| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-emitting material which can return an emitted light color changed by a mechanical stimulation to an original color at a relatively low temperature (preferably room temperature), while keeping a solid state.SOLUTION: A light-emitting material comprises a light-emitting site and a branched oligosiloxane compound having a substituent represented by formula (1) (wherein, R-Rare each independently 1-6C alkyl, phenyl, or the like, or H; k is an integer of 0-12; m is 2 or 3; n is an integer of 1-3;* is a site bound to the light-emitting site) bound to the light-emitting site. |
