ELECTROLUMINESCENT CELL PREPARED BY CHEMICAL-DEPOSITION OF ZNS-MN THIN-FILM

The method of chemical deposition of thin films from two different sol utions has been applied for the preparation of a luminescent layer of ZnS doped by Mn in order to fabricate an electroluminescent MISIM cell . The emission spectrum has been examined at room temperature, and thr ee maxima have been found at 330, 350 and 370 nm. The emitted light in tensity at 2 kHz depended linearly on the current in the range from 0 to 1 mA. The dependence of light intensity on the frequency has been e xamined in the frequency range 1.2-3.4 kHz at a constant current of 0. 3 mA. The degradation of the cell has also been examined and it has be en found that the emitted light intensity does not decrease during 24 h of working. (C) 1997 Elsevier Science S.A.