Anna Köhler – författare

At the surface, fantastic storyworlds appear free of the constraints of reality – yet for all their limitless potential, most popular fantasy texts still cling to patriarchal representations of gender. Drawing on the cognitive framework of Cultural Models Theory (CMT), this book examines the reasons behind this phenomenon by analyzing the intersection between gender and magic in four contemporary fantasy series: J.K. Rowling’s Harry Potter, Terry Pratchett’s Discworld novels, Robin Hobb’s Farseer trilogy, and Jonathan Stroud’s Bartimaeus trilogy. Magic as a core manifestation of the impossible that sets fantasy apart from other genres serves as the focal point for an exploration of the strategies by which fantasy engages with gender issues on its own terms. Showcasing the potential of CMT as a tool for literary analysis and, more specifically, as a framework through which to understand both gender and genre, this book provides new insights into how readers make sense offantastic storyworlds and the anchoring role that gender models play in that process. Overall, this analysis demonstrates how CMT can improve our understanding of the interplay of author, reader, text, and cultural context and the significant role of human cognition therein.

Ideal resource for learning about the fundamentals of organic semiconductors and their device applications with minimal prior knowledge Assuming only basic knowledge of excitations in molecules and semiconductors, Electronic Processes in Organic Semiconductors comprehensively explains the electronic structure of organic semiconductors, the flow of charges and the nature of excited states, and the intricacies of the electronic and optical processes. The text is complemented by feature boxes detailing aspects that may be trivial to one group of readers yet fully unknown another, as the book is intended for chemists, physicists, material scientists, engineers and biologists alike. The book is structured into four chapters. Chapter one introduces the reader to basic concepts of molecular photophysics. Chapter two explores how interactions between chromophores affect charges and excited states. Chapter three delineates the processes that are relevant to optoelectronic devices. Chapter four discusses how charge carrier transport, recombination and exciton dissociation can be employed in the operation of organic semiconductor devices. This newly revised and updated Second Edition responds to the development of novel material classes and the increase in bioelectronic applications. It reflects the advanced insight on electronic structure, charge transport, excitonic processes and the key role played by film morphology in this. Sample topics covered in Electronic Processes in Organic Semiconductors include: Electronic, vibrational, and spin factors in transitions between molecular statesExperimental methods to study charge transport and excited states, comprising spectroscopic techniques as well as device-based measurementsMechanisms of charge generation and transport in undoped and doped systemsProperties of excitations in single-compound materials, donor-acceptor systems and host-guest systemsBasics of device fabrication for solar cells, light-emitting diodes and transistors, operational principles, performance assessment and approaches for further improvementWritten in a way that makes understanding of organic semiconductors easy even for the uninitiated, the Second Edition of Electronic Processes in Organic Semiconductors continues to be the go-to resource for students intending to learn about organic semiconductors. It also serves as key reference for scientists from adjacent fields that need information on a particular aspect of organic semiconductors.

The first advanced textbook to provide a useful introduction in a brief, coherent and comprehensive way, with a focus on the fundamentals. After having read this book, students will be prepared to understand any of the many multi-authored books available in this field that discuss a particular aspect in more detail, and should also benefit from any of the textbooks in photochemistry or spectroscopy that concentrate on a particular mechanism.Based on a successful and well-proven lecture course given by one of the authors for many years, the book is clearly structured into four sections: electronic structure of organic semiconductors, charged and excited states in organic semiconductors, electronic and optical properties of organic semiconductors, and fundamentals of organic semiconductor devices.