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DPVBi

chemical structure of dpvbi
Product Code M431
Price $285.00 ex. VAT
$ USD

DPVBi, a blue host-emitting material in OLEDs

Enhances hole-injection, current and luminance efficiencies of OLEDs

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

* Measurable with an optical spectrometer, see our spectrometer application notes.

Product Details

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

* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials for OLED devices.

Chemical Structure

dPVBi chemical structure
Chemical structure of 4,4 -bis(2,2 -diphenylvinyl)-1,1 -diphenyl (dPVBi)

Device Structure(s)

Device structure

 ITO/CuPc/NPB/DPVBi:DCJTB/Alq/LiF/Al [2]
Colour White   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   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   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   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   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   white
Max. Luminance  14,500 cd/m2
Max. Power Efficiency  1.4 lm W−1

Characterisation

hplc of dpvbi
HPLC trace of 4,4 -bis(2,2 -diphenylvinyl)-1,1 -diphenyl (dPVBi).

MSDS Documentation

dPVBi MSDSdPVBi 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.

To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.

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