Absolute measurements of photoluminescence quantum yields of solutions using an integrating sphere.
We demonstrate that absolute measurements of the photoluminescence quantum yield of solutions can be made using an integrating sphere and a conventional fluorimeter. With this method the need for measurements against a luminescence standard is overcome. The sphere is mounted inside a commercial fluorimeter, which gives flexibility in excitation and emission wavelength ranges. A number of compounds have been investigated and the results are compared to literature values and data obtained using a comparative method.
Department of Chemistry, Durham University, South Road, DH1 3LE, Durham, United Kingdom.
Laurent
L
Porrès
Adam
A
Holland
Lars-Olof
LO
Pålsson
Andrew P
AP
Monkman
Chris
C
Kemp
Andrew
A
Beeby