Results 131 to 140 of about 426,306 (288)

Simultaneous measurements of ozone outside and inside cabins of two B-747 airliners and a Gates Learjet business jet [PDF]

The average amount of ozone measured in the cabins of two B-747 airliners varied from 40 percent to 80 percent of the atmospheric concentrations without special ozone destruction systems.
Briel, D., Perkins, P. J.
core   +1 more source

Graphene‐Based Wearable Textile Triboelectric Nanogenerators and Biomechanical Sensors

Advanced Materials Technologies, EarlyView.
This study presents a wearable textile‐based triboelectric nanogenerator (T‐TENG) using sprayed graphene enhanced with a PVA adhesion layer. The graphene‐based electrode demonstrates high electrical conductivity and robustness to multiple bends. The fabricated T‐TENG provides stable and efficient output, with strong responsiveness to biomotion.
Hongyang Dang, Benji Fenech‐Salerno, Antonio Alessio Leonardi, Federico La Barbera, Felice Torrisi   +4 more
wiley   +1 more source

Reverse Intersystem Crossing and Exciton Harvesting: A Pathway to Low Threshold in Multi‐Resonant TADF Electrically Pumped Organic Semiconductor Lasers

Advanced Optical Materials, EarlyView.
Electrically pumped organic lasing thresholds are lowered by mitigating triplet accumulation through a tailored host‐guest system. Integrating the multi‐resonant TADF emitter DABNA‐2 into a triplet‐scavenging BSBCz host suppresses singlet‐triplet annihilation.
Adam Bickerdike, Mahdiyar Nouri‐Rezaie, Takuji Hatakeyama, Chris Groves, Chihaya Adachi, Mujeeb U. Chaudhry, Roderick C. I. MacKenzie   +6 more
wiley   +1 more source

Ozone profile observations in Houston, Texas (1994 - 2010) from aircraft, balloons, and satellites [PDF]

, 2011
Houston, Texas has long been an urban area plagued with high levels of surface ozone, particularly in spring and late summer. The combination of a large commuter population and one of the largest concentrations of petrochemical plants in the world ...
Boxe, Christopher, Cammas, Jean-Pierre, Haman, Christine, Hersey, Scott, Johnson, Bryan, Lefer, Barry, Morris, Gary A., Oltmans, Samuel, Rappenglueck, Bernhard, Thouret, Valerie   +9 more
core   +2 more sources

Highly Efficient Pure‐Blue Single‐Layer Organic Light‐Emitting Diodes Without High‐Triplet‐Energy Auxiliary Materials

Advanced Optical Materials, EarlyView.
Blue organic light‐emitting diodes (OLEDs) comprising triplet‐harvesting emitters require the use of high‐triplet‐energy hosts and blocking layers to confine the triplet excitons to the emitter. Here, we present efficient single‐layer blue hyperfluorescent OLEDs comprising solely of a matrix‐free emissive layer between two charge‐injecting electrodes ...
Xiao Tan, Manish Kumar, Oskar Sachnik, Rishabh Saxena, Paul W. M. Blom, Gert‐Jan A. H. Wetzelaer   +5 more
wiley   +1 more source

ZnCl2 Post‐Treatment Enables High‐Efficiency Violet CsPbCl3 Quantum Dot LEDs

Advanced Optical Materials, EarlyView.
Schematic illustration of ZnCl2 post‐treatment–induced doping in CsPbCl3 quantum dots (QDs). ABSTRACT Perovskite light‐emitting diodes (LEDs) have achieved external quantum efficiencies (EQEs) above 20% in the red, green, and blue spectral regions, yet their efficiency rapidly declines as the bandgap widens for shorter‐wavelength emission.
Po‐Hsien Lai, Chien‐Cheng Li, Tien‐Lin Wu, Chih‐Shan Tan   +3 more
wiley   +1 more source

Polar ozone [PDF]

The observation and interpretation of a large, unexpected ozone depletion over Antarctica has changed the international scientific view of stratospheric chemistry.
Grose, W. L., Jones, R. L., Mccormick, M. P., Molina, Mario J., Oneill, A., Plumb, R. A., Poole, L. R., Pope, V., Shine, K. P., Solomon, S.   +9 more
core   +1 more source

Experimental Evidence of Free Carrier Generation in 2D Hybrid Organic–Inorganic Perovskites

Advanced Optical Materials, EarlyView.
ABSTRACT Despite the significant potential of 2D hybrid organic–inorganic perovskites (2DHOIPs) for high‐efficiency optoelectronics application‐comparable to their 3D counterparts, the fundamental carrier photogeneration remains unclear. In contrast to conventional ultrafast optical property characterization, we use ultrafast photocurrent spectroscopy ...
Tuhin Ghosh, Pan Adhikari, Yao Gao, Apparao M. Rao, Dawen Li, Haimei Zheng, Ying Shi, Letian Dou, Jianbo Gao   +8 more
wiley   +1 more source

Empirical studies of upper atmospheric species [PDF]

The first month of spin-scan ozone imaging (SOI) data (October 1981) was processed and compared with total ozone mapping spectrometer and ground based data. Short term variations in the ozone field have been revealed using animated sequences of SOI data.
Nicholson, J., Pitts, M., Young, D.
core   +1 more source

Optically Selective Photomask Based on Field‐Induced Periodic Defect Arrays in Ferroelectric Nematics

Advanced Optical Materials, EarlyView.
Field‐induced periodic defect patterns in the ferroelectric nematic liquid crystal phase act as optically selective photomasks. Created in the liquid crystal cells with bare electrodes, their periodicity is controlled by the applied frequency and cell gap. When used as photomasks, these patterns modulate transmitted light, whose spatial characteristics
Rajalaxmi Sahoo, Mamatha Nagaraj, Thomas Raistrick, Gordon D. Love, Helen F. Gleeson   +4 more
wiley   +1 more source