Highly Stable and Photoluminescent CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> Composites for White-Light-Emitting Diodes and Visible Light Communication
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, efficien...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-01-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/13/2/355 |
| _version_ | 1827622765759299584 |
|---|---|
| author | Longshi Rao Bin Sun Yang Liu Guisheng Zhong Mingfu Wen Jiayang Zhang Ting Fu Shuangxi Wang Fengtao Wang Xiaodong Niu |
| author_facet | Longshi Rao Bin Sun Yang Liu Guisheng Zhong Mingfu Wen Jiayang Zhang Ting Fu Shuangxi Wang Fengtao Wang Xiaodong Niu |
| author_sort | Longshi Rao |
| collection | DOAJ |
| description | 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 CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> composites using ultrasonication and liquid paraffin. Tuning the contents of liquid paraffin, bright-emission CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> composite powders with a maximum PLQY of 74% were achieved. Thanks to the protection of the Cs<sub>4</sub>PbBr<sub>6</sub> matrix and liquid paraffin, the photostability, thermostability, and polar solvent stability of CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub>-LP are significantly improved compared to CsPbBr<sub>3</sub> quantum dots and CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> composites that were prepared without liquid paraffin. Moreover, the fabricated CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub>-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 CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub>-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. |
| first_indexed | 2024-03-09T11:32:23Z |
| format | Article |
| id | doaj.art-2ec61ad6b07f43c09d5332e1b674885a |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T11:32:23Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-2ec61ad6b07f43c09d5332e1b674885a2023-11-30T23:48:45ZengMDPI AGNanomaterials2079-49912023-01-0113235510.3390/nano13020355Highly Stable and Photoluminescent CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> Composites for White-Light-Emitting Diodes and Visible Light CommunicationLongshi Rao0Bin Sun1Yang Liu2Guisheng Zhong3Mingfu Wen4Jiayang Zhang5Ting Fu6Shuangxi Wang7Fengtao Wang8Xiaodong Niu9Department of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, ChinaDepartment of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, ChinaDepartment of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, ChinaDepartment of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, ChinaDepartment of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, ChinaDepartment of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, ChinaHubei Key Laboratory of Mechanical Transmission and Manufacturing Engineering, Wuhan University of Science and Technology, Wuhan 430081, ChinaDepartment of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, ChinaDepartment of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, ChinaDepartment of Mechanical Engineering, College of Engineering, Shantou University, Shantou 515063, ChinaInorganic 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 CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> composites using ultrasonication and liquid paraffin. Tuning the contents of liquid paraffin, bright-emission CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> composite powders with a maximum PLQY of 74% were achieved. Thanks to the protection of the Cs<sub>4</sub>PbBr<sub>6</sub> matrix and liquid paraffin, the photostability, thermostability, and polar solvent stability of CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub>-LP are significantly improved compared to CsPbBr<sub>3</sub> quantum dots and CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> composites that were prepared without liquid paraffin. Moreover, the fabricated CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub>-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 CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub>-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.https://www.mdpi.com/2079-4991/13/2/355ultrasonicationliquid paraffinCsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub>white-light-emitting diodesvisible light communication |
| spellingShingle | Longshi Rao Bin Sun Yang Liu Guisheng Zhong Mingfu Wen Jiayang Zhang Ting Fu Shuangxi Wang Fengtao Wang Xiaodong Niu Highly Stable and Photoluminescent CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> Composites for White-Light-Emitting Diodes and Visible Light Communication Nanomaterials ultrasonication liquid paraffin CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> white-light-emitting diodes visible light communication |
| title | Highly Stable and Photoluminescent CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> Composites for White-Light-Emitting Diodes and Visible Light Communication |
| title_full | Highly Stable and Photoluminescent CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> Composites for White-Light-Emitting Diodes and Visible Light Communication |
| title_fullStr | Highly Stable and Photoluminescent CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> Composites for White-Light-Emitting Diodes and Visible Light Communication |
| title_full_unstemmed | Highly Stable and Photoluminescent CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> Composites for White-Light-Emitting Diodes and Visible Light Communication |
| title_short | Highly Stable and Photoluminescent CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> Composites for White-Light-Emitting Diodes and Visible Light Communication |
| title_sort | highly stable and photoluminescent cspbbr sub 3 sub cs sub 4 sub pbbr sub 6 sub composites for white light emitting diodes and visible light communication |
| topic | ultrasonication liquid paraffin CsPbBr<sub>3</sub>/Cs<sub>4</sub>PbBr<sub>6</sub> white-light-emitting diodes visible light communication |
| url | https://www.mdpi.com/2079-4991/13/2/355 |
| work_keys_str_mv | AT longshirao highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication AT binsun highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication AT yangliu highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication AT guishengzhong highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication AT mingfuwen highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication AT jiayangzhang highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication AT tingfu highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication AT shuangxiwang highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication AT fengtaowang highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication AT xiaodongniu highlystableandphotoluminescentcspbbrsub3subcssub4subpbbrsub6subcompositesforwhitelightemittingdiodesandvisiblelightcommunication |