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745928

Sigma-Aldrich

PDTSTPD

Synonym(s):

Poly[(5,6-dihydro-5-octyl-4,6-dioxo-4H-thieno[3,4-c]pyrrole-1,3-diyl)[4,4-bis(2-ethylhexyl)-4H-silolo[3,2-b:4,5-b′;]dithiophene-2,6-diyl]]

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About This Item

Linear Formula:
(C38H53NO2S3Si)n
CAS Number:
1279109-93-1
UNSPSC Code:
12352103

description

Band gap: 1.8 eV

form

powder

mol wt

average Mn 7,000-35,000 by GPC

λmax

670 nm (thin film)

Orbital energy

HOMO -5.6 eV 
LUMO -3.8 eV 

semiconductor properties

P-type (mobility=1.0 x 10-4 cm2/V·s) (OFET)

General description

HOMO: -5.6 eV
LUMO: -3.8 eV
UV absorption: λmax = 670 nm; Eg = 1.73 eV
Solubility: This polymer can be dissolved easily in chloroform, chlorobenzene, dichlorobenzene

Application

High-Efficiency Organic Solar Cells (OPVs)
Power conversion efficiency (PCE): 7.3%
Open circuit voltage (Voc): 0.88 V
Short circuit current density (Jsc): 12.2 mA/cm2
Fill factor (FF): 0.69

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Precautionary Statements

P261 - P305 + P351 + P338

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKBR9503V

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Ta-Ya Chu et al.
Journal of the American Chemical Society, 133(12), 4250-4253 (2011-03-08)
A new alternating copolymer of dithienosilole and thienopyrrole-4,6-dione (PDTSTPD) possesses both a low optical bandgap (1.73 eV) and a deep highest occupied molecular orbital energy level (5.57 eV). The introduction of branched alkyl chains to the dithienosilole unit was found
Xugang Guo et al.
Journal of the American Chemical Society, 134(44), 18427-18439 (2012-10-04)
Rational creation of polymeric semiconductors from novel building blocks is critical to polymer solar cell (PSC) development. We report a new series of bithiopheneimide-based donor-acceptor copolymers for bulk-heterojunction (BHJ) PSCs. The bithiopheneimide electron-deficiency compresses polymer bandgaps and lowers the HOMOs--essential

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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%.

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