DPVBi, 4,4 -bis(2,2 -diphenylvinyl)-1,1 -diphenyl, is a wide band gap small molecule semiconducting material, commonly used as a blue host-emitting material in OLEDs.

It has been reported that DPVBi can effectively manipulate the Schottky energy barrier between the ITO and the emitting layer, and thus significantly enhance hole-injection, current and luminance efficiencies of OLEDs, as well as their stability [1].

General Information

CAS number	142289-08-5
Chemical formula	C40H30
Molecular weight	510.67 g/mol
Absorption	λmax 351 nm (THF)
Fluorescence	λem 447 nm (THF)
HOMO/LUMO	HOMO = 5.9 eV, LUMO = 2.8 eV
Synonyms	4,4"-Bis(2,2-diphenylvinyl)biphenyl 4,4"-Bis(2,2-diphenylvinyl)-1,1"-diphenyl 4,4"-Bis(2,2-diphenylethenyl)-1,1"-biphenyl
Classification / Family	Hole-injection materials, Hole-transporting materials, Blue light-emitting materials, Host materials, Organic light-emitting diodes (OLEDs), Organic electronics

Product Details

Purity	Sublimed >99.0% (HPLC)
Melting point	207 °C (lit.)
Appearance	Yellow powder/crystals

Chemical Structure

Device Structure(s)

Device structure	ITO/CuPc/NPB/DPVBi:DCJTB/Alq/LiF/Al [2]
Colour	White
Max. Luminance	7,822 cd/m2
Max. Current Efficiency	2.45 cd/A
Max. Power Efficiency	1.75 lm W−1

Device structure	ITO/ NPB (70 nm)/DPVBi:BCzVBi (15 wt%, 15 nm)/ADN:BCzVBi (15% wt%, 15 nm)/BPhen (30 nm)/ Liq (2 nm)/Al (100 nm) [3]
Colour	Deep Blue
Max. Luminance	8,668 cd/m2
Max. Current Efficiency	5.16 cd/A

Device structure	ITO/MoO3 (5 nm)/ NPB (35 nm)/CBP (5 nm)/DPVBi (I) (10 nm)/CBP:Rubrene (4:1) (3 nm)/DPVBi (II) (30 nm)/CBP (HBL3) (2 nm)/BPhen (10 nm)/LiF/Al [4]
Colour	White
Max. Luminance	2,650 cd/m2
Max. Current Efficiency	4.6 cd/A

Device structure	ITO/NPB/DPVBi:BCzVBi-6%/MADN:DCM2-0.5%/Bphen/Liq/Al [6]
Colour	White
Max. Luminance	15,400 cd/m2
Max. Current Efficiency	6.19 cd/A

Device structure	ITO/TBADN:3 wt% DSA-Ph (27 nm)/DPVBi:5 wt% BCzVB (3 nm)/LiF/Al [7]
Colour	Blue
Max. Luminance	16,530
Max. Current Efficiency	9.77 cd/A
Max. Power Efficiency	5.68 lm W−1

Device structure	glass/Ag (100 nm)/ITO (90 nm)/2-TNATA (60 nm)/NPB (15 nm)/ DPVBi:DCJTB (1.2%, 30 nm)/Alq3 (20 nm)/Li (1.0 nm)/Al (2.0 nm)/Ag (20 nm)/ITO(63 nm)/SiO2 (42 nm) [8]
Colour	White
Max. Luminance	14,500 cd/m2
Max. Power Efficiency	1.4 lm W−1

Characterisation

MSDS Documentation

dPVBi MSDS sheet

Literature and Reviews

1. Enhanced Performance of Organic Light Emitting Device by Incorporating 4,4-Bis(2,2-diphenylvinyl)-1,1-Biphenyl as an Efficient Hole-Injection Nano-Layer, W. Yun et al., J. Nanosci. Nanotechnol., 13 (3), 2166-2170 (2013).
2. A white OLED based on DPVBi blue light emitting host and DCJTB red dopant, X. Zheng et al., Display, 24 (3), 121-124 (2003), doi:10.1016/j.displa.2003.09.004.
3. Highly efficient blue organic light-emitting diodes using dual emissive layers with host-dopant system, B. Lee et al., J. Photon. Energy. 3(1), 033598 (2013), doi:10.1117/1.JPE.3.033598.
4. Enhancing Color Purity and Stable Efficiency of White Organic Light Diodes by Using Hole-Blocking Layer, C-J. Huang et al., J. Nanomater., 915894, (2014), http://dx.doi.org/10.1155/2014/915894.
5. Efficient white organic light-emitting diodes based on a balanced split of the exciton-recombination zone using a graded mixed layer as an electron-blocking layer, C. K. Kim et al., J. Soc. Info. Display, 18 (1), 97-102 (2012).
6. High efficient white organic light-emitting diodes using BCzVBi as blue fluorescent dopant,Y. Kim et al., J Nanosci. Nanotechnol., 8(9), 4579-83 (2008).
7. Color tunability in multilayer OLEDs based on DCM and DPVBi as emitting materials, P. Petrova et al., J. Phys.: Conference Series 514, 012015 (2014), doi:10.1088/1742-6596/514/1/012015.
8. White top-emitting organic light-emitting diodes using one-emissive layer of the DCJTB doped DPVBi layer, M. Kim et al., Thin Solid Films 516, 3590–3594 (2008); doi:10.1016/j.tsf.2007.08.078.

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To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.

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