CBP

4,4′-Bis(N-carbazolyl)-1,1′-biphenyl

C36H24N2

Organic

HTL, EML, HIL

CuPc

Copper(II) phthalocyanine

C32H16CuN8

Organic

HTL, HIL, SC

DNTPD

N4,N4′-Bis[4-[bis(3-methylphenyl)amino]phenyl]-N4,N4′-diphenyl-[1,1′-biphenyl]-4,4′-diamine

C64H54N4

Organic

HTL, HIL

DPVBi

4,4-bis(2,2-diphenylvinyl)-1,1-diphenyl

C40H30

Organic

EML, HIL, SM, SC

• Derivatives:
• Spiro-DPVBi

Gold

Gold

Au

Inorganic

HIL, COND, MTL

HAT-CN

Dipyrazino[2,3-f :2',3'-h]quinoxaline-2,3,6,7,10,11-hexacarbonitrile and 1,4,5,8,9,11-Hexaazatriphenylenehexacarbonitrile

C18N12

Organic

HIL

m-MTDATA

4,4′,4′′-Tris[phenyl(m-tolyl)amino]triphenylamine

C57H48N4

Organic

HTL, HIL

MoO₃

Molybdenum(VI) oxide

MoO3

Inorganic

HIL

Nickel oxide

Nickel (II) oxide

NiO

Inorganic

HIL, COND

NPB

N,N′-Di(1-naphthyl)-N,N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine

C44H32N2

Organic

HTL, HIL

• Derivatives:
• α-NPD

PEDOT:PSS

Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)

Organic Co-polymer

HTL, HIL, COND

TCNQ

7,7,8,8-Tetracyanoquinodimethane

C12H4N4

Organic Polymer

HTL, HIL, SM, SC

• Derivatives:
• F4-TCNQ

TCTA

Tris(4-carbazoyl-9-ylphenyl)amine

C54H36N4

Organic

HTL, HIL

TFB

Poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(4,4′-(N-(4-sec-butylphenyl)diphenylamine)]

(C51 H61 N)n

Organic Polymer

HTL, HIL

TiN

Titanium nitride

Inorganic

HIL

TPD

N,N′-Bis(3-methylphenyl)-N,N′-diphenylbenzidine

C38H32N2

Organic

HTL, HIL

• Derivatives:
• MeO-TPD

Tungsten(VI) oxide

Tungsten(VI) oxide

WO3

Inorganic

HIL

V2O5

Vanadium(V) oxide

Inorganic

ETL, EIL, HIL