LIGHT EMITTING ELEMENT, LIGHT EMITTING DEVICE, AUTHENTICATION DEVICE, AND ELECTRONIC DEVICE

摘要

Provided are a light emitting element with a high efficiency and a long life that emits light in a near-infrared region, and a light emitting device, authentication device and electronic device that include the light emitting element. A light emitting element (1) according to one aspect of the invention includes an anode (3), a cathode (8), and a light emitting layer (5) that is provided between the anode (3) and the cathode (8) and that emits light by conducting current between the anode (3) and the cathode (8). The light emitting layer (5) includes a pyrromethene-based boron complex as a light emitting material and a tetracene-based material as a host material for retaining the light emitting material.

主权项

1. A light emitting element comprising:
an anode; a cathode; and a light emitting layer that is provided between the anode and the cathode and that emits light by conducting current between the anode and the cathode, wherein the light emitting layer includes a compound represented by the following formula (1) as a light emitting material and a compound represented by the following formula IRH-1 as a host material for retaining the light emitting material.[In the formula (1), X represents a carbon atom to which hydrogen binds, or a nitrogen atom, and R represents a hydrogen atom, an alkyl group, an aryl group that may have a substituent group, an allyl group, an alkoxy group, or a heterocyclic group.][In the formula IRH-1, n represents a natural number from 1 to 12, and each R independently represents a hydrogen atom, an alkyl group, an aryl group that may have a substituent group, or an arylamino group.]