Number: 2004-021-1-300
Title: Reference methods, standards and applications of photoluminescence
Task Group
Chairmen: Enrique
San Roman and Fred
Brouwer
Members: Ulises Acuña,
Marcel Ameloot, Noël
Boens, Cornelia Bohne,
Paul DeRose, Jörg
Enderlein, N.P. Ernsting,
Thomas Gustavsson,
Niels Harrit, Johan
Hofkens, Alex Knight,
Helge Lemmetyinen,
Hiroshi Miyasaka,
Ute Resch-Genger,
Alan G. Ryder, Trevor
Smith, Mark Thompson,
Bernard Valeur, and
Hiroyuki Yoshikawa
Objective:
IUPAC documents on fluorescence will be updated including advances
registered during the last fifteen years. Particular attention will
be given to newly developed reference materials and methods.
Description:
Fifteen years ago, David Eaton undertook the task of collecting information
on fluorescence methods and materials as a task of the IUPAC Commission
on Photochemistry. Two relevant documents evolved from this work: 1)
Reference Materials for Fluorescence Measurement, Pure Appl. Chem.,
60(7), 1107-1114 (1988); 2) Recommended Methods for Fluorescence Decay
Analysis, Pure Appl. Chem., 62(8), 1631-1648 (1990).
Since Eaton's documents were written, new reference materials appeared
and the subject evolved rapidly with the incorporation of new areas
and methods which were not or only poorly developed at that time. A
few examples are single molecule fluorescence, ultrafast fluorescence
detection, fluorescence microscopy and so forth. Many of these areas
are of utmost relevance in materials science and in biology. In general,
the interest shifted impressively to organized, (micro)heterogeneous
systems.
Through the present project we propose an update of Eaton's documents,
with a renewed body of reference information and the incorporation of
a brief overview on new methods and techniques which may guide those
entering the field through this fascinating topic. At the same time,
the scope of the work will be broadened to include luminescence from
molecular emitters in their triplet state or states with mixed spin
multiplicity, quantum dots, etc. Thus, the term "fluorescence"
appearing in the earlier documents has been replaced by the far more
comprehensive term "photoluminescence". Reference methods
will include recommendations for the calibration of luminescence measuring
systems, the correction of emission, excitation, action and polarization
spectra, the determination of quantum yields in different spectral ranges
and the determination of lifetimes or decay kinetics in the various
achievable time scales. Whenever possible, extension to non-dilute,
unclear or complex systems of applied interest will be performed.
On defining the task group people were selected, both who participated
in the earlier projects, giving continuity to the work already done,
and new scientists. Together they will constitute a team having a broad
and active view on the subject.
Progress:
The Task Group joined at the XX IUPAC Symposium on Photochemistry,
held in July 2004 in Granada. It was decided, taking into account the
high number of participants, that the project would be divided into
subtasks. Up to now, a provisional subdivision has been achieved (see
report below)
> Nov 2004 report update (pdf
file - 17KB)
> May 2006 report update (pdf
file - 13KB)
> July 2007 report update (pdf
file - 10KB)
Last Update: 16 October 2007
<project announcement published in
Chem.
Int. Nov-Dec
2004 >
