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Product Code M411-1g
Price $313 ex. VAT

Zn(BTZ)2, highly efficient electroluminescent material and ETL material for OLEDs

High-purity (>99.0%) and available online for priority dispatch

Bis(2-(2-hydroxyphenyl)benzothiazolate) zinc (II), Zn(BTZ)2, is one of the most studied high efficient electroluminescent material. It has also been widely used as an excellent electron transporting materials in OLEDs [1].

Zn(BTZ)exhibits an unusual broad electroluminescent (EL) emission and for this reason, a single-emitting component for white light emitting diodes can be fabricated by using Zn(BTZ)2 as emitting layer material [2]. It has also been reported that with an insertion of rubrene layer, the purity of the white light emitting of Zn(BTZ)can be improved [3].

General Information

CAS number 58280-31-2
Chemical formula C26H16N2O2S2Zn
Molecular weight 517.94 g/mol
Absorption λmax 287,334 nm (in CH2Cl2)
Fluorescence λem 458 nm (in CH2Cl2)
HOMO/LUMO HOMO = 5.41 eV, LUMO = 2.65 eV
  • Zn(BTZ)2
  • Bis[2-(2-benzothiazolyl-N3)phenolato-O]zinc
  • Bis(2-(2-hydroxyphenyl)benzothiazolate)zinc
  • Bis[2-(2-hydroxyphenyl)benzothiazolato]zinc(II)
  • Bis[2-(2-benzothiazoly)phenolato]zinc(II)
Classification / Family Organometallic, OLEDs, White light emitter, Electron transport layer material (ETL), Materials science.

Product Details

Purity Sublimed* >99.0%
Melting point 305-310 °C (lit.)
Color Light Yellow Powder

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

Chemical Structure

ZN(BTZ)2 chemical structure
Chemical Structure of Bis(2-(2-hydroxyphenyl)benzothiazolate)zinc, Zn(BTZ)2

Device Structure(s)

Device structure ITO/TPD (50 nm)/Zn(BTZ)2(50 nm)/MgIn (200 nm) [4]
Colour Greenish-White white light emitting device
Max. Luminance 10,190 cd/m2
Max. Power Efficiency 0.89 lm W−1
Device structure ITO/2T-NATA (20 nm)/NPB (60 nm)/Zn(BTZ)2:Ir(DBQ)2(acac) (80 nm)/Alq3 (70 nm)/LiF (1nm)/Al (200 nm) [5]
Color Red red light emitting device
Max. Luminance 25,000 cd/m2
Max. Current Efficiency 12 cd/A
Device structure ITO/PVK:TPD (30 nm)/Zn(BTZ)2:0.05 wt.% Rubrene (50 nm)/Al (100 nm) [6]
Colour White white light emitting device
Max. EQE 0.63%
Max. Luminance 4,048 cd/m2
Max. Current Efficiency 4.05 cd/A
Device structure ITO/NPB/CBP:3 wt%TBPe:1 wt%rubrene/Zn(BTZ)2:5 wt%Ir(piq)2(acac)/Zn(BTZ)2/Mg:Ag [7]
Colour White white light emitting device
Max. EQE 2.4%
Max. Luminance 23,000 cd/m2


hplc trace of znbtz2
HPLC trace of Bis(2-(2-hydroxyphenyl)benzothiazolate)zinc, Zn(BTZ)2.

MSDS Documentation

Zn(BTZ)2 MSDSZn(BTZ)2 MSDS sheet

Literature and Reviews

  1. Structures, Electronic States, and Electroluminescent Properties of a Zinc(II) 2-(2-Hydroxyphenyl)benzothiazolate Complex, G. Yu et al., J. Am. Chem. Soc., 125 (48), 14816–14824 (2003).
  2. Charge Carrier Transporting, Photoluminescent, and Electroluminescent Properties of Zinc(II)-2-(2-hydroxyphenyl)benzothiazolate Complex, X. Xu, Chem. Mater.,19 (7), 1740–1748 (2007), DOI: 10.1021/cm062960b.
  3. Effect of inserting of thin Rubrene layer on performance of Organic Light-Emitting Diodes based on Zn(BTZ)2, R. L. Tomova et al., J. Phys.: Conf. Ser., 253, 012048 (2010), doi:10.1088/1742-6596/253/1/012048.
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