emit light, they have attracted mu ...
EPFL2023The nanoscale impact of individual nonradiative point defects on InGaN/GaN quantum wells
Thomas Fjord Kjaersgaard Weatherley
Today's world depends on optoelectronic devices: light-emitting diodes illuminate our houses and backlight the displays on our gadgets, while laser diodes underpin fibre-optic communication. Such optoelectronic devices rely on crystalline semiconductor het ...
EPFL2023Versatile Electroluminescence Color-Tuning Strategy of an Efficient Light-Emitting Electrochemical Cell (LEC) by an Ionic Additive
Mohammad Khaja Nazeeruddin, Narges Yaghoobi Nia
The color-tuning strategies of solid-state light-emitting devices (ss-LEDs) are mainly focused on engineering molecular structures. In this paper, for the first time, we developed a facile strategy for tuning the electroluminescence (EL) color from orange ...
AMER CHEMICAL SOC2022On the Response Speed of Narrowband Organic Optical Upconversion Devices
Frank Nüesch, Roland Hany, Surendra Babu Anantharaman, Matthias Diethelm, Wei-Hsu Hu
Organic upconversion devices (OUCs) consist of an organic infrared photodetector and an organic visible light-emitting diode (OLED), connected in series. OUCs convert photons from the infrared to the visible and are of use in applications such as process c ...
WILEY-V C H VERLAG GMBH2022Electron Trap Dynamics in Polymer Light-Emitting Diodes
Frank Nüesch, Roland Hany, Michael Bauer, Matthias Diethelm, Wei-Hsu Hu
Semiconducting polymers are being studied intensively for optoelectronic device applications, including solution-processed light-emitting diodes (PLEDs). Charge traps in polymers limit the charge transport and thus the PLED efficiency. It is firmly establi ...
WILEY-V C H VERLAG GMBH2022Synthesis of NIR-Absorbing Squaraine Dyes and their Use in Organic Upconversion Devices
Squaraines are organic dyes showing the advantages of a simple synthesis, high absorption coefficients and tunable bandgaps from the visible to the near-infrared (NIR) region. Their molecular structure is based on a polymethine chain and a donor-acceptor-d ...
EPFL2021Electrical Excitation of Long-Range Surface Plasmons in PC/OLED Structure with Two Metal Nanolayers
A current-driven source of long-range surface plasmons (LRSPs) on a duplex metal nanolayer is reported. Electrical excitation of LRSPs was experimentally observed in a planar structure, where an organic light-emitting film was sandwiched between two metal ...
SHANGHAI JIAO TONG UNIV PRESS2020III-nitride photonic cavities
Nicolas Grandjean, Raphaël Butté
Owing to their wide direct bandgap tenability, III-nitride (III-N) compound semiconductors have been proven instrumental in the development of blue light-emitting diodes that led to the so-called solid-state lighting revolution and blue laser diodes that a ...
WALTER DE GRUYTER GMBH2020Taking a snapshot of the triplet excited state of an OLED organometallic luminophore using X-rays
Andrea Cannizzo, Giulia Fulvia Mancini, Camila Bacellar Cases Da Silveira, Martin Beck, Victoria Kabanova, Samuel Menzi
OLED technology beyond small or expensive devices requires light-emitters, luminophores, based on earth-abundant elements. Understanding and experimental verification of charge transfer in luminophores are needed for this development. An organometallic mul ...
NATURE PUBLISHING GROUP2020Cathodoluminescent screen imaging system for seeded blob detection in toroidal plasma experiment
Ambrogio Fasoli, Ivo Furno, Paolo Ricci, Paul Bowen, Marcelo Baquero Ruiz, Carlos Morais, Fabian Manke
We designed and built a diagnostic based on a cathodoluminescent screen for the detection of turbulent plasma structures with high spatial resolution. The screen is coated with a low threshold energy cathodoluminescent powder that emits light when exposed ...
2020