186 pages | 8 Color Illus. | 138 B/W Illus.
To physicists and chemists, color means light—emission, absorption, spectrum, and coloration. Near-Infrared Organic Materials and Emerging Applications presents knowledge and applications of invisible "colored" organic materials. Near-infrared (NIR) materials are defined as substances that interact with NIR light, namely, absorption and reflection, and emit NIR light upon stimulation, for example, photoexcitation, electric field, and chemical reaction. This book offers up-to-date information on low band-gap organic materials with unique near-infrared absorbing, fluorescent, and photovoltaic properties for various emerging applications.
The author emphasizes the chemistry of materials, in particular the structure–property relationship of near-infrared organic compounds and polymers. The text discusses the molecular design aspect of NIR materials, including effects of conjugation length and donor–acceptor charge transfer. Chapters also cover information on the structures and key properties of NIR organic compounds, such as those containing rylene, polymethine, and metal-complex chromophores, as well as polymers, including nonconjugated NIR-absorbing, conjugated dye-containing, and donor–acceptor conjugated polymers.
The final chapter describes emerging applications of NIR organic materials based on absorbing, chromogenic, photosensitizing, photovoltaic, and fluorescent properties, as well as applications of low band-gap compounds and polymers in ambipolar organic transistors. Presenting useful data and thought-provoking ideas, this book provides a practical reference on optical properties and structures of NIR organic materials and their design principles and applications.
Color and near-infrared light
Types of NIR materials
Current uses of and needs for NIR materials
Molecular design and energy gap tuning
Effect of conjugation length
Effect of bond length alternation
Effect of donor–acceptor charge transfer
Near-infrared organic compounds
NIR compounds containing rylene chromophores
NIR compounds containing polymethine and meropolymethine chromophores
NIR compounds containing donor–acceptor chromophores
NIR compounds containing metal complex chromophores
Selective NIR-absorbing compounds
Near-infrared absorbing polymers
Nonconjugated NIR-absorbing polymers
Conjugated quinoid type polymers
Conjugated dye-containing polymers
Donor–acceptor conjugated polymers
Emerging applications of near-infrared organic materials
Applications based on NIR-absorbing property
Applications based on NIR chromogenic property
Photovoltaic applications using NIR organic materials
Transistor applications using low band-gap polymers
Applications based on NIR fluorescent property