据报道,一系列新的高性能荧光团称为Keio Fluors(KFL),其基于硼二吡咯亚甲基(BODIPY)。KFL染料涵盖了从黄色(547 nm)到近红外(NIR,738 nm)区域的宽光谱范围,并且仅基于简单的分子修饰就可以轻松,巧妙地控制其发射波长,而不会损失其光学特性。通过这种“量身定制”的合成策略来调节发射波长,可以创建十四种具有良好控制发射颜色(黄色,橙色,红色,远红色和NIR)的KFL染料。此外,这些KFL染料还保留了其出色的光学性能,例如比量子点更清晰的光谱带,高消光系数(140 000–316 000 M -1 cm -1)和高量子产率(0.56-0.98),而没有任何关键的溶剂极性依赖于其亮度降低。这些有利的特性使KFL染料有可能用作荧光标准染料的新候选者,以替代或补充现有的长波长荧光染料,例如花青,恶嗪,若丹明或其他BODIPY染料。
Keio Fluors, which are based on boron-dipyrromethene (BDP), have excellent and useful optical properties: vivid colors and sharp emission in the visible−near-infrared region (583−738 nm), high quantum yields (Φ: 0.56−0.98), high extinction coefficients (185000−288000 M-1 cm-1), and good photostabilities. These optical properties are superior to many of the existing fluorescentdyes such as rhodamines,
FLUORESCENT COMPOUND AND LABELING AGENT COMPRISING THE SAME
申请人:Keio University
公开号:EP2022794B1
公开(公告)日:2017-08-23
Singlet Oxygen Generation by Novel NIR BODIPY Dyes
作者:Samuel G. Awuah、Jason Polreis、Vidya Biradar、Youngjae You
DOI:10.1021/ol2014076
日期:2011.8.5
Five novel near-infrared BODIPY dyes were prepared for improved singlet oxygen generation using thiophene and bromine. Theoretical, optical, photostable, and singlet oxygen generation characteristics of these dyes were assessed. Predicted excitation energies by TDDFT calculations were in good agreement (Delta E approximate to 0.06 eV) with experimental data. All five dyes showed both excitation and emission In the NIR range. In particular, two dyes having sulfur and bromine atoms showed efficient singlet oxygen generation with high photostability.
Fluorescent Compound and Labeling Agent Comprising the Same
申请人:Suzuki Koji
公开号:US20090176313A1
公开(公告)日:2009-07-09
A novel fluorescent compound having a high light fastness, high fluorescence quantum yield and sharp absorption spectrum, which emits fluorescence having a wavelength in long wavelength region, as well as its use as a labeling agent, is disclosed. In Formula [I] below, by forming a specific hetero ring(s) with R
1
and R
2
, and/or R
6
and R
7
, shift of the wavelength of the fluorescence to longer wavelength and increase in molar extinction coefficient are attained maintaining the high light fastness, high fluorescence quantum yield and sharp absorption spectrum which the fluorescent dyes having the boron dipyrromethene skeleton have.
ORGANIC LIGHT EMITTING DEVICE TO EMIT IN NEAR INFRARED
申请人:LI SHENG
公开号:US20100231125A1
公开(公告)日:2010-09-16
Compositions and light-emitting devices related to compounds represented by Formula I are disclosed herein.