Basics of Electron-Impact-Excited Luminescence Devices)

Alternating current driven thin film electroluminescence displays (ac TFD) with an MISIM (metal-insulator-semiconductor-insulator-metal) structure haGe gained much interest by technical and commercial success on the one and novel physical features on the other hand. Because of very recent progress the basics appear now well-established: tunnel emission from interface states, loss-free acceleration, impact excitation and mainly radiative deexcitation of dopants, carrier multiplication, and capture by interface states are the six main processes involved. Experimental evidence can be given for most of them. Afirst time discussion, of the details of time behaviour gives further support to the simple model but clearly points to a necessary further sophistication by taking into account operational inhomogeneities.