Indium phosphide (InP) is a semiconductor composed of indium and phosphorus. It is used in high-power and high-frequency electronics because of its superior electron velocity with respect to the more common semiconductors silicon and gallium arsenide. It also has a direct bandgap, making it useful for optoelectronics devices like laser diodes. A semiconductor is a material that is an insulator at very low temperature, but which has a sizable electrical conductivity at room temperature. ... General Name, Symbol, Number indium, In, 49 Chemical series Poor metals Group, Period, Block 13 (IIIA), 5 , p Density, Hardness 7310 kg/m3, 1. ... This article is about the chemical element. ... General Name, Symbol, Number silicon, Si, 14 Series metalloid Group, Period, Block 14 (IVA), 3, p Density, Hardness 2330 kg/m3, 6. ... This article is about the chemical compound. ... In semiconductor physics, a direct bandgap means that the conduction band lies directly above the valence band, in momentum space (see E-k plots). ... Optoelectronics is the study and application of electronic devices that interact with light. ... A laser diode is a laser where the active medium is a semiconductor p-n junction similar to that found in a light-emitting diode. ...

Indium phosphide also has one of the longest-lived optical phonons of any compound with the zincblende crystal structure. General Name, Symbol, Number indium, In, 49 Chemical series Poor metals Group, Period, Block 13 (IIIA), 5 , p Density, Hardness 7310 kg/m3, 1. ... This article is about the chemical element. ... Color is an important part of the visual arts. ... ... The atomic mass unit (amu), unified atomic mass unit (u), or dalton (Da), is a small unit of mass used to express atomic masses and molecular masses. ... In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. ... Sphalerite sample Another sphalerite sample Sphalerite (ZnS) is a mineral that is the chief ore of zinc. ... In the physical sciences, a phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i. ... Temperature and air pressure can vary from one place to another on the Earth, and can also vary in the same place with time. ... A solid is a state of matter, characterized by a definite volume and a definite shape (i. ... The melting point of a solid is the temperature at which it changes state from solid to liquid. ... Temperature and air pressure can vary from one place to another on the Earth, and can also vary in the same place with time. ... The kelvin (symbol: K) is the SI unit of temperature, and is one of the seven SI base units. ... Alternate use: Boiling point Boiling Point, known in Japan as 3-4X Jūgatsu (３－４Ｘ１０月 lit. ... Relative density (also known as specific gravity) is a measure of the density of a material. ... In solid state physics and related applied fields, the band gap is the energy difference between the top of the valence band and the bottom of the conduction band in insulators and semiconductors. ... An electronvolt (symbol: eV) is the amount of energy gained by a single unbound electron when it falls through an electrostatic potential difference of one volt. ... Properties The electron (sometimes called negatron; commonly represented as e−) is a subatomic particle. ... In solid state physics, a particles effective mass is the mass it seems to carry in the semiclassical model of transport in a crystal. ... In solid state physics, an electron hole (usually referred to simply as a hole) is the absence of an electron from the otherwise full valence band. ... In solid state physics, a particles effective mass is the mass it seems to carry in the semiclassical model of transport in a crystal. ... Mobility is the ability and willingness to move or change; this can depend on motor skills, special tools such as a walking stick, Zimmer Frame or wheelchair, vehicles, uncongested roads, public transport; mobility with regard to ones home depends on availability of houses and being bound to an area... For a list of biologically injurious substances, including toxins and other materials, as well as their effects, see poison. ... SI (disambiguation). ... A phonon is a quantized mode of vibration occurring in a rigid crystal lattice, such as the atomic lattice of a solid. ... Sphalerite sample Another sphalerite sample Sphalerite (ZnS) is a mineral that is the chief ore of zinc. ... In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. ...

The Sellmeier equation that describes how the optical refractive index for indium phosphide depends on wavelength is given by: In optics, the Sellmeier equation is an empirical relationship between refractive index n and wavelength λ for a particular transparent medium. ... The refractive index of a material is the factor by which electromagnetic radiation is slowed down (relative to vacuum) when it travels inside the material. ... The wavelength is the distance between repeating units of a wave pattern. ...

where λ is the wavelength in micrometres. A micrometre (American spelling: micrometer), symbol µm, is an SI unit of length. ...

external links

• Extensive site on the physical properties of indium phosphide (http://www.ioffe.ru/SVA/NSM/Semicond/InP/index.html)