1260685-66-2

Basic information

• Product Name: PDPP-TT
• Synonyms: PDPP-TT;Poly[[2,3,5,6-tetrahydro-2,5-bis(2-octyldodecyl)-3,6-dioxopyrrolo[3,4-c]pyrrole-1,4-diyl]-2,5-thiophenediylthieno[3,2-b]thiophene-2,5-diyl-2,5-thiophenediyl];DPP-DTT
• CAS NO: 1260685-66-2
• Molecular Weight: 0
• EINECS: -0
• Mol File: 1260685-66-2.mol

Chemical Properties

• Appearance: /
• Solubility: Chloroform, chlorobenzene and dichlorobenzene
• CAS DataBase Reference: PDPP-TT(CAS DataBase Reference)
• NIST Chemistry Reference: PDPP-TT(1260685-66-2)
• EPA Substance Registry System: PDPP-TT(1260685-66-2)

Safety Data

• Hazardous Substances Data: 1260685-66-2(Hazardous Substances Data)

Usage

Uses

Used in Electronics Industry:
PDPP-TT is used as a semiconductor material for [application reason] its high mobility and p-type characteristics, which are essential for the efficient functioning of OFET devices.
Used in Sensing Applications:
PDPP-TT is used as a sensing material for [application reason] its ability to interact with various target molecules, making it a valuable component in the development of chemical and biological sensors.
Used in Photovoltaic Applications:
PDPP-TT is used as a photovoltaic material for [application reason] its potential to improve the efficiency of solar cells by enhancing charge transport and light absorption properties.

Classification

Bithiophene, Thienothiophene, Organic semiconducting materials, Low band-gap polymers, Organic photovoltaics, Polymer solar cells, OFETs.

OFET and Sensing Applications

The exceptional high mobility of this polymer of up to 10 cm2/Vs [2] via solution-processed techniques, combined with its intrinsic air stability (even during annealing) has made PDPP2T-TT-OD of significant interest for OFET and sensing purposes. While the highest mobilities require exceptional molecular weights of around 500 kD (and with commensurate solubility issues), high mobilities in the region of 1-3 cm2/Vs can still be achieved with good solution-processing at around 250 kD. Example OFET characteristics for DPP-DTT (M313) solution processed from chlorobenzene on a 300 nm SiO2 substrate treated with OTS. Output characteristic (top left), transfer curves (top right), mobility fitting (bottom left) and calculated mobility.

Photovoltaic Applications

Although shown as a promising hole-mobility polymer for OFETs, when used as the donor material in a bulk heterojunction photovoltaic (with PC70BM as the acceptor), initial efficiencies of 1.6% were achieved for DPP-DTT. The low device metrics were attributed to poor film morphology. However, a higher efficiency of 6.9% was achieved by using thicker film (220 nm). PDPP2T-TT-OD has also recently been used successfully as an active-layer dopant material in PTB7-based devices. An improvement in device performance was observed, with average efficiencies increasing from 7.6% to 8.3% when the dopant concentration of DPP-DTT was 1 wt%. The use of DPP-DTT as a high-mobility hole-interface layer for perovskite hybrid devices has also been investigated.