Dear Colleagues,

Inorganic functional materials form the basis of the technical development of our civilization. Among their variety for this Special Issue, we selected those that are used to convert various types of energy into optical photons, the so-called materials for photonics. Such materials are typically used both as sources of optical radiation, for example, in illumination or generation of laser radiation, and as intermediate materials for working with photosensors, photovoltaic cells, etc. The set of the emitting or luminescent parameters of such compounds is formed by the composition of the atoms included in their structure.

The achievements of recent years in the fields of theory and technology of photonic materials make it possible to purposefully design their properties, which contributes to their rapid implementation in practice. The transition from single-and di-cation compounds to multi-ion (cationic and anionic) systems is particularly intriguing. It permits the construction at the atomic levels, making it possible to achieve simultaneous control of the band gap, the electron density structure in the zones adjacent to it, and the disposition of radiative levels inside it. This approach also provides the prerequisites for solving other problems, in particular minimizing optical radiation losses inside the material under various operating conditions.

A variety of developed and used methods for the preparation of multiionic compounds make it possible to quickly introduce such materials into equipment using materials for photonics.

Prof. Dr. Mikhail Korzhik (Korjik)
Dr. Georgiy Dosovitskiy
Dr. Yunyun Li
Guest Editors

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• materials for photonics
• luminescence
• light emitters
• scintillators
• crystal growth
• ceramics