Scherf
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Scherf
Johann Christian Andreas Scherf was born 31 October 1818 in Lobenstein, Thuringia, Germany. His parents were Johann Christoph Heinrich Scherf and Susanne Magdelena Horn. He married Ernestina Duenkel, daughter of Johann Kaspar Duenkel and Dorothea Elisabeth Johanne Frankel, in 1840. They had six known children. They emigrated in 1848 and settled in Wisconsin. Ancestors, descendants and relatives lived mainly in Germany, Wisconsin and Iowa.
Organic Light-Emitting Devices
Author: Joseph Shinar
language: en
Publisher: Springer Science & Business Media
Release Date: 2004
Although it has long been possible to make organic materials emit light, it has only recently become possible to do so at the level and with the efficiency and control necessary to make the materials a useful basis for illumination or displays. The early electroluminescent devices provided reasonably bright light, but required high operating voltages, produced only a narrow range of colors, and had severely limited lifetimes. Recent developments, however, make it possible to manufacture organic light-emitting devices that are thin, bright, efficient, and stable and that produce a broad range of colors. This book surveys the current status of the field. It begins with an overview of the physics and chemistry of organic light emitting devices by J. Shinar and V. Savvateev. Subsequenbt chapters discuss the design of molecular materials for high performance devices (C. Adachi and T. Tsutsui) and chemical degradation and physical aging (K. Higginson, D. L. Thomsen, B. Yang, and F. Papadimitrakopoulos). A. Dodabalapur describes microcavity OLEDs, and Y. Shi, J. Liu, and Y. Yang discuss polymer morphology and device performance. Various aspects of devices based on polyparaphenylene vinylenes are discussed in chapters by N.C. Greenham and R.H. Friend and by H. Chayet, V. Savvateeyv, D. Davidov and R. Neumann. Chapters by S. Tasch, W. Graupner, and G. Leising and by Y. Z. Wang, D. Gebler, and A. J. Epstein describe OLEDs based on poly(paraphenylene) and poly(pyridine), respectively. The book concludes with a chapter on polyfluorene-based devices, which show great promise for producing light in all colors from blue to red.
Polyfluorenes
Author: Ullrich Scherf
language: en
Publisher: Springer Science & Business Media
Release Date: 2008-07-29
With this collection of short review papers we would like to present a broad overview of research on poly?uorenes and related heteroanalogues over the last two decades. The collection begins with papers on the synthesis of po- ?uorenesandrelatedpolyheteroarenes, thenreportsphotophysicalproperties of this class of conjugated polymers both at the ensemble and the single chain level, continues with a discussion of the rich solid state structures of poly?uorenes, and ?nally switches to device applications (e.g. in OLEDs). In addition, two chapters are devoted to de?ned oligo?uorenesas lowmolecular weight model systems forpoly?uorenes and also to degradation studies. We feel that this up-to-date collection will be very helpful to all polymer chemists and physicists, and will also aid graduate students interested in this fascinating and still growing area of research, since such a compact overview is only now available. All articles are presented by leading scientists in their ?elds, insuring state-of-the-art coverage of all relevant aspects. Together with the body of references this volume is meant to assist researchers in the daily lab routine. Moreover, Advances in Polymer Science, as an established series of high quality review papers, represents a very appropriate platform for our project.Wehopethatthisshortcollectionwillbeofgreatvaluebothforbeg- ners and established researchscientists inthe?eldofpoly?uorene research.