有機螢光体の電場発光 (I)

抄録

Electroluminescence and photoluminescence have been observed with cellulose films dyed with organic fluorescent compounds such as Acridine Orange and Auramine. Cellulose films dipped into solution of such dyes are dried and freed from oxygen. The films are mounted as the dielectric of a condenser having one transparent electrode and an alternating potential is applied. It is shown that as the concentration of organic phosphors in solution increases photoluminescence spectra of such solutions shift towards longer wavelength.
In the case of electroluminescence, luminous intensity is proportional to the square of applied voltage and to the frequency. The spectral distribution is neither effected by the voltage nor by the frequency of the applied field; it resembles that of photoluminescence. Brightness waves of electroluminescence of organic dyes are similar to those of inorganic phosphors.