Phosphorescent Host Materials

Phosphorescent host materials represent the second generation of organic light-emitting diode (OLED) materials. These materials use phosphorescence as their primary light-emitting mechanism, relying forbidden triplet-singlet transitions to achieve high efficiency. By harnessing triplet state electrons, phosphorescent materials have a high theoretical efficiency of up to 75%.

OLEDs incorporating these materials are commonly referred to as PhOLEDs (phosphorescent OLEDs), known for their superior efficiency and performance in next-generation display and lighting technologies.

The key characteristics of phosphorescent host materials include:

Wide Energy Bandgap

High Triplet Energy

High Ambipolar Charge Transport

Phosphorescent host materials are widely used in PhOLEDs, offering high efficiency, low power consumption, and the ability to produce vibrant colors across the visible spectrum. By addressing challenges such as achieving high triplet energy and minimizing exciton losses, phosphorescent hosts continue to advance OLED technology.

Explore our range of high purity phosphorescent host molecules, such as CBP and T2T, which are compatible with a range of emitters for exciting PhOLED developments.

Jump to: Browse all Phosphorescent Host Materials | Resources and Support

Browse all Phosphorescent Host Materials

Filter by purification technique: sublimed

TPBi

CAS 192198-85-9

From $273

CBP, 4,4′-Bis(N-carbazolyl)-1,1′-biphenyl

CAS 58328-31-7

From $150

TAPC

CAS 58473-78-2

From $403

TmPyPB

CAS 921205-03-0

From $364

TCTA

CAS 139092-78-7

From $150

OXD-7

CAS 138372-67-5

From $234

mCP

CAS 550378-78-4

From $169

PPT, PO15

CAS 1019842-99-9

From $338

2,4,6-tris(biphenyl-3-yl)-1,3,5-triazine (T2T)

CAS 1201800-83-0

From $429

26DCzPPy

CAS 1013405-24-7

From $325

CzSi

CAS 898546-82-2

From $325

m-MTDATA

CAS 124729-98-2

From $202

mCBP

CAS 342638-54-4

From $260

TAZ, 3-(Biphenyl-4-yl)-5-(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole

CAS 150405-69-9

From $228

3TPYMB

CAS 929203-02-1

From $234

tCP, 1,3,5-Tris(carbazol-9-yl)benzene

CAS 148044-07-9

From $169

35DCzPPy

CAS 1013405-25-8

Price $338

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

CAS 65181-78-4

Price $390

Poly(9-vinylcarbazole) (PVK)

CAS 25067-59-8

From $286

SPPO13

CAS 1234510-13-4

From $520

mSiTrz

CAS 2252416-90-1

From $299

Tris-PCz

CAS 1141757-83-6

From $247

BTB

CAS 266349-83-1

From $325

BCzPh

CAS 57102-62-2

From $325

PYD-2Cz (PYD2)

CAS 168127-49-9

From $416

Zn(BTZ)2

CAS 58280-31-2

Price $325

POSTF

CAS 1647050-25-6

From $494

mCPPO1

CAS 1296229-26-9

From $325

TCPZ

CAS 890148-68-2

From $429

PPF

CAS 911397-27-8

From $299

SimCP

CAS 850221-63-5

From $429

FATPA

CAS 1131007-94-7

From $286

CbBPCb

CAS 1469997-91-8

From $299

3N-T2T

CAS 939430-26-9

From $299

BCPO

CAS 1233407-28-7

From $338

BCBP

CAS 858131-70-1

From $312

CDBP

CAS 120260-01-7

From $312

UGH-2

CAS 40491-34-7 / 18856-08-1

From $325

BAlq

CAS 146162-54-1

Price $312

Resources and Support

Fluorescence and Phosphorescence

Fluorescence and phosphorescence are types of photoluminescence. Photoluminescence refers to radiative emissions where the absorbance of a photon is followed by the emission of a lower energy photon.

Photoluminescence

Photoluminescence happens when a material emits light after absorbing a photon from an external light source. Electrons in the material are excited into their higher energy states. As they relax, the electrons will then emit photons of a lower energy.There are several ways of categorizing photoluminescence.

phosphorescent organic light-emitting diodes

Introduction to PhOLEDs

In PhOLEDs, charge carriers are injected from the electrodes into the organic layers, where they recombine in the emissive layer to radiatively emit phosphorescence. Find out more.

OLED Testing Guide

This guide gives you an overview of what to consider when characterising an OLED, as well as tips for their measurement.