Electrically tunable white-color electroluminescence from Si-implanted silicon nitride thin film

被引：24
作者：
Cen, Z. H. [1 ]
Chen, T. P. [1 ]
Liu, Z. [1 ]
Liu, Y. [2 ]
Ding, L. [1 ]
Yang, M. [1 ]
Wong, J. I. [1 ]
Yu, S. F. [1 ]
Goh, W. P. [3 ]
机构：
[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[2] Univ Elect Sci & Technol China, State Key Lab Elect Thin Films & Integrated Devic, Chengdu 610054, Sichuan, Peoples R China
[3] Inst Mat Res & Engn, Singapore 117602, Singapore
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 19期
基金：
新加坡国家研究基金会;
关键词：
LAYER;
D O I：
10.1364/OE.18.020439
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Visible electroluminescence (EL) with two composite bands, i.e., a violet band and a green-yellow band has been observed from Si-implanted silicon nitride thin films. By varying the intensity ratio of the two composite EL bands in terms of the injection current, strong white-color EL can be achieved at certain injection currents (e.g., similar to 265 mA/cm(2)). The observed transition in EL color from violet to white under different injection conditions is studied based on the understanding that the violet band is originated from silicon nitride matrix while the green-yellow band is related to the implanted Si. The Si-implanted silicon nitride thin film offers the possibility of electrically tunable white-light Si-based light emitters. (C) 2010 Optical Society of America
引用
收藏
页码：20439 / 20444
页数：6
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