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906352 Sigma-Aldrich

PBDB-T-2Cl

Synonym: OS0139, PCE 139, PM 7, Poly[[4,8-bis[5-(2-ethylhexyl)-4-chloro-2-thienyl]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl]-2,5-thiophenediyl[5,7-bis(2-ethylhexyl)-4,8-dioxo-4H,8H-benzo[1,2-c:4,5-c′]dithiophene-1,3-diyl]-2,5-thiophenediyl]

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Properties

Related Categories Donor Materials, Materials Science, Organic Field Effect Transistor (OFET) Materials, Organic Photovoltaic (OPV) Materials, Organic and Printed Electronics,
description   Band gap: 1.95 eV
  Solubility:Soluble in 1,2-Dichlorobenzene
form   particles
mol wt   50,000-100,000 g/mol by GPC
color   Fine
solubility   chlorobenzene: soluble
  chloroform: soluble
Orbital energy   HOMO -5.52 eV 
  LUMO -3.57 eV 
PDI   2‑4

Description

Application

High-Efficiency Organic Solar Cells (OPVs)
Polymeric donor material
LUMO=−3.57 eV
HOMO=−5.32 eV

OPV Device Performance :
PBDB-T-2Cl:IT-4F
Voc= 0.86V
Jsc= 21.46 mA/cm2
FF= 0.75
PCE=13.9%

PBDB-T-2Cl (or PM7) is a wide bandgap polymer donor (n-type semiconductor) containing chlorinated thienyl benzodithiophene (BDT-2Cl) used in high performance polymer solar cells (PSCs). PBDB-T-2Cl-based devices exhibit higher open circuit voltage (Voc) than the PBDB-T-2F-based devices, due to lower molecular energy levels of PBDB-T-2Cl, and leading to an outstanding power conversion efficiency of over 14%.
In general, chlorination is more effective than fluorination in downshifting the molecular energy levels and broadening the absorption spectra.

Safety & Documentation

Safety Information

WGK Germany 
WGK 3
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles

Articles

Progress for High Performance Tandem Organic Solar Cells

The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China State...
Keywords: Absorption, Nucleic acid annealing, Polymer science, Recombination, Renewable energy, Semiconductor, Separation, Solar cells

Peer-Reviewed Papers
15

References

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