US 12,191,414 B2
Metal-halide semiconductor optical and electronic devices and methods of making the same
Daniel R. Gamelin, Seattle, WA (US); Daniel M. Kroupa, Seattle, WA (US); Tyler J. Milstein, Seattle, WA (US); Sidney E. Creutz, Seattle, WA (US); Matthew J. Crane, Seattle, WA (US); and Joo Yeon Roh, Seattle, WA (US)
Assigned to UNIVERSITY OF WASHINGTON, Seattle, WA (US)
Appl. No. 15/733,769
Filed by UNIVERSITY OF WASHINGTON, Seattle, WA (US)
PCT Filed Apr. 26, 2019, PCT No. PCT/US2019/029355
§ 371(c)(1), (2) Date Oct. 20, 2020,
PCT Pub. No. WO2019/210174, PCT Pub. Date Oct. 31, 2019.
Claims priority of provisional application 62/801,535, filed on Feb. 5, 2019.
Claims priority of provisional application 62/663,656, filed on Apr. 27, 2018.
Prior Publication US 2021/0242357 A1, Aug. 5, 2021
Int. Cl. H01L 31/055 (2014.01); C09K 11/77 (2006.01); H01L 31/0216 (2014.01); H01L 31/18 (2006.01); H01L 33/50 (2010.01)
CPC H01L 31/055 (2013.01) [C09K 11/7773 (2013.01); H01L 31/02168 (2013.01); H01L 31/18 (2013.01); H01L 33/502 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A device comprising:
a first layer; and
a composition disposed in the form of a film on the first layer, wherein the film does not comprise nanocrystals, the composition having a chemical formula selected from the group of formulae consisting of one or more of:
M:ABX3;
M:AB2X5;
M:A4BX6;
M:C2DX5;
M:A2CDX6; or
combinations thereof;
wherein:
A is at least one cation selected from the group consisting of Li+, Na+, K+, Rb+, Cs+, methylammonium (MA), formamidinium (FA), guanidinium, dimethylammonium, trimethylammonium, and combinations thereof,
B is at least one cation selected from the group consisting of Pb2+, Sn2+, Ge2+, Cd2+, Mg2+, Ti2+, Hg2+, and combinations thereof,
C is at least one cation selected from the group consisting of Ag+, Cu+, Sn+, Na+, K+, Tl+, Au+, and combinations thereof,
D is at least one cation selected from the group consisting of In3+, Bi3+, Sb3+, Au3+, and combinations thereof,
X is at least one anion selected from the group consisting of O2−, F−, Cl−, Br−, I−, CN−, and combinations thereof, and
M is at least one cation selected from the group consisting of Y3+, La3+, Ce3+, Pr3+, Nd3+, Pm3+, Sm3+, Eu3+, Gd3+, Tb3+, Dy3+, Ho3+, Er3+, Tm3+, Yb3+, Lu3+, Sc3+, Fe3+, Al3+, V2+, Cr2+, Mn2+, Bi3+, and combinations thereof,
wherein the composition is configured to emit light of a first wavelength after absorption of light of a second wavelength that is different than the first wavelength.