Functional dyes have received considerable interest in the last ten years in the academia and industry due to their wide high-tech applications.

The main focus of this issue will be on novel and exciting dyes for high-tech applications such as electronics, optoelectronics, and biomedical applications. This special issue will become an international forum for researchers to provide the most recent advances, developments, and ideas in the field, with a special emphasis given to the technical and observational results obtained within the last three years. Potential topics include, but are not limited to:

• Dyes for optoelectronics such as dye-sensitized solar cells (DSSCs), photochromic materials, liquid crystal displays, and organic light-emitting devices (OLEDs)
• Dyes for electronic materials such as organic semiconductors
• Dyes for imaging technologies including electrophotography (photocopying and laser printing) and thermal and ink-jet printings
• Infrared absorber dyes for optical data storage and computer-to-plate and security printing
• Dyes for biotechnology applications such as dyes used in chromatography for proteins and enzymes purifications
• Dyes for biomedical application such as photodynamic therapy (PDT)

Before submission authors should carefully read over the journal's Author Guidelines, which are located at http://www.hindawi.com/journals/chem/guidelines/. Prospective authors should submit an electronic copy of their complete manuscript through the journal Manuscript Tracking System at http://mts.hindawi.com/submit/journals/chem/materials.chemistry/fd/ according to the following timetable: