home | Main Menu | About Database | Developers | Other Projects
Name: . Status: Registered user. License expires: NEVER. [Log off] Last Modified: 10/22/2024
Register!
ATTENTION! New free registration system was implemented.
If you are not registered user you can use Demo-version mode only. This mode provides limited information on GaAs system only. To view all information you must Register. If you are a registered user you must login to get access to all information. If you forgot password we will help to recover it for you.
Last Modified: 10/22/2024

Russian

Bandgap

Bandgap (Forbidden Zone) is the basic parameter of the condensed matter, which characterizes a nature of chemical bonds and accordingly determines the chemical, physical-chemical and physical properties of solids. The type of the chemical bonds of compound, the stability of compounds in the certain interval of changes of composition and external parameters, the type of electronic conductivity, the possibility of ionic conductivity in samples, and also the basic thermodynamic characteristics of bonding in solids.

The database "Bandgap" covers values of width of forbidden zone of the major classes of inorganic substances. The database contains information on methods of bandgap determination and the appropriate temperature ranges. The data on chemical and phase composition of materials, type of a crystal lattice (crystal system, structural type, space group), orientations of samples at optical measurements are given in addition. The all data are provided with references. Database includes the extensive graphical information about dependences of bandgap on various factors.

Cite us

If you use "Bandgap" DB in a scientific publication, we would appreciate citations to the following paper:

Kiselyova N.N., Dudarev V. A., Korzhuev M. A. Database on bandgaps of inorganic substances and materials // Inorganic Materials: Applied Research. 2016. V. 7. №1. P.34-39.
(https://doi.org/10.1134/S2075113316010093)

Russian

IMET RAS Databases
API for developers