US 11,870,004 B2
Metal oxide nanoparticles surface-treated with metal ion, quantum dot-light-emitting device comprising the same and method for fabricating the same
Hee-Sun Yang, Seoul (KR); and Chang-Yeol Han, Seoul (KR)
Assigned to HONGIK UNIVERSITY INDUSTRY-ACADEMIA COOPERATION FOUNDATION, Seoul (KR)
Filed by HONGIK UNIVERSITY INDUSTRY-ACADEMIA COOPERATION FOUNDATION, Seoul (KR)
Filed on Mar. 12, 2020, as Appl. No. 16/817,162.
Claims priority of application No. 10-2019-0041066 (KR), filed on Apr. 8, 2019.
Prior Publication US 2020/0321490 A1, Oct. 8, 2020
Int. Cl. H01L 33/06 (2010.01); H01L 33/30 (2010.01); H01L 33/00 (2010.01); H01L 25/075 (2006.01); B82Y 20/00 (2011.01)
CPC H01L 33/00 (2013.01) [B82Y 20/00 (2013.01); H01L 25/0753 (2013.01); H01L 33/0062 (2013.01); H01L 33/30 (2013.01); H01L 2933/0033 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A metal oxide nanoparticle, comprising:
a Zn containing metal Me1 oxide nanoparticle of Zn1-xMe1O (0≤x≤0.5) composition; and
a metal Me2 ion surface treatment layer formed on a surface of the Zn containing metal Me1 oxide nanoparticle,
wherein Me1 is any one selected from Li, Be, Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Ga, Ge, Rb, Sr, Zr, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Sb, Ba, or a combination thereof,
wherein Me2 is any one selected from Li, Be, Na, Mg, Al, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Rb, Sr, Zr, Nb, Mo, Ru, Rh, Pd, Ag, In, Sn, Sb, Ba, or a combination thereof,
wherein the metal Me2 ion surface treatment layer comprises a layer formed by reaction of a metal Me2 ion with a dangling bond on the surface of the Zn containing metal Me1 oxide nanoparticle, and
wherein the metal oxide nanoparticle comprising the Zn containing metal Me1 oxide nanoparticle and the metal Me2 ion surface treatment layer has an electron mobility lower than that of a metal oxide nanoparticle that contains the Zn containing metal Me1 oxide nanoparticle without the metal Me2 ion surface treatment layer.