Transition metal and rare earth compounds are investigated intensively because of important questions concerning fundamental research problems. More recently also their enormous potential for the development of new materials for photophysical and photochemical applications has been explored. Thus, it is important to focus on a deeper understanding of the elctronic energies, transition prohabilities, intermolecular interactions, etc.. This task has been accomplished by leading researchers in the field. They present introductions into, but also detailed reviews of the current state of knowledge of three different subjects.
The essential resource that offers a comprehensive understanding of OLED optimizations Highly Efficient OLEDs. Materials Based on Thermally Activated Delayed Fluorescence (TADF) offers substantial information on the working principle of OLEDs and on new types of emitting materials (organic and inorganic). As the authors explain, OLEDs that use the Singlet-Harvesting mechanism based on the molecular property of TADF work according to a new exciton harvesting principle. Thus, low-cost emitter materials, such as Cu(I) or Ag(I) complexes as well as metal-free organic molecules, have the potential to replace high-cost rare metal complexes being currently applied in OLED technology. With contributions from an international panel of experts on the topic, the text shows how the application of new TADF materials allow for the development of efficient OLED displays and lighting systems. This new mechanism is the gateway to the third-generation of luminescent materials. This important resource: -Offers a state-of-the-art compilation of the latest results in the dynamically developing field of OLED materials -Is edited by a pioneer in the field of OLED material technology -Contains a detailed application-oriented guide to new low-cost materials for displays and lighting -Puts the focus on the emerging fields of OLED technology Written for materials scientists, solid state chemists, solid state physicists, and electronics engineers, Highly Efficient OLEDs. Materials Based on Thermally Activated Delayed Fluorescence offers a comprehensive resource to the latest advances of OLEDs based on new TADF materials.
The fourteenth, seventeenth and twentieth centuries in European history were marked by exceptionally intense experiences of power, violence and mass death. Power, Violence and Mass Death in Pre-Modern and Modern Times undertakes the ambitious and entirely new task of analyzing, through comparison, the importance of power, violence and mass death in these centuries. Death and the excesses of power were characteristics of the twentieth century, but this volume teaches about the causes and possible consequences of this oppressive individual and collective experience. We now have a more established historical perspective for understanding the importance of power and the causes and results of the rapid increase in mortality in the fourteenth and seventeenth centuries. In this way, this volume makes progress towards reaching new perceptions of all three 'crisis' epochs. Appealing to a wide readership, Power, Violence and Mass Death in Pre-Modern and Modern Times will be of interest to scholars not only of the three centuries highlighted, but also to anyone with an historical and sociological interest in the larger questions raised about the nature of power, violence and mass death on European society.
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