Semiconductor phosphor nanoparticle and light-emitting element including semiconductor phosphor nanoparticle
A semiconductor phosphor nanoparticle includes a semiconductor nanoparticle core containing a compound semiconductor, a shell layer coating the semiconductor nanoparticle core, and a modifying organic compound bonded to the shell layer through siloxane bonding. The modifying organic compound has an alkyl chain.
1. A semiconductor phosphor nanoparticle comprising:
a semiconductor nanoparticle core including a compound semiconductor;
a shell layer coating the semiconductor nanoparticle core; and
a modifying organic compound bonded to the shell layer through siloxane bonding, the modifying organic compound having an alkyl chain, wherein
a terminal of the alkyl chain of the modifying organic compound is a hydroxyl group.
2. The semiconductor phosphor nanoparticle according to claim 1 , wherein the modifying organic compound is bonded to the shell layer through one siloxane bond.
3. The semiconductor phosphor nanoparticle according to claim 1 , wherein the modifying organic compound is monoalkoxy alkylsilane.
4. The semiconductor phosphor nanoparticle according to claim 1 , wherein the shell layer includes a plurality of shell layers.
5. The semiconductor phosphor nanoparticle according to claim 1 , wherein the modifying organic compound forms a modifying organic compound layer having a thickness of 0.75 nm or more.
6. The semiconductor phosphor nanoparticle according to claim 1 , wherein the semiconductor nanoparticle core and the shell layer contain a group 13-15 semiconductor.
7. A light-emitting element comprising the semiconductor phosphor nanoparticle according to claim 1 .
8. The light-emitting element according to claim 7 , further comprising a transparent member, wherein the semiconductor phosphor nanoparticle is dispersed in the transparent member.
9. The light-emitting element according to claim 8 , wherein a volume ratio of the semiconductor phosphor nanoparticle to the transparent member is 0.00001 or more and 0.2 or less.
10. The light-emitting element according to claim 8 , wherein the transparent member contains 80% by mass or more of a glass material or a polymer material.