1,3-Bis(N-carbazolyl)benzene

1,3-Bis(N-carbazolyl)benzene (NCB) can be used for:
(1) development of hole transport materials for solar cells. NCB is more stable than 1,4-Bis(diphenylamino)benzene (DAB)^[1].
(2) As an organic semiconductor layer component for the preparation of multilayer organic-based light-emitting transistors (OLETs)^[2].
(3) Used as a material for phosphorescent host materials
(4) Used as an organic synthetic backbone material

1,3-Bis(N-carbazolyl)benzene, known as mCP, with a high triplet energy (ET = 2.91 eV) and a very deep highest occupiedmolecular orbital (HOMO) level, is often used as host materials for efficient blue phosphorescent light-emitting diodes. Kawamura et al. demonstrated that the photoluminescence internal quantum yield of the blue emitter of FIrpic could approach nearly 100% when doped into the wide energy gap host of mCP .

Material for use as a phosphorescent host material

9,9'-(1,3-Phenylene)bis-9H-carbazole uses as a phosphorescent host material

[1] JUAN MENTADO-MORALES. A Promising Thermodynamic Study of Hole Transport Materials to Develop Solar Cells: 1,3-Bis(N-carbazolyl)benzene and 1,4-Bis(diphenylamino)benzene.[J]. Molecules, 2022. DOI:10.3390/molecules27020381.
[2] DAE-KYU KIM; Jong H C; Yoo Lim Kim. Organic Light-Emitting Transistors Based on Pentacene and 4,5-Di(9H-carbazol-9-yl)phthalonitrile Doped onto 1,3-Bis(N-carbazolyl)benzene[J]. The Journal of Physical Chemistry C, 2019. DOI:10.1021/acs.jpcc.9b00150.