Charge transfer in ZnS‐type electroluminescence
|
|
|
 下载全文(2098 KB) |
资源分 38 |
| Abstract: | In this paper, a simple model for the charge transfer in thin‐film, ac‐driven electroluminescent structures of doped ZnS type is proposed. We first review the minimal assumptions needed to account for the carrier emission under high‐field conditions and its subsequent feedback on the field strength; it opens the way to a quantitative description of the field variation with time and the conduction current under arbitrary low‐frequency drive conditions and without using any adjustable parameter. The charge‐voltage relationships are also examined in detail. Conduction in the phosphor layer is assumed to originate from deep levels (traps) in the phosphor forbidden band gap, located at the insulator‐phosphor interface. These levels act for charge storage, too. When a discrete trap level is considered, field clamping in the active layer is obtained; when a smooth interface‐state energy density is assumed, deviations from the field clamping are possible and simply related to the interface parameters. Most of the work is analytical and the model is shown to exhibit the main qualitative features of nonmemory devices. |
| Author:
| Bringuier, E. |
| Author Unit:
| Laboratoire d’Optique de la Matière Condensée, Université P. et M. Curie, Tour |
| Year: | 1989 |
| Source: | Journal of Applied Physics |
| Volume-OnPage: | 661314 |
| Publication Date:
| Aug 1989 |
| Keyword: | |
相似文献
- [1] Bringuier, E. Tentative anatomy of ZnS‐type electroluminescence
- [2] Bringuier, E. Electron multiplication in ZnS‐type electroluminescent devices
- [3] Caleb M. Hill, Yan Zhu†, and Shanlin Pan* Fluorescence and Electroluminescence Quenching Evidence of Interfacial Charge Transfer in Poly (3-hexylthiophene): Graphene Oxide Bulk Heterojunction Photovoltaic Devices
- [4] Bamji, S.S. Bulinski, A.T. Shimizu, N. Electroluminescence and space charge in polymeric insulation
- [5] Laurent, C. Teyssedre, G. Le Roy, S. A discussion on charge transport and electroluminescence in insulating polymers
- [6] Wong, Chun-Yuen Lai, Lo-Ming Leung, Siu-Ling Roy, V. A. L. Pun, Edwin Yue-Bun Ambipolar charge transport and electroluminescence properties of ZnO nanorods
- [7] Alghamdi, A.S. Mills, D.H. Lewin, P.L. Influence of ageing on space charge and electroluminescence of epoxy resin
- [8] Yang, Kai Zhang, Guan-Jun Qiao, Ya-Jun Yan, Zhang Space Charge Measurement and Electroluminescence of Aged LDPE
- [9] Chen, J. Freitag, M. Klinke, C. Afzali, A. Tsang, J. Avouris, P. Charge transferred doping and electroluminescence in carbon nanotube transistors
- [10] Mohsen, A. McGill, T. Mead, C. Charge transfer in charge-coupled devices
|