772410

PTB7

average M_w 80,000-200,000, PDI ≤3.0

• Synonym(s): Poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl})
• Empirical Formula (Hill Notation): (C₄₁H₅₃FO₄S₄)_n
• CAS Number: 1266549-31-8
• NACRES: NA.23

Properties

• Quality Level: 100
• description: Band gap: 1.84 eV
• mol wt: average M_w 80,000-200,000
• solubility: chlorobenzene: soluble; chloroform: soluble; dichlorobenzene: soluble
• λmax: 680 nm (thin film)
• Orbital energy: HOMO -5.15 eV ; LUMO -3.31 eV
• Mw/Mn: 2.4 +/- 0.6
• PDI: ≤3.0

Description

General description

PTB7 is a semiconducting polymer used in organic photovoltaics with an energy efficiency of 9.15%. It can act as an electron donor with narrow optical band gaps and excellent π-π conjugation while forming a nanocomposite with fullerenes.

Application

It is majorly used as an active layer that enhances the overall performance by increasing the light absorption and improving the electron mobility of polymeric solar cells (PSCs).

High-Efficiency Organic Solar Cells (OPVs)
OPV Device Structure: ITO/PEDOT:PSS/PTB7 :PC71BM/Ca/Al

• JSC = 14.9 mA/cm2
• VOC = 0.75 V
• FF = 0.69
• PCE = 7.4%

Packaging

100 mg in glass insert

Safety Information

• RIDADR: NONH for all modes of transport
• WGK Germany: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable