1404053-06-0

Upstream product

• 219987-44-7 N-{4-[2-(4-bromophenyl)vinyl]phenyl}-diphenylamine 
• 73183-34-3 bis(pinacol)diborane 
• 2039-82-9 1-bromo-4-ethenyl-benzene 
• 38257-52-2 4-(N,N-diphenylamino)iodobenzene 

Downstream Products

• 1404053-08-2 4,7-bis{5-{4-{2-[4-(N,N-diphenylamino)phenyl]-1-ethenyl}phenyl}-2-thienyl}-5,6,-bis(otcyloxy)-2,1,3-benzothiadiazole 
• 1607819-44-2 C₈₂H₇₈N₄O₂S₂ 

Relevant academic research and scientific papers

Linkage effects of linear D-π-A-π-D type diketopyrrolopyrrole- triphenylamine based solution-processable organic small molecule photovoltaic materials

Four novel D-π-A-π-D-type small molecules (SMs) were synthesized and their π-linkage effects were investigated. Among them, SM2 with vinylene as the π-linkage exhibited better molecular coplanarity, reaching a relatively higher power conversion efficiency (PCE) of 3.76%. SM3 and SM4 with acetylene and acrylonitrile as π-linkages exhibited relatively higher open-circuit voltages (VOC) of 0.93 V and 0.90 V, respectively, owing to their deep-lying HOMO levels. These results gave an important guide for developing new materials in solution-processed small molecule solar cells.

D-π-A-π-D type benzothiadiazole-triphenylamine based small molecules containing cyano on the π-bridge for solution-processed organic solar cells with high open-circuit voltage

Two novel D-π-A-π-D structured small molecules composed of benzothiadiazole and triphenylamine were designed and synthesized. BDCTBT with cyano on the π-bridge exhibited a deep HOMO energy level, resulting in an impressive VOC of up to 1.04 V with a PCE of 3.85%, while non-cyano substituted BDETBT yielded a VOC of 0.94 V and a PCE of 1.99%.