LIGHT-EMITTING ELEMENT, QUANTUM DOT SOLUTION, AND METHOD FOR MANUFACTURING LIGHT-EMITTING ELEMENT

• Main Authors: YAMAMOTO, Masaki, KITANO, Keisuke, GOTO, Kazuki
• Format: Patent
• Language: English; French; Japanese
• Published: 24.11.2022
• Subjects: ADVERTISING; BASIC ELECTRIC ELEMENTS; CRYPTOGRAPHY; DISPLAY; DISPLAYING; EDUCATION; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; LABELS OR NAME-PLATES; PHYSICS; SEALS; SEMICONDUCTOR DEVICES; SIGNS

A light-emitting element (5) according to the present invention is provided with a cathode (51), an anode (56), and a light-emitting layer (54) arranged between the cathode and the anode, in which the light-emitting layer contains a quantum dot (1), a plurality of first ions (21), and a plurality of second ions (22), each of the first ions is an anion, each of the second ions is a cation, the anion is any one selected from S2-, Se2- and Te2-, and the cation comprises a non-metal element. Un élément électroluminescent (5) selon la présente invention comprend une cathode (51), une anode (56) et une couche électroluminescente (54) disposée entre la cathode et l'anode, la couche électroluminescente contenant un point quantique (1), une pluralité de premiers ions (21) et une pluralité de seconds ions (22), chacun des premiers ions étant un anion, chacun des seconds ions étant un cation, l'anion étant un anion quelconque choisi parmi S2-, Se2- et Te2-, et le cation comprenant un élément non métallique. 本開示に係る発光素子（５）は、カソード（５１）と、アノード（５６）と、カソードおよびアノード間に設けられた発光層（５４）とを備え、発光層は、量子ドット（１）と、複数の第１イオン（２１）と、複数の第２イオン（２２）とを含み、各第１イオンがアニオンであり、各第２イオンがカチオンであり、前記アニオンは、Ｓ２－、Ｓｅ２－、およびＴｅ２－のいずれか１つであり、前記カチオンは非金属元素から成る。