Results 141 to 150 of about 9,488 (354)

Prospects for LED from a historical perspective

, 2010
The papers published in this volume were presented atSveriges Energiting 2010 (The Swedish Energy Parliament 2010) in Älvsjö south of Stockholm in March 16-17.Sveriges Energitingis Sweden’s largest scene for discussion of energy and climate related ...
Bladh, Mats,
core  

Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum

Advanced Materials, EarlyView.
Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño, Luis A. Pérez, Carlota Ruiz De Galarreta, Théo Rouanet, M. Isabel Alonso, Agustín Mihi   +5 more
wiley   +1 more source

Measuring and Manipulating Density of States in Two‐Dimensional Materials With Electrochemical Capacitance

Advanced Materials Interfaces, EarlyView.
We report electrochemical quantum capacitance spectroscopy as an ambient, in situ probe for defect‐mediated electronic structure at 2D material interfaces. Using monolayer MoS2, the method resolves band edges and vacancy states, tracks sulfur‐vacancy evolution during hydrogen evolution, and links interfacial density‐of‐states changes to nearly ...
Mengyu Yan, Mitchell Kaiser, Maria L. Sushko, Xiaobin Liao, Hao Tang, Chun‐Chih Tseng, Matthew Yankowitz, Ying Xia, Jihui Yang, Jun Liu   +9 more
wiley   +1 more source

Effects of light-emitting diode (LED) lighting color on human emotion, behavior, and spatial impression

, 2019
With the rapid advancement of light-emitting diode (LED) lighting technology, the use of colored LED lighting has increased tremendously. However, few studies have examined the actual effects of lighting color in interior spaces.
Lee, Heejin
core   +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

White multi-layered polymer light emitting diode by Matrix Assisted Pulsed Laser Evaporation

, 2016
The development of alternative deposition techniques of conjugated polymeric compounds is an important step towards the fabrication of low cost multi-layered organic light emitting diodes suitable for display or lighting ...
LEO, CHIARA, TUNNO, TIZIANA, MARIANO, Fabrizio, MARTINO, Maurizio, Accorsi, G., Carallo, S., CESARIA, MAURA, GIGLI, Giuseppe, GENCO, ARMANDO, MAZZEO, MARCO, Simeone, D., CARICATO, Anna Paola   +11 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

Interfacial Electronic Restructuring in MAPbBr3/rGO Hybrids Enabling Improved Charge Extraction for Efficient Photodetection

Advanced Materials Interfaces, EarlyView.
MAPbBr3/rGO hybrids exhibit interfacial electronic restructuring that enhances charge extraction in photodetectors. The incorporation of rGO modifies the surface chemical environment, enhances electron‐dominated transport, and suppresses performance degradation, resulting in higher responsivity, detectivity, and photostability than in pristine MAPbBr3 ...
Mohammed Misbah Uddin, Wisnu Tantyo Hadmojo, Zeyad M. Abdulhamid, Marwa Abd‐Ellah, Ahmed L. Abdelhady   +4 more
wiley   +1 more source

การศึกษาและวิเคราะห์คุณลักษณะทางแสงของหลอดไดโอดเปล่งแสงในระบบทางหลวง (STUDY AND ANALYSIS LUMINESCENCE CHARACTERISTICS OF LIGHT-EMITTING DIODE FOR THE HIGHWAY)

, 2015
งานวิจัยฉบับนี้นำเสนอการศึกษาและวิเคราะห์การจำลองระบบแสงสว่างเพื่อเปรียบเทียบคุณภาพแสงสว่างของโคมไฟชนิดหลอดโซเดียมความดันไอสูง (HPS) 250 วัตต์ กับ โคมไฟชนิดหลอดไดโอดเปล่งแสง (LED) 120 วัตต์ ในกรณีรูปแบบของถนนมีเกาะกลางและถนนไม่มีเกาะกลาง และทำการปรับปร ...
อยู่มาก, สัณฐิติ, เง่าพิทักษ์กุล, อรรถพล   +1 more
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