4CzTPN-tBu, an orange dopant material in TADF devices

Available online in sensible quantities for priority dispatch, CAS No. 2153433-46-4, 2,3,5,6-tetrakis(3,6-di-tert-butylcarbazol-9-yl)-1,4-dicyanobenzene

2,3,5,6-tetrakis(3,6-di-tert-butylcarbazol-9-yl)-1,4-dicyanobenzene (4CzTPN-tBu) is the t-butylated derivative of 4CzTPN and it is sterically hindered with eight bulky tert-butyl peripheral end groups. Also due to the tert-butyl peripheral end groups, it becomes more soluble in most of the common organic solvents which makes all solution processing device possible.

4CzTPN-tBu as orange emitting layer, when blended in sky-blue delayed fluorescence molecule (4-(spiro[acridine-9,9’-fluoren]−10-yl)phenyl)(9-(3,5-di(carbazol-9-yl)phenyl)carbazol-3-yl)methanone (TCP-BP-SFAC) host, achieved record high power efficiency (PE) of 130.7 lm W-1, due to the balanced ambipolar transportation and high solid-state efficiency of TCP-BP-SFAC, and the effectively alleviated exciton quenching caused by the electron-trapping effect of 4CzTPN-tBu [1].

4CzTPN-tBu is an isomer to 4CzPN-tBu and 4CzIPN-tBu.

General Information

Chemical Structure

Product Details

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.

Device Structure

Device Structure	ITO/HATCN (5 nm)/TAPC (50 nm)/TcTa (5 nm)/mCP (5 nm)/TCP-BP-SFAC (9 nm)/1 wt% 4CzTPNBu: TCP-BP-SFAC (5 nm)/TCP-BP-SFAC (6 nm)/PPF (5 nm)/TmPyPB (40 nm)/LiF (1 nm)/Al [1]
Colour	White
Max. Current Efficiency	104.2 cd/A
Max. EQE	31.1%
Max. Power Efficiency	130.7 Im/W

Device Structure	ITO/MoO3/NPB/mCP/PADPO:DMAC-DPS:4CzTPN-Bu/PADPO/Bphen/LiF/Al [2]
Colour	White
Max. Current Efficiency	63.7 cd/A
Max. EQE	20.3 %
Max. Power Efficiency	67.8 Im/W

Device structure	ITO/HATCN/TAPC/DBP:TCTA/4CzTPNBu:BDMAC-XT:CBP/TCTA/DCP-BP-DPAC:PPF/PPF/TmPyPB/LiF/Al [3]
Colour	White
Max. Current Efficiency	53.3 cd/A
Max. EQE	23.0 %
Max. Power Efficiency	64.4 Im/W