K
Karel Vanheusden
Researcher at Cabot Corporation
Publications - 89
Citations - 9537
Karel Vanheusden is an academic researcher from Cabot Corporation. The author has contributed to research in topics: Nanoparticle & Oxide. The author has an hindex of 31, co-authored 89 publications receiving 9289 citations. Previous affiliations of Karel Vanheusden include Sandia National Laboratories & University of New Mexico.
Papers
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Journal ArticleDOI
Mechanisms behind green photoluminescence in ZnO phosphor powders
Karel Vanheusden,William L. Warren,Carleton H. Seager,David R. Tallant,J. A. Voigt,Bruce E. Gnade +5 more
TL;DR: In this article, the authors explore the interrelationships between the green 510 nm emission, the free-carrier concentration, and the paramagnetic oxygen vacancy density in commercial ZnO phosphors by combining photoluminescence, optical absorption, and electron paramagnetic resonance spectroscopies.
Journal ArticleDOI
Correlation between photoluminescence and oxygen vacancies in ZnO phosphors
TL;DR: By combining electron paramagnetic resonance (EPR), optical absorption, and photoluminescence (PL) spectroscopy, a strong correlation is observed between the green 510 nm emission, the free-carrier concentration, and the density of singly ionized oxygen vacancies in commercial ZnO phosphor powders as mentioned in this paper.
Journal ArticleDOI
Oxygen Vacancy Motion in Perovskite Oxides
TL;DR: Using electron paramagnetic resonance, the motion of oxygen vacancies within the oxygen octahedron in perovskite BaTiO{sub 3} is observed via the alignment of oxygen vacancy-related defect dipoles induced by bias/heat combinations.
Patent
Low viscosity precursor compositions and methods for the deposition of conductive electronic features
Toivo T. Kodas,Mark J. Hampden-Smith,Karel Vanheusden,Hugh Denham,Aaron D. Stump,Allen B. Schult,Paolina Atanassova,Klaus Kunze +7 more
TL;DR: In this paper, a precursor composition for the deposition and formation of an electrical feature such as a conductive feature was proposed, which advantageously has a low viscosity enabling deposition using direct write tools.
Patent
Multi-component particles comprising inorganic nanoparticles distributed in an organic matrix and processes for making and using same
Toivo T. Kodas,Mark J. Hampden-Smith,Scott Haubrich,Heng Yu,Ned Jay Hardman,Ralph E. Kornbrekke,Aaron D. Stump,Klaus Kunze,David Dericotte,Karel Vanheusden +9 more
TL;DR: In this paper, a flowing aerosol is generated that includes droplets of a precursor medium dispersed in a gas phase, and at least a portion of the liquid vehicle is removed from the droplets under conditions effective to convert the precursor to the nanoparticles or the matrix.