Title:
ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/166054
Kind Code:
A1
Abstract:
This electroluminescent element (1) is provided with a positive electrode (12), a negative electrode (17) and a QD layer (15) which is arranged between the positive electrode and the negative electrode, while containing quantum dots. The quantum dots are Cd-free quantum dots that contain at least Zn and Se, but do not contain Cd at a mass ratio of 1/30 or more relative to Zn; and the particle diameters of the quantum dots are within the range of from 3 nm to 20 nm.
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Inventors:
YAMAMOTO MASAKI
YAMADA HIROHISA
UETA YOSHIHIRO
KITANO KEISUKE
GOTO KAZUKI
SAKAKIBARA YUSUKE
KOBASHI TADASHI
KAGO MASASHI
NIKATA SOICHIRO (JP)
OGURA YUKO (JP)
TANAKA MASANORI (JP)
TAKAMIZUMA YUKA (JP)
ITO TETSUJI (JP)
YAMADA HIROHISA
UETA YOSHIHIRO
KITANO KEISUKE
GOTO KAZUKI
SAKAKIBARA YUSUKE
KOBASHI TADASHI
KAGO MASASHI
NIKATA SOICHIRO (JP)
OGURA YUKO (JP)
TANAKA MASANORI (JP)
TAKAMIZUMA YUKA (JP)
ITO TETSUJI (JP)
Application Number:
PCT/JP2020/006145
Publication Date:
August 26, 2021
Filing Date:
February 17, 2020
Export Citation:
Assignee:
SHARP KK (JP)
NS MAT INC (JP)
NS MAT INC (JP)
International Classes:
H05B33/14; H01L51/50
Foreign References:
| US20190280231A1 | 2019-09-12 | |||
| JP2001523758A | 2001-11-27 |
Other References:
CHRISTIAN IPPEN, TONINO GRECO, YOHAN KIM, JIWAN KIM, MIN SUK OH, CHUL JONG HAN, ARMIN WEDEL: "ZnSe/ZnS quantum dots as emitting material in blue QD-LEDs with narrow emission peak and wavelength tunability", ORGANIC ELECTRONICS, ELSEVIER , vol. 15, no. 1, 1 January 2014 (2014-01-01), AMSTERDAM., NL, pages 126 - 131, XP055401363, ISSN: 1566-1199, DOI: 10.1016/j.orgel.2013.11.003
LI, C. ; NISHIKAWA, K. ; ANDO, M. ; ENOMOTO, H. ; MURASE, N.: "Synthesis of Cd-free water-soluble ZnSe"1"-"xTe"x nanocrystals with high luminescence in the blue region", JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS,INC., US, vol. 321, no. 2, 15 May 2008 (2008-05-15), US, pages 468 - 476, XP022593755, ISSN: 0021-9797, DOI: 10.1016/j.jcis.2008.02.009
LI, C. ; NISHIKAWA, K. ; ANDO, M. ; ENOMOTO, H. ; MURASE, N.: "Synthesis of Cd-free water-soluble ZnSe"1"-"xTe"x nanocrystals with high luminescence in the blue region", JOURNAL OF COLLOID AND INTERFACE SCIENCE, ACADEMIC PRESS,INC., US, vol. 321, no. 2, 15 May 2008 (2008-05-15), US, pages 468 - 476, XP022593755, ISSN: 0021-9797, DOI: 10.1016/j.jcis.2008.02.009
Attorney, Agent or Firm:
HARAKENZO WORLD PATENT & TRADEMARK (JP)
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