Jump to main content
Jump to site search

Issue 12, 2014
Previous Article Next Article

Dark to light! A new strategy for large Stokes shift dyes: coupling of a dark donor with tunable high quantum yield acceptors

Author affiliations

Abstract

A new strategy for constructing large Stokes shift dyes by coupling a low quantum yield (less than 1%) BODIPY donor (BDN) with tunable high quantum yield BODIPY acceptors (BDM) has been explored to synthesize a set of novel Dark Resonance Energy Transfer (DRET) dyes, named BNM. The low quantum yield of the donor is ascribed to the intramolecular rotation of the phenyl rings, which has been proven by controlling the viscosity and temperature of the solvent. However, upon excitation of BNM compounds at the donor absorption wavelength, tunable emissions from 560 nm to 617 nm were obtained, with a high quantum yield of up to 0.75. Ultrafast dynamic studies demonstrated that the absorbed energy was transferred to the acceptor (BDM) with a high energy transfer rate, before being quenched by non-radiative intramolecular rotations. Using a dark donor makes it possible to avoid fluorescence leaks from donor emission. This is a new set of RET dyes that can be excited by a low quantum yield donor to emit a tunable wide range of high fluorescence emission.

Graphical abstract: Dark to light! A new strategy for large Stokes shift dyes: coupling of a dark donor with tunable high quantum yield acceptors

Back to tab navigation

Supplementary files

Article information


Submitted
19 Jun 2014
Accepted
31 Jul 2014
First published
04 Aug 2014

Chem. Sci., 2014,5, 4812-4818
Article type
Edge Article

Dark to light! A new strategy for large Stokes shift dyes: coupling of a dark donor with tunable high quantum yield acceptors

D. Su, J. Oh, S. Lee, J. M. Lim, S. Sahu, X. Yu, D. Kim and Y. Chang, Chem. Sci., 2014, 5, 4812
DOI: 10.1039/C4SC01821D

Social activity

Search articles by author

Spotlight

Advertisements