標題: | Non-doped solid-state white light-emitting electrochemical cells employing the microcavity effect |
作者: | Lin, Guan-Rung Chen, Hsiao-Fan Shih, Hsien-Chang Hsu, Jia-Hong Chang, Yi Chiu, Chih-Hung Cheng, Chia-Yu Yeh, Yun-Shivan Su, Hai-Ching Wong, Ken-Tsung 照明與能源光電研究所 Institute of Lighting and Energy Photonics |
公開日期: | 14-三月-2015 |
摘要: | Solid-state white light-emitting electrochemical cells (LECs) have attracted research attention owing to their advantages of simple device structure, low operation voltage and compatibility with solution processes. In this work, we demonstrate a simple approach to obtain white electroluminescence (EL) from non-doped LECs based on a blue-emitting complex. With a relatively thicker emissive layer, red emission can be additionally enhanced by the microcavity effect when the recombination zone moves to appropriate positions. Hence, white EL can be harvested by combining blue emission from the complex and red emission from the microcavity effect. These non-doped white LECs show external quantum efficiencies and power efficiencies up to 5% and 12 lm W-1, respectively. These results show that efficient white EL can be obtained in simple non-doped LECs. |
URI: | http://dx.doi.org/10.1039/c4cp05380j http://hdl.handle.net/11536/124510 |
ISSN: | 1463-9076 |
DOI: | 10.1039/c4cp05380j |
期刊: | PHYSICAL CHEMISTRY CHEMICAL PHYSICS |
Volume: | 17 |
Issue: | 10 |
起始頁: | 6956 |
結束頁: | 6962 |
顯示於類別: | 期刊論文 |