Patent ID: 11955578
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 12:
13. The optoelectronic apparatus of claim 1, wherein
the three-dimensional perovskite is represented by Formula 1-1, and
the two-dimensional perovskite is represented by Formula 2-1:

[CH(NH2)2]a[CH3NH3]b[Cs]cPb[Br]d[I]e  Formula 1-1

PEA2PbI4  Formula 2-1, wherein, in Formulae 1-1 and 2-1,
a, b, and c are each independently a real number greater than 0 to less than 1, and (a+b+c)=1;
d and e are each independently a real number greater than 0 to less than 3, and (d+e)=3; and
PEA is phenylethyl ammonium.