Patent ID: 11953537
Assignee: YUNGU (GU'AN) TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 8:
9. The test device according to claim 1, wherein a host material of the P-type doped layer is one or more of N,N′-bis (naphthalene-2-yl)-N,N′-bis (phenyl)biphenyl-4,4′-diamine (NPB), 4,4′,4″-tris (carbazol-9-yl) triphenylamine (TCTA), 4,4′-cyclohexylbis [N,N-bis (4-methylphenyl)] aniline (TAPC), 1,3-dicarbazol-9-ylbenzene (mCP).