Bibliographic Details
| Title: |
Highly Stable and Photoluminescent CsPbBr3/Cs4PbBr6 Composites for White-Light-Emitting Diodes and Visible Light Communication |
| Authors: |
Longshi Rao, Bin Sun, Yang Liu, Guisheng Zhong, Mingfu Wen, Jiayang Zhang, Ting Fu, Shuangxi Wang, Fengtao Wang, Xiaodong Niu |
| Source: |
Nanomaterials, Vol 13, Iss 2, p 355 (2023) |
| Publisher Information: |
MDPI AG, 2023. |
| Publication Year: |
2023 |
| Collection: |
LCC:Chemistry |
| Subject Terms: |
ultrasonication, liquid paraffin, CsPbBr3/Cs4PbBr6, white-light-emitting diodes, visible light communication, Chemistry, QD1-999 |
| More Details: |
Inorganic lead halide perovskite is one of the most excellent fluorescent materials, and it plays an essential role in high-definition display and visible light communication (VLC). Its photochromic properties and stability determine the final performance of light-emitting devices. However, efficiently synthesizing perovskite with high quality and stability remains a significant challenge. Here, we develop a facile and environmentally friendly method for preparing high-stability and strong-emission CsPbBr3/Cs4PbBr6 composites using ultrasonication and liquid paraffin. Tuning the contents of liquid paraffin, bright-emission CsPbBr3/Cs4PbBr6 composite powders with a maximum PLQY of 74% were achieved. Thanks to the protection of the Cs4PbBr6 matrix and liquid paraffin, the photostability, thermostability, and polar solvent stability of CsPbBr3/Cs4PbBr6-LP are significantly improved compared to CsPbBr3 quantum dots and CsPbBr3/Cs4PbBr6 composites that were prepared without liquid paraffin. Moreover, the fabricated CsPbBr3/Cs4PbBr6-LP-based WLEDs show excellent luminescent performance with a power efficiency of 129.5 lm/W and a wide color gamut, with 121% of the NTSC and 94% of the Rec. 2020, demonstrating a promising candidate for displays. In addition, the CsPbBr3/Cs4PbBr6-LP-based WLEDs were also demonstrated in a VLC system. The results suggested the great potential of these high-performance WLEDs as an excitation light source to achieve VLC. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2079-4991 |
| Relation: |
https://www.mdpi.com/2079-4991/13/2/355; https://doaj.org/toc/2079-4991 |
| DOI: |
10.3390/nano13020355 |
| Access URL: |
https://doaj.org/article/2ec61ad6b07f43c09d5332e1b674885a |
| Accession Number: |
edsdoj.2ec61ad6b07f43c09d5332e1b674885a |
| Database: |
Directory of Open Access Journals |
