906352

PBDB-T-2Cl

• Synonym(s): 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]
• Linear Formula: (C₆₈H₇₆C₁₂O₂S₈)_n
• CAS Number: 2239295-71-5
• UNSPSC Code: 12352101
• NACRES: NA.23

Properties

• 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 Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable