Stable yellow light emission from lead-free copper halides single crystals for visible light communication
Yellow light-emitting diodes (LEDs) as soft light have attracted abundant attention in lithography room, museum and art gallery. However, the development of efficient yellow LEDs lags behind green and blue LEDs, and the available perovskites yellow LEDs suffer from the instability. Herein, a pressur...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2023-03-01
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| Series: | Nano Materials Science |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589965122000186 |
| _version_ | 1797852974002733056 |
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| author | Baiqian Wang Yuru Tang Xin Yang Wensi Cai Ru Li Wen Ma Shuangyi Zhao Chen Chen Zhigang Zang |
| author_facet | Baiqian Wang Yuru Tang Xin Yang Wensi Cai Ru Li Wen Ma Shuangyi Zhao Chen Chen Zhigang Zang |
| author_sort | Baiqian Wang |
| collection | DOAJ |
| description | Yellow light-emitting diodes (LEDs) as soft light have attracted abundant attention in lithography room, museum and art gallery. However, the development of efficient yellow LEDs lags behind green and blue LEDs, and the available perovskites yellow LEDs suffer from the instability. Herein, a pressure-assisted cooling method is proposed to grow lead-free CsCu2I3 single crystals, which possess uniform surface morphology and enhanced photoluminescence quantum yield (PLQY) stability, with only 10% PLQY losses after being stored in air after 5000 h. Then, the single crystals used for yellow LEDs without encapsulation exhibit a decent Correlated Color Temperature (CCT) of 4290 K, a Commission Internationale de l'Eclairage (CIE) coordinate of (0.38, 0.41), and an excellent 570-h operating stability under heating temperature of 100 °C. Finally, the yellow LEDs facilitate the application in wireless visible light communication (VLC), which show a −3 dB bandwidth of 21.5 MHz and a high achievable data rate of 219.2 Mbps by using orthogonal frequency division multiplexing (OFDM) modulation with adaptive bit loading. The present work not only promotes the development of lead-free single crystals, but also inspires the potential of CsCu2I3 in the field of yellow illumination and wireless VLC. |
| first_indexed | 2024-04-09T19:41:55Z |
| format | Article |
| id | doaj.art-3d18d3b707124e2483ef7be0b985a970 |
| institution | Directory Open Access Journal |
| issn | 2589-9651 |
| language | English |
| last_indexed | 2024-04-09T19:41:55Z |
| publishDate | 2023-03-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Nano Materials Science |
| spelling | doaj.art-3d18d3b707124e2483ef7be0b985a9702023-04-04T04:09:00ZengKeAi Communications Co., Ltd.Nano Materials Science2589-96512023-03-01517885Stable yellow light emission from lead-free copper halides single crystals for visible light communicationBaiqian Wang0Yuru Tang1Xin Yang2Wensi Cai3Ru Li4Wen Ma5Shuangyi Zhao6Chen Chen7Zhigang Zang8Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing, 400044, ChinaSchool of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing, 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing, 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing, 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing, 400044, ChinaKey Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing, 400044, China; Corresponding author.School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, China; Corresponding author.Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), Chongqing University, Chongqing, 400044, China; Corresponding author.Yellow light-emitting diodes (LEDs) as soft light have attracted abundant attention in lithography room, museum and art gallery. However, the development of efficient yellow LEDs lags behind green and blue LEDs, and the available perovskites yellow LEDs suffer from the instability. Herein, a pressure-assisted cooling method is proposed to grow lead-free CsCu2I3 single crystals, which possess uniform surface morphology and enhanced photoluminescence quantum yield (PLQY) stability, with only 10% PLQY losses after being stored in air after 5000 h. Then, the single crystals used for yellow LEDs without encapsulation exhibit a decent Correlated Color Temperature (CCT) of 4290 K, a Commission Internationale de l'Eclairage (CIE) coordinate of (0.38, 0.41), and an excellent 570-h operating stability under heating temperature of 100 °C. Finally, the yellow LEDs facilitate the application in wireless visible light communication (VLC), which show a −3 dB bandwidth of 21.5 MHz and a high achievable data rate of 219.2 Mbps by using orthogonal frequency division multiplexing (OFDM) modulation with adaptive bit loading. The present work not only promotes the development of lead-free single crystals, but also inspires the potential of CsCu2I3 in the field of yellow illumination and wireless VLC.http://www.sciencedirect.com/science/article/pii/S2589965122000186Lead-free copper halidesSingle crystalsYellow light-emitting diodesVisible light communication (VLC) |
| spellingShingle | Baiqian Wang Yuru Tang Xin Yang Wensi Cai Ru Li Wen Ma Shuangyi Zhao Chen Chen Zhigang Zang Stable yellow light emission from lead-free copper halides single crystals for visible light communication Nano Materials Science Lead-free copper halides Single crystals Yellow light-emitting diodes Visible light communication (VLC) |
| title | Stable yellow light emission from lead-free copper halides single crystals for visible light communication |
| title_full | Stable yellow light emission from lead-free copper halides single crystals for visible light communication |
| title_fullStr | Stable yellow light emission from lead-free copper halides single crystals for visible light communication |
| title_full_unstemmed | Stable yellow light emission from lead-free copper halides single crystals for visible light communication |
| title_short | Stable yellow light emission from lead-free copper halides single crystals for visible light communication |
| title_sort | stable yellow light emission from lead free copper halides single crystals for visible light communication |
| topic | Lead-free copper halides Single crystals Yellow light-emitting diodes Visible light communication (VLC) |
| url | http://www.sciencedirect.com/science/article/pii/S2589965122000186 |
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