Electroluminescence Properties of ZnO Nano-Particles Embedded in Polyimide

Autor: Qing Guo Chi, Jing Leng, Ming Hui Xia, Jun Hui Shi, Jia Qi Lin
Rok vydání: 2011
Předmět:
Zdroj: Materials Science Forum. 694:137-141
ISSN: 1662-9752
DOI: 10.4028/www.scientific.net/msf.694.137
Popis: In this paper, ZnO Nano-particles is embedded in polyimide, and physical and chemical properties of polyimide/ZnO composite materials have been studied. It is found that different ZnO content will cause UV absorption edge blue shift, and EL tests show that electricity aging and pre-breakdown have changed. For PI/ZnO(1%) and PI/ZnO(2%) composite materials, Electricity aging is at 1.4Mv/cm and 1.5Mv/cm, Pre-breakdown field is at 1.9Mv/cm and 1.8Mv/cm, respectively. In addition, there are emission peaks at 442.8nm, 514.2nm, 609.4nm in the EL spectrum of the PI/ZnO (1%) films and 538nm, 633.2nm of PI/ZnO(2%) films, which indicates that some defects in this area.
Databáze: OpenAIRE