PTAA for OFET Applications

PTAA, HTL material used to improve charge extraction in OLED/OFET devices

Methyl or fluoro substituted poly(triarylamines) (PTAAs) are electron rich with diphenylamine as the the backbone and substituted phenyl as side chains. Substituted PTAAs are originally used as hole transport layer (HTL) materials in OLED/OFET devices to improve charge extractions. PTAA can also act as electron blocking layer to reduce the chances of electron–hole recombination and energy loss in electronic devices. Fluorinated PTAA, 1F-PTAA and 2F-PTAA, can effectively downshift of the HOMO levels of PTAA derivatives due to the electron deficiency of fluorine, resulting in an increase of VOC hence the power conversion efficiency (PCE) of the device.

Specifications

Name Batch number Mw Mn PDI MSDS	4-Fluoro PTAA PE10-338-12 6,000 g/mol 4,020 g/mol 1.5
Name Batch number Mw Mn PDI MSDS	Dimethyl PTAA PE3-298-27B 6,312 g/mol 4,390 g/mol 1.4
Name Batch number Mw Mn PDI MSDS	2,4 Difluoro PTAA PE-338-8 4,712 g/mol 3,504 g/mol 1.34