Silole-spaced triarylamine derivatives as highly efficient organic sensitizers in dye-sensitized solar cells (DSSCs)
作者:Sangwon Ko、Hyunbong Choi、Moon-Sung Kang、Hyonseok Hwang、Heesun Ji、Jinho Kim、Jaejung Ko、Youngjin Kang
DOI:10.1039/b926163j
日期:——
Three new organic dyes that contain the dithienosilole (DTS) moiety as spacer have been synthesized and their photophysical/electrochemical properties, theoretical calculation and dye-sensitized solar cell (DSSC) performance have been investigated. The overall conversion efficiencies for DSSCs based on these dyes range from 6.73 to 7.50%, comparable to a (3–5′-[N,N-bis(9,9-dimethylfluorene-2-yl)phenyl]2,2′-bithiophene-5-yl}-2-cyanoacrylic acid (JK-2)-sensitized device (7.63%), fabricated and measured under the same experimental conditions. The DSSC constructed from one of the three compounds shows a higher open-circuit voltage (VOC) compared to those of the other two dye sensitized solar cells due to an increased electron lifetime (τe) in the conduction band of TiO2.
FLUORESCENT DYE AND PREPARATION METHOD AND USE THEREOF
申请人:EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
公开号:US20190241584A1
公开(公告)日:2019-08-08
Provided are a fluorescent dye and a preparation process and use thereof. The fluorescent dye is able to emit a long wavelength, is sensitive and specific to viscosity, and is used for a wide range of purposes, such as viscosity testing, fluorescent labeling, quantification or detection of proteins, enzymes or nucleic acids. In addition, it can be used as a fluorescent-activated probe.