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806781

Sigma-Aldrich

TPBi

Synonym(s):

2,2′,2"-(1,3,5-Benzinetriyl)-tris(1-phenyl-1-H-benzimidazole)

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250 MG
CN¥3,252.96
1 G
CN¥1,979.51

CN¥3,252.96

Estimated to ship onApril 07, 2025Details

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250 MG
CN¥3,252.96
1 G
CN¥1,979.51

About This Item

Empirical Formula (Hill Notation):
C45H30N6
CAS Number:
192198-85-9
Molecular Weight:
654.76
MDL number:
MFCD08276433
UNSPSC Code:
12352103
PubChem Substance ID:
329769027
NACRES:
NA.23

CN¥3,252.96

Estimated to ship onApril 07, 2025Details

Request a Bulk Order

Assay

≥99.5% (HPLC)

Quality Level

100

form

powder

mp

272-277 °C

Orbital energy

HOMO 6.2 eV 
LUMO 2.7 eV 

OLED Device Performance

ITO/MoO3/NPB/Cz-BTPE/TPBi/LiF/Al (ref 2)

  • Color: blue
  • Max. Luminance: 9911 Cd/m2
  • Max. EQE: 1.9 %
  • Turn-On Voltage: 4.9 V

ITO/MoO3/NPB/Ph-BTPE/TPBi/LiF/Al
  • Color: blue
  • Max. Luminance: 6497 Cd/m2
  • Max. EQE: 1.9 %
  • Turn-On Voltage: 5.3 V

ITO/MoO3/NPB/isopro-BTPE/TPBi/LiF/Al(ref 2)
  • Color: blue
  • Max. Luminance: 1127 Cd/m2
  • Max. EQE: 1.7 %
  • Turn-On Voltage: 5.3 V

ITO/MoO3/NPB/methyl-BTPE/TPBi/LiF/Al (ref 2)
  • Color: blue
  • Max. Luminance: 1976 Cd/m2
  • Max. EQE: 1.3 %
  • Turn-On Voltage: 5.3 V

SMILES string

C1(C2=NC(C=CC=C3)=C3N2C4=CC=CC=C4)=CC(C5=NC(C=CC=C6)=C6N5C7=CC=CC=C7)=CC(C8=NC(C=CC=C9)=C9N8C%10=CC=CC=C%10)=C1

InChI

1S/C45H30N6/c1-4-16-34(17-5-1)49-40-25-13-10-22-37(40)46-43(49)31-28-32(44-47-38-23-11-14-26-41(38)50(44)35-18-6-2-7-19-35)30-33(29-31)45-48-39-24-12-15-27-42(39)51(45)36-20-8-3-9-21-36/h1-30H

InChI key

GEQBRULPNIVQPP-UHFFFAOYSA-N

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Show Differences

1 of 4

This Item
541435536512655201
Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] average Mn 40,000-70,000

541443

Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]

Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] average Mn 70,000-100,000

541435

Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]

Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]

536512

Poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene]

Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) high-conductivity grade, 3.0-4.0% in H2O

655201

Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)

description

Band gap: 2.3 eV

description

Band gap: 2.3 eV

description

Band gap: 2.3 eV

description

-

mol wt

average Mn 40,000-70,000

mol wt

average Mn 70,000-100,000

mol wt

-

mol wt

-

fluorescence

λex 493 nm; λem 554 nm in toluene

fluorescence

λex 495 nm; λem 554 nm in toluene

fluorescence

λex 493 nm; λem 554 nm in toluene

fluorescence

-

orbital energy

HOMO -5.3 eV 

orbital energy

HOMO -5.3 eV , LUMO -3 eV 

orbital energy

HOMO -5.3 eV , LUMO -3 eV 

orbital energy

-

OLED device performance

ITO/PEDOT:PSS/MEH-PPV/Al

  • Color: orange-red
  • Max. Luminance: 220 Cd/m2
  • Max. EQE: 0.3 %
  • Turn-On Voltage: 3.8 V

OLED device performance

ITO/PEDOT:PSS/MEH-PPV/Al

  • Color: orange-red
  • Max. Luminance: 220 Cd/m2
  • Max. EQE: 0.3 %
  • Turn-On Voltage: 3.8 V
, ITO/PEDOT:PSS/MEH-PPV/PBO/Al
  • Color: orange-red
  • Max. Luminance: 970 Cd/m2
  • Max. EQE: 1.9 %
  • Turn-On Voltage: 2.9 V
, ITO/PEDOT:PSS/MEH-PPV/PBZT/Al
  • Color: orange-red
  • Max. Luminance: 1400 Cd/m2
  • Max. EQE: 2.5 %
  • Turn-On Voltage: 2.8 V

OLED device performance

ITO/PEDOT:PSS/MEH-PPV/Al

  • Color: orange-red
  • Max. Luminance: 220 Cd/m2
  • Max. EQE: 0.3 %
  • Turn-On Voltage: 3.8 V
, ITO/PEDOT:PSS/MEH-PPV/PBO/Al
  • Color: orange-red
  • Max. Luminance: 970 Cd/m2
  • Max. EQE: 1.9 %
  • Turn-On Voltage: 2.9 V
, ITO/PEDOT:PSS/MEH-PPV/PBZT/Al
  • Color: orange-red
  • Max. Luminance: 1400 Cd/m2
  • Max. EQE: 2.5 %
  • Turn-On Voltage: 2.8 V

OLED device performance

-

General description

TPBi is an organic semiconductor that displays high electron mobility (3.3×10−5 cm2 V−1 s−1) and high glass transition temperature. It is widely used as an electron transport layer(ETL) in QLEDs and OLEDs, which is a cathode buffer layer in organic solar cells.[1]

The increase in power conversion efficiency of the device on the addition of TBPi is attributed to the following reasons:
  • Preventing exciton from quenching at the acceptor/cathode interface.
  • Acting as an optical spacer.
  • Forming a passivating layer.[2]

Application

TPBi can be used to fabricate an electron transport layer for organic-inorganic hybrid perovskite LEDs.[3]

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

  • Specification Sheet

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    Certificates of Analysis (COA)

    Lot/Batch Number
    MKCV8492
    MKCV1234
    MKCT5294
    MKCR8200
    MKCQ4453

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    Study on Electron Transport Characterization in TPBi Thin Films and OLED Application
    Yanping Wang, et al.
    The Journal of Physical Chemistry C, 125, 16753-16758 (2021)
    Efficient blue organic light-emitting diodes employing thermally activated delayed fluorescence
    Qisheng Z, et al.
    Nature Photonics, 8, 326-332 (2014)
    Semi-transparent organic-inorganic hybrid perovskite light-emitting diodes fabricated under high relative humidity
    Taejun Kim, et al.
    Solid-state electronics, 165, 107749-107749 (2020)
    Employing ~100% Excitons in OLEDs by Utilizing a Fluorescent Molecule with Hybridized Local and Charge-Transfer Excited State
    Weijun L, et al.
    Advances in Functional Materials, 24, 1609-1614 (2014)
    Largely blue-shifted emission through minor structural modifications: molecular design, synthesis, aggregation-induced emission and deep-blue OLED application
    Jing H, et al.
    Chemical Communications (Cambridge, England), 50, 2136-2138 (2014)
    View All Related Papers

    Articles

    Aggregation-induced Emission Luminogens for Non-doped Organic Light-emitting Diodes

    Organic Light-emitting Diodes (OLEDs) are solid-state devices that transform electrical energy into light. OLEDs are considered the next generation technology for high-resolution flexible displays and solid state lighting, attracting intense scientific and industrial interest.

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