TBPe

CAS Number 80663-92-9

Dopant Materials, High Purity Sublimed Materials, Materials, Semiconducting Molecules, TADF Materials

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*	λ_max 412, 438 nm in THF
Fluorescence	λ_em 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 USB 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

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
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
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
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
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 MSDS sheet

Literature and Reviews

Electroluminescent Properties of Fully Substituted Ethylene Moieties, S. Kim et al., Mol. Cryst. Liq. Cryst., 458:1, 209-216 (2006); DOI: 10.1080/15421400600932371.
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.
High-efficiency organic light-emitting diodes with fluorescent emitters, H. Nakanotani et al., Nat. Commun., 5:4016 (2014); DOI: 10.1038/ncomms5016.

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.