Publications related to III-N Optoelectronic Devices: Understanding the Physics of Electro-Optical Degradation

Related publications (18)

Squaraine Dyes for Organic Photomultiplication Photodetectors with 220% External Quantum Efficiency at 1240 nm

Frank Nüesch, Elodie Didier, João Pedro Ferreira Assunção

Near-infrared (NIR) light detection at wavelengths lambda > 1100 nm is essential in modern science and technology. Emerging organic semiconductors are promising for solution-processed, flexible, and large-area NIR organic photodetectors (OPDs), but only a ...

WILEY2025

Efficient Low‐Voltage Phase Shifter with Inkjet‐Printed Liquid Crystal on a Silicon on Insulator Platform

Niels Quack, Alain Yuji Takabayashi

A new electro‐optic phase shifter device architecture consisting of two lateral rail electrodes in doped silicon close to a waveguide with a liquid crystal cladding is demonstrated. Starting with a completed silicon photonics wafer of IMEC's iSiPP50G platf ...

Wiley2025

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 Conjugated Hole Transporting Materials for Efficient and Stable Perovskite Solar Cells and Modules

Keith Gregory Brooks, Paul Joseph Dyson, Zhaofu Fei, Tom Theodorus Antonius Lummen, Bin Ding, Yong Ding

The orthogonal structure of the widely used hole transporting material (HTM) 2,2 ',7,7 '-tetrakis(N, N-di-p-methoxyphenylamino)-9,9 '-spirobifluorene (Spiro-OMeTAD) imparts isotropic conductivity and excellent film-forming capability. However, inherently w ...

Wiley-V C H Verlag Gmbh2024

Buried Interface Engineering Enables Efficient and 1,960‐hour Isos‐L‐2i Stable Inverted Perovskite Solar Cells

Michael Graetzel, Shaik Mohammed Zakeeruddin, Ursula Röthlisberger, Xiong Li, Mathias Dankl, Felix Thomas Eickemeyer, Nikolaos Lempesis, Mingyang Wei, Virginia Carnevali, Lorenzo Agosta

High-performance perovskite solar cells (PSCs) typically require interfacial passivation, yet this is challenging for the buried interface, owing to the dissolution of passivation agents during the deposition of perovskites. Here, this limitation is overco ...

Wiley2024

High-Performance Perovskite Solar Cells with Zwitterion-Capped-ZnO Quantum Dots as Electron Transport Layer and NH4X (X = F, Cl, Br) Assisted Interfacial Engineering

Michael Graetzel, Shaik Mohammed Zakeeruddin, Mounir Driss Mensi, Thomas Paul Baumeler, Essa Awadh R Alharbi, Rashmi Runjhun, Felix Thomas Eickemeyer, Viktor Skorjanc, Anurag Krishna, Georgios Kakavelakis

The systematic advances in the power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs) have been driven by the developments of perovskite materials, electron transport layer (ETL) materials, and interfacial passivation between the ...

Wiley2024

Perovskite/Silicon Tandem Solar Cells Above 30% Conversion Efficiency on Submicron-Sized Textured Czochralski-Silicon Bottom Cells with Improved Hole-Transport Layers

Christophe Ballif, Kerem Artuk, Christian Michael Wolff

In perovskite/silicon tandem solar cells, the utilization of silicon heterojunction (SHJ) solar cells as bottom cells is one of the most promising concepts. Here, we present optimization strategies for the top cell processing and their integration into SHJ ...

2024

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

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

Analytical Model for Calculating Gain Pattern of Antennas Implanted in Large Host Bodies

Anja Skrivervik, Mingxiang Gao, Sujith Raman

This communication presents a method for the fast and accurate estimation of the gain pattern and maximum gain of an implanted antenna including the effect of the host body, under the assumption that the latter is electrically large. The estimation procedu ...

2024

Intrinsic thermal stability of inverted perovskite solar cells based on electrochemical deposited PEDOT

Jing Gao

Thermal stability of perovskite materials is an issue impairing the long-term operation of inverted per-ovskite solar cells (PSCs). Herein, the thermal attenuation mechanism of the MAPbI3 films that deposited on two different hole transport layers (HTL), p ...

ELSEVIER2023

High-Work-Function 2D Perovskites as Passivation Agents in Perovskite Solar Cells

Michael Graetzel, Mohammad Khaja Nazeeruddin, Paul Joseph Dyson, Ulf Anders Hagfeldt, Antoine Philippe Van Muyden, Farzaneh Fadaei Tirani, Erfan Shirzadi, Hiroyuki Kanda, Brian Irving Carlsen, Fatemeh Ansari, Felix Thomas Eickemeyer, Olivier Ouellette, Hiroaki Jinno, Shun Tian

Various approaches have been employed to passivate the defects in perovskite films used in perovskite solar cells (PSCs). However, the passivation mechanism is often unclear at a molecular level, and the reason for enhanced PSC performance often remains el ...

Amer Chemical Soc2023

Single SiGe quantum dot emission deterministically enhanced in a high-Q photonic crystal resonator

Marco Clementi

We report the resonantly enhanced radiative emission from a single SiGe quantum dot (QD), which is deterministically embedded into a bichromatic photonic crystal resonator (PhCR) at the position of its largest modal electric field by a scalable method. By ...

Optica Publishing Group2023

Ab initio study of water dissociation on a charged Pd(111) surface

Guoyuan Liu

The interactions between molecules and electrode surfaces play a key role in electrochemical processes and are a subject of extensive research, both experimental and theoretical. In this paper, we address the water dissociation reaction on a Pd(111) electr ...

2023

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

Jean-François Carlin, Nicolas Grandjean, Raphaël Butté, Ian Michael Rousseau

We present the simultaneous optical and thermal analysis of a freestanding photonic semiconductor membrane made from wurtzite III-nitride material. By linking microphotoluminescence spectroscopy with Raman thermometry and other spectroscopic techniques, we ...

Amer Physical Soc2023

Experimental and theoretical study of organic sensitizers for solid-state dye-sensitized solar cells (s-DSSCs)

Nikolaos Vlachopoulos

The effect of a series of triarylamine based D-pi-A organic dyes, namely RK1, BA504, BA741 and the simple L1 reference dye on solid-state dye sensitized solar cells (s-DSSCs) performances was studied. The solid hole transporting material (HTM) was obtained ...

ELSEVIER SCIENCE SA2022

Superhalogen Passivation for Efficient and Stable Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Hobeom Kim

Metal-halide perovskites are optoelectronic materials applied to solar cells as a light absorber due to their excellent optoelectronic properties. The power conversion efficiency of perovskite solar cells (PSCs) reaches 25.7% certified, which stands in com ...

WILEY-V C H VERLAG GMBH2022

In-situ peptization of WO3 in alkaline SnO2 colloid for stable perovskite solar cells with record fill-factor approaching the shockley-queisser limit

Mohammad Khaja Nazeeruddin

SnO2-based electron transport layers (ETLs) offer outstanding band alignment, excellent chemical and UV stability, high transmittance, high conductivity, and processability at low temperatures. However, unfortunately, the state-of-the-art SnO2 colloid prec ...

Elsevier2022