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Product Code M2117A1-250mg
Price $300 ex. VAT

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TBPe, a blue fluorescence emitter in OLED devices

Increases the efficiency of the electroluminescent devices by preventing the formation of exciplexes


2,5,8,11-Tetra-tert-butylperylene (TBPe), a family member of perylene, has been widely used as a blue fluorescence emitter in OLED devices.

With the introduction of four steric tert-butyl groups to the perylene, electroluminescent devices using TBPe as a dopant have the benefit of electroluminescent colour stability; this is due to a lower degree of molecular aggregation tendency in the non-planar perylene structure.

The steric hindrance of the side groups also prevents the formation of exciplex and charge trapping, leading to higher efficiency of the electroluminescent devices.

General Information

CAS number 80663-92-9
Chemical formula C36H44
Molecular weight 476.73 g/mol
Absorption* λmax 412, 438 nm in THF
Fluorescence λem 459, 480 nm in THF
HOMO/LUMO HOMO 5.25 eV, LUMO 1.84 eV [1]
Synonyms 2,5,8,11-Tetrakis(1,1-dimethylethyl)perylene, 2,5,8,11-Tetra-tert-butylperylene, TBP
Classification / Family Perylene derivatives, Blue fluorescence emitter, Light-emitting diodes, Organic electronics, TADF blue dopant materials, Sublimed materials.

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

Product Details

Purity Sublimed* >99.0% (HPLC)
Melting point TGA >220 °C (0.5% weight loss)
Appearance White powder/crystals

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

Chemical Structure

TBPe chemical structure
Chemical structure of TBPe

Device Structure(s)

Device structure ITO (120 nm)/PEDOT:PSS (60 nm)/mCP (30 nm)/CzAcSF:TBPe (25 nm)/TSPO1* (5 nm)/TPBi (30 nm)/LiF (1 nm)/Al (200 nm) [2]
Colour Blue blue light emitting device
Max Current Efficiency 23.7 cd/A 
Max EQE 15.4%
Max. Power Efficiency 23.4 lm W-1
Device structure ITO (120 nm)/PEDOT:PSS (60 nm)/mCP (30 nm)/CzAcSF:TBPe:TBRb (25 nm)/TSPO1* (5 nm)/TPBi (30 nm)/LiF (1 nm)/Al (200 nm) [2]
Colour White white light emitting device
Max Current Efficiency 35.1 cd/A 
Max EQE 14.0%
Max. Power Efficiency 36.2 lm W-1
Device structure ITO/a-NPB (35 nm)/mCP (10 nm)/1 wt%-TBPe:15wt%-ACRSA:DPEPO (15 nm)/DPEPO (8 nm)/TPBi (57 nm)/LiF (0.8 nm)/Al (100 nm) [3]
Colour Blue blue light emitting device
Max Current Efficiency 27 cd/A 
Max EQE 13.4%
Max. Power Efficiency 18 lm W-1
Device structure ITO (120 nm)/PEDOT:PSS (60 nm)/TAPC (10 nm)/TCTA (10 nm)/mCP (10 nm)/DPEPO:50% CzAcSF:0.1% TBPe (25 nm)/TSPO1* (5 nm)/TPBI (30 nm)/LiF (1 nm)/Al (200 nm) [4]
Colour Blue blue light emitting device
Max Current Efficiency 29.8 cd/A 
Max EQE 18.1
Max. Power Efficiency 31.2 lm W-1
*For chemical structure information, please refer to the cited references.

Pricing

 Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2117A1 250 mg £240
Sublimed (>99.0% purity) M2117A1 500 mg £400
Sublimed (>99.0% purity) M2117A1 1 g £680

MSDS Documentation

TBPe MSDSTBPe MSDS sheet

Literature and Reviews

  1. Electroluminescent Properties of Fully Substituted Ethylene Moieties, S. Kim et al., Mol. Cryst. Liq. Cryst., 458:1, 209-216 (2006); DOI: 10.1080/15421400600932371.
  2. Host Engineering for High Quantum Effi ciency Blue and White Fluorescent Organic Light-Emitting Diode, W. Song et al., Adv. Mater., 27, 4358–4363 (2015); DOI: 10.1002/adma.201501019.
  3. High-efficiency organic light-emitting diodes with fluorescent emitters, H. Nakanotani et al., Nat. Commun., 5:4016 (2014); DOI: 10.1038/ncomms5016.
  4. High efficiency blue fluorescent organic light-emitting diodes using a conventional blue fluorescent emitter, I-H. Lee et al., J. Mater. Chem. C, 3, 8834 (2015); DOI: 10.1039/c5tc01626f.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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