Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

View All Documentation

906352

Sigma-Aldrich

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]

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
(C68H76C12O2S8)n
CAS Number:
2239295-71-5
UNSPSC Code:
12352101
NACRES:
NA.23

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

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.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Sorry, we don't have COAs for this product available online at this time.

If you need assistance, please contact Customer Support.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Fluorination vs. chlorination: a case study on high performance organic photovoltaic materials.
Zhang Y, et al.
Science China: Chemistry, 61(10), 1328-1337 (2018)
Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor.
Zhang S, et al.
Advanced Mat., 30(20) (2018)

Articles

Progress for High Performance Tandem Organic Solar Cells

Professor Chen (Nankai University, China) and his team explain the strategies behind their recent record-breaking organic solar cells, reaching a power conversion efficiency of 17.3%.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service