188397-25-3

Upstream product

• 20441-06-9 N,N'-di(4''-methylphenyl)-N,N'-diphenyl-1,1'-biphenyl-4,4'-diamine 
• 68-12-2 N,N-dimethyl-formamide 
• 624-31-7 4-tolyl iodide 
• 531-91-9 N,N'-diphenyl-p-phenylenediamine 

Downstream Products

• 194354-29-5 4-[N-(4-hydroxymethylphenyl)-N-(4-methylphenyl)amino]-4'[N-phenyl-N-(4-methylphenyl)amino]biphenyl 
• 443926-31-6 4-[N-(4-methacryloyloxymethylphenyl)-N-(4-methylphenyl)amino]-4'[N-phenyl-N-(4-methylphenyl)amino]biphenyl 

Relevant academic research and scientific papers

Energy level tuning of TPB -based hole-transporting materials for highly efficient perovskite solar cells

Two TPB-based HTMs were synthesized and their energy levels were tuned to match with perovskite by introducing electron-donating groups asymmetrically. The TPBC based doping-free perovskite solar cell afforded an impressive PCE of 13.10% under AM 1.5G ill

Photo-crosslinkable polymers as hole-transport materials for organic light-emitting diodes

A bis(diarylamino)biphenyl-functionalised methacrylate has been synthesised and polymerised to give a hole-transport polymer; copolymerisation with a chalcone- or cinnamate-functionalised methacrylate affords photocrosslinkable hole-transport polymers that become insoluble upon exposure to ultra-violet irradiation. Organic light-emitting diodes (OLEDs) were fabricated based on both crosslinked and non-crosslinked hole-transport polymers, and the performances of the devices were evaluated.