1,721,694 research outputs found
ORAL CONTRIBUTION - “Three-dimensional anisotropic electronic properties of solution-grown semiconducting organic single crystals” - PRESENTING AUTHOR
No full textORAL CONTRIBUTION - “Solution Growth of Organic Single Crystals of 4-hydroxycyanobenzene (4HCB) Suitable for Investigations on the Three-dimensional Transport Anisotropy in Organic Semiconducting Single Crystals” - PRESENTING AUTHOR
No full textORAL CONTRIBUTION - “Three-dimensional Anisotropic Density of States (DOS) and Carrier Mobilities in Solution Grown Organic Single Crystals Measured by Space-Charge Limited Current (SCLC)” - PRESENTING AUTHOR
No full textEvaluation of diffusion length at different excess carrier concentrations
No full textThe charge collection technique of scanning electron microscopy is widely used to measure the minority carrier diffusion length L in semiconductors. In order to obtain L, the continuity equation for the excess carrier concentration Δp must be solved with suitable boundary conditions. L is supposed to be constant as a function of the excess carrier concentration. This paper investigates the diffusion length in Si and GaAs in low and high injection regimes, where L is independent of the injection conditions. The results obtained are discussed on the basis of the Shockley-Read-Hall recombination model (W. Shockley and W. Read, Phys. Rev., 87 (1952) 835). The evaluation of the injection dose is also discussed. Indeed, this is very different for the semiconductors under investigation, due to their different electronic properties. © 1994
Design of shunt capacitor circuits for power factor compensation in electrical systems supplying nonlinear loads: a probabilistic approach
No full textAn optimization criterion is presented which allows proper calculation of reactive power steps in a power factor compensation installation consisting of capacitors and/or filters. Optimization minimizes power losses on supply transformer and cables. The criterion is based on mean value estimation of load reactive power, which is enabled by sampling measurements performed on the examined electrical plant, as well as by probabilistic processing of data. Even the aspect of harmonic pollution is considered in the optimization process, determining the choice between filters and capacitors. © 1998 IEEE
Dielectric properties and partial discharge endurance of thermally aged nano-structured polyimide
No full textPolyimide (PI) is an important insulation material due to its high thermal, chemical and electrical resistance along with good mechanical strength [1]. It has been widely used in equipment such as high voltage motors, wind turbine and aerospace craft [2]
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
ORAL CONTRIBUTION - “New clues for understanding the electronic transport in organic semiconductors: anisotropic polaronic signatures in single crystals detected by synchrotron-based IR spectroscopy” - PRESENTING AUTHOR
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