Study of emission efficiency in ac driven light emitter devices

R. Baca-Arroyo, A. Esparza-García, G. Romero-Paredes, R. Peña-Sierra

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

A study of the high field emission efficiency in ZnS: Mn is presented. At intense electric field conditions the band bending resulting from space charge effects has not been considered since the space charge density in the active layer is low. We demonstrate that ac driven TFEL devices with large insulator capacitance and no space charge effects in the active layer are optimal in terms of providing the energy transfer from sensitizers to luminescent centers. The analysis takes into account the pair-producing mechanism by direct electron impact with a characteristic electron energy distribution described by the Wolff distribution function. From the described model for a typical structure, the emission efficiency behavior could be expressed by the relation between the minimum distances required by the emitted carriers to produce electron-hole pairs and ac drive conditions.

Idioma originalInglés
Título de la publicación alojada2009 6th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2009
EditorialIEEE Computer Society
ISBN (versión impresa)9781424446896
DOI
EstadoPublicada - 2009
Publicado de forma externa
Evento2009 6th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2009 - Toluca, México
Duración: 10 nov. 200913 nov. 2009

Serie de la publicación

Nombre2009 6th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2009

Conferencia

Conferencia2009 6th International Conference on Electrical Engineering, Computing Science and Automatic Control, CCE 2009
País/TerritorioMéxico
CiudadToluca
Período10/11/0913/11/09

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