vi
Preface
which is a reference book comprising the principal classes of industrially produced
dyes and their toxicological, ecological, and legal survey. Thus, the aim of this book
“Progress in the Science of Functional Dyes” is to give readers cutting-edge information on functional dye chemistry evolved from “Color Chemistry” and “Industrial
Dyes”. This book is written by Japanese senior and young dye-researchers, although
we understand that there are a wide variety of opinions from the reader in this regard.
This book actually covers a wide range of relevant topics to functional dyes, from
synthesis and functionalities to applications. Making a survey of recent progresses
in functional dye chemistry provides the opportunities not only to understand the
structure–property relationships of a variety of functional dyes but also to know how
they are applied to practical uses from electronic devices to biochemical analyses.
From classic dyes such as cyanines, squaraines, porphyrins, phthalocyanines, and so
on to the newest functional π-conjugation systems, various types of functional dyes
are taken up in the book, especially focusing on their state-of-the-art topics and future
aspects. Indeed, Part I is the synthesis and properties of cyanine dyes, squaraine
dyes, porphyrins, phthalocyanines, BODIPY dyes, and their analogues as important structures for functional dyes. Part II deals with crystal polymorphism and dye
aggregation, photochromism, two-photon absorption properties, solid-state photoluminescence, and circular polarized luminescence as the unique advanced properties of functional dyes. In Part III, various applications of functional dyes such as
chemosensors and bioimaging, white-light emissive materials based on supramolecular approach, photodynamic therapy, photoenergy conversion (dye-sensitized solar
cells), photoenergy conversion (organic photovoltaic), organic light-emitting diode
are introduced. Therefore, interested readers will benefit from the scientific context
where organic dyes and pigments are comprehensively expounded from the chemical
aspects.
We thank the authors and publishers for copyrighted materials reproduced with
their permission. Thanks are also due to Dr. Shinichi Koizumi, Senior Editor of
Chemical Division, Springer, who lead us to this project, as well as Ms. Taeko Sato,
who carefully edited the manuscript and Ms. Kowsalya Raghunathan for the project
coordination.
Wish for the end of the Novel Coronavirus Disease 2019 (COVID-19).
Hiroshima, Japan
Osaka, Japan
July 2020
Yousuke Ooyama
Shigeyuki Yagi
Preface
which is a reference book comprising the principal classes of industrially produced
dyes and their toxicological, ecological, and legal survey. Thus, the aim of this book
“Progress in the Science of Functional Dyes” is to give readers cutting-edge information on functional dye chemistry evolved from “Color Chemistry” and “Industrial
Dyes”. This book is written by Japanese senior and young dye-researchers, although
we understand that there are a wide variety of opinions from the reader in this regard.
This book actually covers a wide range of relevant topics to functional dyes, from
synthesis and functionalities to applications. Making a survey of recent progresses
in functional dye chemistry provides the opportunities not only to understand the
structure–property relationships of a variety of functional dyes but also to know how
they are applied to practical uses from electronic devices to biochemical analyses.
From classic dyes such as cyanines, squaraines, porphyrins, phthalocyanines, and so
on to the newest functional π-conjugation systems, various types of functional dyes
are taken up in the book, especially focusing on their state-of-the-art topics and future
aspects. Indeed, Part I is the synthesis and properties of cyanine dyes, squaraine
dyes, porphyrins, phthalocyanines, BODIPY dyes, and their analogues as important structures for functional dyes. Part II deals with crystal polymorphism and dye
aggregation, photochromism, two-photon absorption properties, solid-state photoluminescence, and circular polarized luminescence as the unique advanced properties of functional dyes. In Part III, various applications of functional dyes such as
chemosensors and bioimaging, white-light emissive materials based on supramolecular approach, photodynamic therapy, photoenergy conversion (dye-sensitized solar
cells), photoenergy conversion (organic photovoltaic), organic light-emitting diode
are introduced. Therefore, interested readers will benefit from the scientific context
where organic dyes and pigments are comprehensively expounded from the chemical
aspects.
We thank the authors and publishers for copyrighted materials reproduced with
their permission. Thanks are also due to Dr. Shinichi Koizumi, Senior Editor of
Chemical Division, Springer, who lead us to this project, as well as Ms. Taeko Sato,
who carefully edited the manuscript and Ms. Kowsalya Raghunathan for the project
coordination.
Wish for the end of the Novel Coronavirus Disease 2019 (COVID-19).
Hiroshima, Japan
Osaka, Japan
July 2020
Yousuke Ooyama
Shigeyuki Yagi