Former Research Groups

Hans Bill - Honorary Professor

Content

Formerly Full Professor
at Department of Physical Chemistry
University of Geneva - Sciences II
30, quai Ernest-Ansermet
CH-1211 Geneva 4
 
tel. +41(0)22 3796547 (secretary's office)
fax +41(0)22 3796103
e-mail  hans.bill@unige.ch

Summary

Work on phosphors: synthesis, spectroscopy, UV generation. The class of materials we developed in the last years performs well as illumination phosphors.

Here are some spectra demonstrating the interest of these materials: the commercial phosphor (black curves) really needs a hard UV excitation and has a low efficiency when excited at 365nm; whereas our materials (green and blue curves) only need soft UV excitation for a good efficiency in the whole visible range, thereby emitting white light.

Luminescence : a brighter future with new phosphors

 Luminescence : a brighter future with new phosphors

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