標題: | Ultrawide Color Gamut Perovskite and CdSe/ZnS Quantum-Dots-Based White Light-Emitting Diode with High Luminous Efficiency |
作者: | Lin, Chih-Hao Kang, Chieh-Yu Verma, Akta Wu, Tingzhu Pai, Yung-Min Chen, Tzu-Yu Tsai, Chun-Lin Yang, Ya-Zhu Sharma, S. K. Sher, Chin-Wei Chen, Zhong Lee, Po-Tseng Chung, Shu-Ru Kuo, Hao-Chung 電機學院 光電工程學系 College of Electrical and Computer Engineering Department of Photonics |
關鍵字: | ultrawide color gamut display;perovskite quantum dots;white LED |
公開日期: | 1-九月-2019 |
摘要: | We demonstrate excellent color quality of liquid-type white light-emitting diodes (WLEDs) using a combination of green light-emitting CsPbBr3 and red light-emitting CdSe/ZnS quantum dots (QDs). Previously, we reported red (CsPbBr1.2I1.8) and green (CsPbBr3) perovskite QDs (PQDs)-based WLEDs with high color gamut, which manifested fast anion exchange and stability issues. Herein, the replacement of red PQDs with CdSe/ZnS QDs has resolved the aforementioned problems effectively and improved both stability and efficiency. Further, the proposed liquid-type device possesses outstanding color gamut performance (132% of National Television System Committee and 99% of Rec. 2020). It also shows a high efficiency of 66 lm/W and an excellent long-term operation stability for over 1000 h. |
URI: | http://dx.doi.org/10.3390/nano9091314 http://hdl.handle.net/11536/153117 |
DOI: | 10.3390/nano9091314 |
期刊: | NANOMATERIALS |
Volume: | 9 |
Issue: | 9 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |