Springer Theses
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Molecular Orientation and Emission Characteristics of Ir Complexes and Exciplex in Organic Thin Films

Authors: Moon, Chang-Ki

  • Recognized as an outstanding Thesis by the Department of Materials Science and Engineering, Seoul National University
  • Describes how molecular orientation influences electrical and optical properties of molecular films
  • Shows how the optical characteristics of OLEDs are influenced by molecular orientation
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  • ISBN 978-981-13-6055-8
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Hardcover $169.99
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About this book

This thesis considers molecular orientation in thin films and introduces an optical model describing this orientation as applied to organic light-emitting diodes (OLEDs). It also describes the electronic structure of intermolecular charge transfer excitons correlated to molecular orientation in solids.

It has long been known that molecular orientation influences the electrical and optical properties of molecular films. One notable example is in liquid crystals where rigid rod or disk shaped molecules are commonly used. Understanding the origin of the molecular orientation and its control by surface treatment and electric field resulted in the development of liquid crystal displays. The same thing has happened in organic electronics, and considerable effort has been devoted to understanding and controlling molecular orientation in solid films to improve charge carrier mobility and light absorption, ultimately to improve the performance of organic solar cells and thin film transistors.

In contrast, less attention has been paid to molecular orientation and its influence on the characteristics of OLEDs, probably because of the use of amorphous films rather than micro-crystalline films, and it is only in recent years that some molecular films are known to have preferred orientation.  This thesis addresses this topic, focusing on OLEDs, describing the origin and control of the orientation of phosphorescent Ir complexes possessing spherical shape rather than rod or disk shape, the simulation of the optical characteristics of OLEDs influenced by preferred molecular orientation, and finally the orientation of intermolecular charge transfer excitons and its correlation to electronic structures in thin films.


About the authors

Dr. Chang-Ki Moon received the "Best PhD Theses Award in 2017" in the Materials Science and Engineering department at SNU in December 2017, and the “Best Paper Award” of Schrodinger’s 2017 Excellence in Materials Science Applications Publication Contest in Schrodinger Inc. in February 15, 2018.  

Table of contents (5 chapters)

Table of contents (5 chapters)
  • Introduction

    Moon, Chang-Ki

    Pages 1-15

  • Modeling of the Dipole Radiation in an Anisotropic Microcavity

    Moon, Chang-Ki

    Pages 17-32

  • The Orientation of Ir Complexes Doped in Organic Amorphous Layers

    Moon, Chang-Ki

    Pages 33-58

  • Analysis of the Electronic Structure and Emission Process of Exciplex in Solids

    Moon, Chang-Ki

    Pages 59-71

  • Summary and Conclusion

    Moon, Chang-Ki

    Pages 73-73

Buy this book

eBook $129.00
price for USA in USD (gross)
  • ISBN 978-981-13-6055-8
  • Digitally watermarked, DRM-free
  • Included format: EPUB, PDF
  • ebooks can be used on all reading devices
  • Immediate eBook download after purchase
Hardcover $169.99
price for USA in USD
  • ISBN 978-981-13-6054-1
  • Free shipping for individuals worldwide
  • Usually dispatched within 3 to 5 business days.
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Bibliographic Information

Bibliographic Information
Book Title
Molecular Orientation and Emission Characteristics of Ir Complexes and Exciplex in Organic Thin Films
Authors
Series Title
Springer Theses
Copyright
2019
Publisher
Springer Singapore
Copyright Holder
Springer Nature Singapore Pte Ltd.
eBook ISBN
978-981-13-6055-8
DOI
10.1007/978-981-13-6055-8
Hardcover ISBN
978-981-13-6054-1
Series ISSN
2190-5053
Edition Number
1
Number of Pages
XXIX, 76
Number of Illustrations
5 b/w illustrations, 32 illustrations in colour
Topics