Li Jiasheng, Tang Yong, Li Zongtao, Ding Xinrui, Yu Shudong, Yu Binhai
Engineering Research Center of Green Manufacturing for Energy-Saving and New-Energy Technology, South China University of Technology, Guangdong 510640, China.
Foshan Nationstar Optoelectronics Company Ltd., Foshan 528000, China.
Nanomaterials (Basel). 2018 Jul 9;8(7):508. doi: 10.3390/nano8070508.
In this report, a blue anti-transmission film (BATF) has been introduced to improve the color-conversion efficiency (CCE) and the stability of quantum dot (QD) films. The results indicate that the CCE can be increased by as much as 93% using 15 layers of BATFs under the same QD concentration. Therefore, the same CCE can be achieved using BATF-QD hybrid films with a lower QD concentration when compared with standard QD films. The hybrid and QD films with the same CCE of 60% were aged at an environmental temperature of 25°C and with a 10 mA injection current light-emitting diode source. The CCE and luminous efficacy that are gained by the hybrid film increased by 42.8% and 24.5%, respectively, when compared with that gained by the QD film after aging for the same time period of approximately 65 h. In addition, the hybrid film can effectively suppress the red-shift phenomenon of the QD light spectra, as well as an expansion of the full-width at half maximum. Consequently, these BATF-QD hybrid films with excellent optical performance and stability show great potential for illumination and display applications.
在本报告中，引入了一种蓝色抗传输膜（BATF）以提高量子点（QD）膜的颜色转换效率（CCE）和稳定性。结果表明，在相同量子点浓度下，使用15层BATF可使CCE提高多达93%。因此，与标准量子点膜相比，使用较低量子点浓度的BATF-量子点混合膜可实现相同的CCE。将具有相同60%CCE的混合膜和量子点膜在环境温度25℃、注入电流为10 mA的发光二极管光源下老化。与在大约65小时的相同老化时间段后量子点膜所获得的CCE和发光效率相比，混合膜所获得的CCE和发光效率分别提高了4
