Results 141 to 150 of about 4,205,989 (306)

Light-emitting-diode-induced fluorescence detector for capillary electrophoresis using optical fiber with spherical end

, 2003
A simple fluorescence detector for capillary electrophoresis (CE) using a blue light-emitting-diode (LED) as excitation source is constructed and evaluated.
Guan, YF, Yang, BC
core  

Determining Composition–Structure–Property Relationships in Quaternary Perovskitoids Through Megalibraries

Advanced Materials, EarlyView.
A method to synthesize 1 million compositionally distinct Cs3Bi2‐𝛼Sb𝛼Br9−xIx across a quaternary compositional space on a single glass substrate is presented. High‐throughput characterization is then used to map the interplay of composition, structure, and bandgap.
Olivier J. G. L. Chevalier, Sachin P. Kulkarni, Jarod Beights, Yichen Li, Sergej Kudruk, Allen X. Guo, Jun Li, Koray Aydin, Chris Wolverton, Chad A. Mirkin   +9 more
wiley   +1 more source

Light‐Controlled Localized Delamination and Blistering of Azobenzene‐Containing Polymer Thin Films in an Aqueous Environment

Advanced Materials Interfaces, EarlyView.
When exposed to light of a defined wavelength, the photoisomerization of azobenzene chromophores leads to polymer reorientation, generating stresses that result in solvent‐facilitated localized delamination of the film from the substrate. Additionally, blisters that form spontaneously when exposed to an aqueous environment can be manipulated via ...
James Robert Benson, Jonas Strobelt, Nino Lomadze, Svetlana Santer, Stephan Eickelmann   +4 more
wiley   +1 more source

Synthesis and charaterisation of phosphorescent copper (I) complexes for light emitting devices [PDF]

, 2013
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Over the last decade, many significant developments have been made to improve the active materials in a new generation of organic light emitting devices ...
Andrés-Tomé, María Inmaculada
core   +1 more source

High Energy Photon Induced Defect Engineering in Ultra‐Thin Indium Oxide Transistors for BEOL‐Compatible Logic Circuits

Advanced Materials Interfaces, EarlyView.
Xenon flash lamp annealing modulates oxygen‐vacancy states in 1‐nm‐thick ALD In2O3 transistors within a single 139 µs pulse. The photon‐induced defect engineering shifts the threshold voltage, improves bias‐stress stability, and narrows device‐to‐device variation across 64 devices. Combining pristine and treated transistors yields NMOS inverters with a
Sung Jin Park, SeYoon Jeon, In Ho Kim, Sang Jik Kwon, Min‐Kyu Park, Eou‐Sik Cho   +5 more
wiley   +1 more source

Oxygen‐Controlled Structural and Defect Engineering of Magnetron‐Sputtered ZnO Thin Films for Photosensing

Advanced Materials Interfaces, EarlyView.
Zinc oxide thin films are engineered by controlling oxygen flow and nominal partial pressure during growth to tune atomic‐scale defects and crystallographic texture that limit device performance. By balancing competing defects, the films achieve improved preferential c‐axis orientation and enhanced ultraviolet photoresponse.
Julfikar Ali Sarkar, Rupa Jeena, Mohammed Aslam   +2 more
wiley   +1 more source

LIGHT-EMITTING DIODE (LED) AND LASER GAS ANALYSERS FOR IMPROVING EFFICIENCY OF FUEL BURNING IN HEAT POWER ENGINEERING

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2005
The paper contains estimation of threshold sensitivity of correlation measuring methods in light-emitting diode and laser devices for continuous control of boiler smoke gas composition. Proposals are given to eliminate influence of dissipation losses and
V. A. Firago, S. N. Drozd, V. Voujtsik, M. M. Kougejko, I. S. Manak   +4 more
doaj  

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

Low threshold voltage light-emitting diode in silicon-based standard CMOS technology

, 2011
Low-voltage silicon (Si)-based light-emitting diode (LED) is designed based on the former research of LED in Si-based standard complementary metal oxide semiconductor (CMOS) technology.
Dong, Z (reprint author), Chinese Acad Sci, State Key Lab Integrated Optoelect Inst Semicond, Beijing 100083, Peoples R China. dongzan@semi.ac.cn, Chen HD, Dong Z, Zhang X, Wang W, Huang BJ, Guan N   +6 more
core  

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source