Stepwise Unidirectional Synthesis of Oligo Phenylene Vinylenes with a Series of Monomers. Use in Plastic Solar Cells
摘要:
Four new monomers for directional stepwise synthesis of oligophenylenevinylenes (OPVs) (4-{2[4-(5,5-dimethyl [1,31 dioxan-2-yl)-2,5-dipropoxyphenyl] vinyl }benzyl)phosphonic acid diethyl ester, (5-{2- [4-(5,5-dimethyl [1,31 dioxan-2-yl)-2,5-dipropylphenyl] vinyl }thiophene-2-yl-methyl)phosphonic acid diethyl ester, (5-{2-[4-(5,5-dimethyl[1,3]dioxan-2-yl)-2,5-dipropoxyphenyl]vinyl}thiophene-2-yl-methyl)phosphonic acid diethyl ester, and (7-{2-[4-(5,5-dimethyl[1,3]dioxan-2-yl)-2,5-dipropylphenyl]-vinyl}benzo[1,2,5]thiadiazol-4-ylmethyl)phosphonic acid diethyl ester have been prepared. Trimeric OPVs were then synthesized and tested as active materials in photovoltaic cells. Conversion efficiencies in the range of 0.5-1% were obtained in blends with the soluble C-60 derivative PCBM. A terpyridine end-functionalized trimer and a heterotrimer with a mixed composition of monomers were also prepared.
单低聚物p的新的逐步定向合成路线已经开发了-亚苯基亚乙烯基(OPV)。反应顺序的第一步是官能化的苯甲醛与一种新的单体的缩合,该单体的一个末端具有甲基膦酸酯基,而在乙二苯核心的另一端具有乙缩醛保护的醛。然后,通过先前的醛封端的OPV片段与单体的交替反应和缩醛的脱保护,逐步进行低聚。因此,已经制备了具有3、5、7、9和11个亚苯基亚乙烯基单元的一系列OPV,其一端具有给电子甲氧基,而另一端具有受电子醛基。还制备了一些实例,其中二甲基氨基取代了甲氧基。然后将具有七个亚苯基亚乙烯基单元的低聚物在醛位置进一步衍生化,以生成一系列具有从强电子接受硝基苯基到供电电子甲氧基苯基的取代基的一系列OPV。用合成的OPV作为光敏层组装光伏电池。在模拟阳光下(AM1.5)进行照明会产生短路电流(I sc)在0.015-0.5 mA cm - 2的范围内,典型的开路电压(V oc)为0.4-0.8V。获得的最大效率为〜0
Stepwise Unidirectional Synthesis of Oligo Phenylene Vinylenes with a Series of Monomers. Use in Plastic Solar Cells
作者:Mikkel Jørgensen、Frederik C. Krebs
DOI:10.1021/jo0506783
日期:2005.7.1
Four new monomers for directional stepwise synthesis of oligophenylenevinylenes (OPVs) (4-2[4-(5,5-dimethyl [1,31 dioxan-2-yl)-2,5-dipropoxyphenyl] vinyl }benzyl)phosphonic acid diethyl ester, (5-2- [4-(5,5-dimethyl [1,31 dioxan-2-yl)-2,5-dipropylphenyl] vinyl }thiophene-2-yl-methyl)phosphonic acid diethyl ester, (5-2-[4-(5,5-dimethyl[1,3]dioxan-2-yl)-2,5-dipropoxyphenyl]vinyl}thiophene-2-yl-methyl)phosphonic acid diethyl ester, and (7-2-[4-(5,5-dimethyl[1,3]dioxan-2-yl)-2,5-dipropylphenyl]-vinyl}benzo[1,2,5]thiadiazol-4-ylmethyl)phosphonic acid diethyl ester have been prepared. Trimeric OPVs were then synthesized and tested as active materials in photovoltaic cells. Conversion efficiencies in the range of 0.5-1% were obtained in blends with the soluble C-60 derivative PCBM. A terpyridine end-functionalized trimer and a heterotrimer with a mixed composition of monomers were also prepared.
Stepwise and Directional Synthesis of End-Functionalized Single-Oligomer OPVs and Their Application in Organic Solar Cells
作者:Mikkel Jørgensen、Frederik C. Krebs
DOI:10.1021/jo049111x
日期:2004.10.1
p-phenylenevinylenes (OPVs) has been developed. The first step in the reaction sequence is the condensation of a functionalized benzaldehyde with a novel monomer having a methyl phosphonate ester group in one end and an acetal-protected aldehyde at the other end of a stilbene core. Oligomerization then proceeds stepwise by alternating reaction of the previous aldehyde-terminated OPV fragment with the monomer
单低聚物p的新的逐步定向合成路线已经开发了-亚苯基亚乙烯基(OPV)。反应顺序的第一步是官能化的苯甲醛与一种新的单体的缩合,该单体的一个末端具有甲基膦酸酯基,而在乙二苯核心的另一端具有乙缩醛保护的醛。然后,通过先前的醛封端的OPV片段与单体的交替反应和缩醛的脱保护,逐步进行低聚。因此,已经制备了具有3、5、7、9和11个亚苯基亚乙烯基单元的一系列OPV,其一端具有给电子甲氧基,而另一端具有受电子醛基。还制备了一些实例,其中二甲基氨基取代了甲氧基。然后将具有七个亚苯基亚乙烯基单元的低聚物在醛位置进一步衍生化,以生成一系列具有从强电子接受硝基苯基到供电电子甲氧基苯基的取代基的一系列OPV。用合成的OPV作为光敏层组装光伏电池。在模拟阳光下(AM1.5)进行照明会产生短路电流(I sc)在0.015-0.5 mA cm - 2的范围内,典型的开路电压(V oc)为0.4-0.8V。获得的最大效率为〜0