Institution
Johannes Kepler University of Linz
Education•Linz, Oberösterreich, Austria•
About: Johannes Kepler University of Linz is a education organization based out in Linz, Oberösterreich, Austria. It is known for research contribution in the topics: Thin film & Quantum dot. The organization has 6605 authors who have published 19243 publications receiving 385667 citations.
Papers published on a yearly basis
Papers
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TL;DR: Highly flexible bismuth Hall sensors on polymeric foils are fabricated, and the key optimization steps that are required to boost their sensitivity to the bulk value are identified.
Abstract: Highly flexible bismuth Hall sensors on polymeric foils are fabricated, and the key optimization steps that are required to boost their sensitivity to the bulk value are identified. The sensor can be bent around the wrist or positioned on the finger to realize an interactive pointing device for wearable electronics. Furthermore, this technology is of great interest for the rapidly developing market of -eMobility, for optimization of eMotors and magnetic bearings.
192 citations
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TL;DR: By combining a series of growth experiments using metal−organic vapor phase epitaxy, as well as detailed in situ surface imaging and spectroscopy, this work gains deeper insight into nucleation and growth of self-seeded III−V nanowires.
Abstract: Group III−V nanowires offer the exciting possibility of epitaxial growth on a wide variety of substrates, most importantly silicon. To ensure compatibility with Si technology, catalyst-free growth schemes are of particular relevance, to avoid impurities from the catalysts. While this type of growth is well-documented and some aspects are described, no detailed understanding of the nucleation and the growth mechanism has been developed. By combining a series of growth experiments using metal−organic vapor phase epitaxy, as well as detailed in situ surface imaging and spectroscopy, we gain deeper insight into nucleation and growth of self-seeded III−V nanowires. By this mechanism most work available in literature concerning this field can be described.
191 citations
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TL;DR: In this article, estimates of the shadow economy in 145 developing, transition, developed OECD countries, South Pacific islands and still communist countries are presented using the DYMIMIC approach.
Abstract: Using the DYMIMIC approach, estimates of the shadow economy in 145 developing, transition, developed OECD countries, South Pacific islands and still communist countries are presented. The average size of the shadow economy (in percent of official GDP) over 2002/2003 in developing countries is 39.1%, in transition countries 40.1%, in OECD countries 16.3%, South Pacific islands 33.4% and 4 remaining Communist countries 21.8%. An increasing burden of taxation, high unemployment and low official GDP growth are the driving forces of the shadow economy.
191 citations
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TL;DR: This progress report aims to logically bridge together the hereto independent research directions on indigo, isoindigo, and other materials inspired by historical dye chemistry: a field which was the root of the development of modern chemistry in the first place.
Abstract: Indigo and its derivatives are dyes and pigments with a long and distinguished history in organic chemistry. Recently, applications of this 'old' structure as a functional organic building block for organic electronics applications have renewed interest in these molecules and their remarkable chemical and physical properties. Natural-origin indigos have been processed in fully bio-compatible field effect transistors, operating with ambipolar mobilities up to 0.5 cm(2) /Vs and air-stability. The synthetic derivative isoindigo has emerged as one of the most successful building-blocks for semiconducting polymers for plastic solar cells with efficiencies > 5%. Another isomer of indigo, epindolidione, has also been shown to be one of the best reported organic transistor materials in terms of mobility (∼2 cm(2) /Vs) and stability. This progress report aims to review very recent applications of indigoids in organic electronics, but especially to logically bridge together the hereto independent research directions on indigo, isoindigo, and other materials inspired by historical dye chemistry: a field which was the root of the development of modern chemistry in the first place.
191 citations
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TL;DR: It is shown that the exciton binding energies as well as nonradiative quenching rates differ for different Er centers, and under optimum annealing conditions, the isolated interstitial Er has the highest photoluminescence yield at temperatures above 100 K.
Abstract: The intra-4f transition close to 1.54 \ensuremath{\mu}m of Er implanted into Si shows rich fine structure due to the crystal field of different defect types. Making use of the influence of implantation and annealing parameters, additional doping, temperature, and excitation power, we identify groups of lines belonging to different Er-related, optically active defects: the isolated interstitial Er, axial symmetry Er complexes with oxygen, and Er complex centers containing residual radiation defects. We show that the exciton binding energies as well as nonradiative quenching rates differ for different Er centers. Under optimum annealing conditions, the isolated interstitial Er has the highest photoluminescence yield at temperatures above 100 K. \textcopyright{} 1996 The American Physical Society.
190 citations
Authors
Showing all 6718 results
Name | H-index | Papers | Citations |
---|---|---|---|
Wolfgang Wagner | 156 | 2342 | 123391 |
A. Paul Alivisatos | 146 | 470 | 101741 |
Klaus-Robert Müller | 129 | 764 | 79391 |
Christoph J. Brabec | 120 | 896 | 68188 |
Andreas Heinz | 108 | 1078 | 45002 |
Niyazi Serdar Sariciftci | 99 | 591 | 54055 |
Lars Samuelson | 96 | 850 | 36931 |
Peter J. Oefner | 90 | 348 | 30729 |
Dmitri V. Talapin | 90 | 303 | 39572 |
Tomás Torres | 88 | 625 | 28223 |
Ramesh Raskar | 86 | 670 | 30675 |
Siegfried Bauer | 84 | 422 | 26759 |
Alexander Eychmüller | 82 | 444 | 23688 |
Friedrich Schneider | 82 | 554 | 27383 |
Maksym V. Kovalenko | 81 | 360 | 34805 |