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About This Item
Linear Formula:
(C49H57FO2S6)n
CAS Number:
MDL number:
UNSPSC Code:
12352103
NACRES:
NA.23
description
Band gap: 1.57 eV
Shiny, purple, fiber-like solid
Quality Level
form
solid
mol wt
>145,000
solubility
chlorobenzene: soluble
dichlorobenzene: soluble
orbital energy
HOMO -5.38 eV
LUMO -3.81 eV
PDI
2.2
Related Categories
General description
Poly([2,6′-4,8-di(5-ethylhexylthienyl)benzo[1,2-b;3,3-b]dithiophene]{3-fluoro-2[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl}) (PTB7-Th) is a semiconducting polymer with a narrow band gap of 1.59 eV and an absorption peak at 780 nm. The devices fabricated from PTB7-Th have been shown to have higher output voltage and short circuit current density than PTB7.
Application
High-Efficiency Organic Solar Cells (OPVs)
OPV Device Structure: ITO/PEDOT:PSS/Polymer:PC71BM/ Al
OPV Device Structure: ITO/PEDOT:PSS/Polymer:PC71BM/ Al
- JSC = 19.8 mA/cm2 \
- VOC = 0.79 V
- FF = 0.65
- PCE = 10.12%
PTB7-Th is mainly used as an active layer in organic solar cells (OSCs). It forms a blend with different acceptor materials which include PC71BM, ICBA, and PCBM to potentially improve the power conversion efficiency (PCE) of the OSCs.
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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