Results 101 to 110 of about 30,637 (263)

Ambient Light‐Activatable Luminescent Particle‐Embedded Conformal Patch for Photochemical Tissue Bonding and Photobiomodulated Healing

Advanced Materials, EarlyView.
We report a wearable photonic patch integrating room light‐ and sunlight‐activatable luminescent particles (RSLPs) for both photochemical tissue bonding and photobiomodulation. RSLPs harvest ambient light and emit red luminescence to drive chlorin e6–mediated collagen crosslinking.
Kyungjoo Jo, Seong‐Jong Kim, Seung Oh Jung, Kyeongtaek Lee, Mungu Kim, Kwanghyeon Park, Yewon Seo, Boram Park, Dongchul Jo, Jongshin Kim, Jin Huh, Hyemin Kim, Sei Kwang Hahn   +12 more
wiley   +1 more source

Energy Band Alignment and Electro‐Optical Behavior of Nearly Unstrained Monolayer MoS2 Heterostructures With GaN

Advanced Materials Interfaces, EarlyView.
Large size (∼100 µm) monolayer MoS2 grown by LPI‐CVD on n‐GaN exhibit a high n‐type doping, very low strain, and a type‐I band alignment at MoS2/GaN interface. Photocurrent measurements under illumination with photon energies from ∼2 to ∼5 eV show superior electro‐optical performances of these MoS2/n‐GaN heterojunctions as compared to Ni/n‐GaN devices ...
Salvatore Ethan Panasci, Emanuela Schilirò, Giuseppe Greco, Patrick Fiorenza, Fabrizio Roccaforte, Fiorenza Esposito, Igor Píš, Federica Bondino, Antonino Madonia, Marco Cannas, Simonpietro Agnello, Luca Seravalli, Filippo Giannazzo   +12 more
wiley   +1 more source

Space charges and negative capacitance effect in organic light-emitting diodes by transient current response analysis

, 2017
Space charge capacitance and the physical mechanism of negative capacitance in organic light-emitting diodes (OLEDs) by transient current response analysis are investigated for the first time.
Yang Zhang, Yiyang Li, Yiping Zeng, Min Guan, Xingfang Liu, Litao Niu   +5 more
core   +1 more source

Magnetic‐Field Modulation of Charge Transport in Non‐Fullerene Semiconductors for Enhanced Hydrogen Evolution

Advanced Materials Interfaces, EarlyView.
ABSTRACT This study demonstrates that weak magnetic fields (16–40 mT) increase the efficiency of the hydrogen evolution reaction (HER) in electrocatalysts based on non‐fullerene acceptor (NFA) derivatives IT‐4Cl and Y6. Electrochemical measurements reveal that the application of the magnetic field reduces the onset potential and increases the current ...
João Paulo Araujo Souza, Marlus Koehler, John Fredy Ricardo Marroquin, Jorlandio Francisco Felix, Thanh‐Tuân Bui, Paulo Eduardo Narcizo de Souza, Sebastião William da Silva, Luana Wouk   +7 more
wiley   +1 more source

Light-emission from conjugated dendrimers and polymers [PDF]

, 1999
This thesis reports the photophysical and electroluminescence studies undertaken on two types of material: polymeric and dendritic. The dendritic architecture is a recent concept adopted to develop new materials for light-emitting diodes.
Halim, Mounir, Halim, M.
core  

Efficient Light-Emitting Diodes Based on In-Situ Self-Assembled Perovskite Nanocrystals

, 2018
We introduce a simple and low-cost approach -drop-coating method -for preparation of in-situ self-assembled perovskite nanocrystals for efficient light-emitting diodes.
Wang, Heyong,, Yu, Hongling,, Liu, Xiaoke,, Gao, Feng,   +3 more
core   +1 more source

An Ultra‐Reliable and Highly Sensitive Flexible Piezoelectric Pressure Sensor Based on Vertically Aligned Gallium Nitride Microrod Arrays on Graphene

Advanced Materials Interfaces, EarlyView.
A flexible and highly reliable piezoelectric pressure sensor based on GaN p–n homojunction microrod arrays on graphene is demonstrated. The sensor exhibits high sensitivity, rapid response, excellent cyclic durability, and stable performance after thermal aging and PBS immersion, highlighting its potential for harsh‐environment and biomedical pressure ...
Asad Ali, Han Ik Kim, Seokje Lee, Imhwan Kim, Hongseok Oh, Gyu‐Chul Yi   +5 more
wiley   +1 more source

Using Equalizers to Increase Data Rates in Organic Photonic Devices for Visible Light Communications Systems

, 2014
This thesis proposes to marry two separate technologies together. The first technology is that of visible light communications (VLC), and the second is small molecule and polymer organic photonic devices.
Haigh, Paul
core  

Advances in Halide Perovskites for Photon Radiation Detectors

Advanced Materials Technologies, EarlyView.
This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang, Jieqi Wang, Xiaojun Cui, Carsten Ronning   +3 more
wiley   +1 more source

ITO-free top emitting organic light emitting diodes with enhanced light out-coupling

, 2014
Bottom emitting organic light emitting diodes (OLEDs) can suffer from lower external quantum efficiencies (EQE) due to inefficient out-coupling of the generated light.
Ullah, Mujeeb, Namdas, E. B., Burn, Paul L., Yambem, Soniya D., Namdas, Ebinazar B., Yambem, S. D., Burn, P. L., Tandy, K., Tandy, Kristen, Ullah, M.   +9 more
core   +1 more source