Synthesis and photovoltaic properties of new branchlike organic dyes containing benzothiadiazole or triphenylamine-linked consecutive vinylenes units
摘要:
Two novel branchlike organic dyes (WD1 and FD1) based on 4,7-bis-(4-hexylthiophen-2-yl)benzo[1,2,5]thiadiazole (DTBT) and triphenylamine, containing vinylenes and consecutive vinylenes as pi-conjugated unit, respectively, were designed and synthesized for dye-sensitized solar cells (DSSCs). The photophysical, electrochemical and photovoltaic properties of the dyes were investigated. The introduction of consecutive vinylenes into two branches of the FD1 molecule leads to a remarkably red-shifted absorption and higher molar extinction coefficient compared with the reference dye D2. The DSSCs based on FD1 and WD1 dyes exhibited the power conversion efficiency of 7.04% and 2.18% under AM1.5G irradiation (100 mW/cm(2)). (c) 2013 Elsevier Ltd. All rights reserved.
Synthesis and photovoltaic properties of new branchlike organic dyes containing benzothiadiazole or triphenylamine-linked consecutive vinylenes units
摘要:
Two novel branchlike organic dyes (WD1 and FD1) based on 4,7-bis-(4-hexylthiophen-2-yl)benzo[1,2,5]thiadiazole (DTBT) and triphenylamine, containing vinylenes and consecutive vinylenes as pi-conjugated unit, respectively, were designed and synthesized for dye-sensitized solar cells (DSSCs). The photophysical, electrochemical and photovoltaic properties of the dyes were investigated. The introduction of consecutive vinylenes into two branches of the FD1 molecule leads to a remarkably red-shifted absorption and higher molar extinction coefficient compared with the reference dye D2. The DSSCs based on FD1 and WD1 dyes exhibited the power conversion efficiency of 7.04% and 2.18% under AM1.5G irradiation (100 mW/cm(2)). (c) 2013 Elsevier Ltd. All rights reserved.
Electroluminescent device containing a butadiene derivative
申请人:Helber J. Margaret
公开号:US20070141388A1
公开(公告)日:2007-06-21
An OLED device comprises a cathode, an anode and a light-emitting layer therebetween, wherein the light-emitting layer comprises a host containing an anthracene nucleus and a light-emitting material comprising a 1,3-butadiene nucleus, wherein the butadiene nucleus is substituted in the 1 and 4 positions with independently selected aromatic groups, and wherein at least one of said aromatic groups is further substituted with an amino group, and wherein said amino group is further substituted with two independently selected aryl or heteroaryl groups.
Synthesis and photovoltaic properties of new branchlike organic dyes containing benzothiadiazole or triphenylamine-linked consecutive vinylenes units
作者:Changwei Wang、Yan Fang、Zhencai Cao、Hui Huang、Bin Zhao、Haohao Li、Ying Liu、Songting Tan
DOI:10.1016/j.dyepig.2013.01.009
日期:2013.6
Two novel branchlike organic dyes (WD1 and FD1) based on 4,7-bis-(4-hexylthiophen-2-yl)benzo[1,2,5]thiadiazole (DTBT) and triphenylamine, containing vinylenes and consecutive vinylenes as pi-conjugated unit, respectively, were designed and synthesized for dye-sensitized solar cells (DSSCs). The photophysical, electrochemical and photovoltaic properties of the dyes were investigated. The introduction of consecutive vinylenes into two branches of the FD1 molecule leads to a remarkably red-shifted absorption and higher molar extinction coefficient compared with the reference dye D2. The DSSCs based on FD1 and WD1 dyes exhibited the power conversion efficiency of 7.04% and 2.18% under AM1.5G irradiation (100 mW/cm(2)). (c) 2013 Elsevier Ltd. All rights reserved.