A dual-emitting core–shell carbon dot–silica–phosphor composite for LED plant grow light

Wang, Li; Zhang, Haoran; Zhou, Xiaohua; Liu, Yingliang; Lei, Bingfu

doi:10.1039/c7ra00227k

Cited by 28 publications

(13 citation statements)

References 27 publications

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“…58,59 The red-emitting CaAlSiN 3 :Eu 2+ phosphor and blue-emitting CDs were connected through a silica framework to form a CDs/ CaAlSiN 3 :Eu 2+ -silica powder. 35 The powder has red and blue dual-emission properties. The LED devices fabricated with the powder are used for lighting plant growth in plant factories.…”

Section: Light Conversion Film and Light-emitting Diodes Devicesmentioning

confidence: 99%

“…In addition, the red fluorescence‐rare earth nanocomposites were prepared by connecting red‐emitting rare‐earth nanocomposites with blue fluorescence CDs through a silica connecting layer to obtain both blue‐ and red‐emitting complex film 58,59 . The red‐emitting CaAlSiN 3 :Eu 2+ phosphor and blue‐emitting CDs were connected through a silica framework to form a CDs/CaAlSiN 3 :Eu 2+ ‐silica powder 35 . The powder has red and blue dual‐emission properties.…”

Section: Effects Of Fluorescent Cds On the Preharvest Process Of Cropsmentioning

confidence: 99%

“…Additionally, CDs can also induce overexpression of genes related to chlorophyll synthesis or increase ribulose‐1,5‐bisphosphate carboxylase/oxygenase (Rubisco) activity, thereby increasing yield 34 . Based on the light conversion performance of CDs, they were prepared as a light conversion film or light‐emitting diodes (LED) for greenhouse plant growth, and achieved positive results 35 . In addition, the fluorescence characteristics of CDs can also be used in the study of plant imaging.…”

Section: Introductionmentioning

confidence: 99%

“…34 Based on the light conversion performance of CDs, they were prepared as a light conversion film or light-emitting diodes (LED) for greenhouse plant growth, and achieved positive results. 35 In addition, the fluorescence characteristics of CDs can also be used in the study of plant imaging. Studies on the effect of CDs on the whole life cycle of plants have been reported.…”

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confidence: 99%

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The role of fluorescent carbon dots in crops: Mechanism and applications

et al. 2022

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Fluorescent carbon dots (CDs) have been widely studied in biosensing, imaging, information encryption, and optoelectronic devices due to excellent optical properties, such as photostability, tunable luminescence range, and resistance to photobleaching. In recent years, CDs have been explored for use in agriculture. Based on their light harvest and light conversion capacity, as well as their characteristics of easy synthesis and low toxicity, CDs show great potential in improving crop photosynthesis.In addition, CDs can also be used for smart and anticounterfeiting packing, food safety detection, and preservation of crops after harvest. In this study, the application of CDs with excellent optical properties in crops has been summarized, including preharvest processes (photosynthesis and plant imaging), and postharvest processes (crop preservation and food safety).Then the toxicity of CDs to crops is introduced. Finally, the present challenges and future prospects are discussed.

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Section: Light Conversion Film and Light-emitting Diodes Devicesmentioning

confidence: 99%

Section: Effects Of Fluorescent Cds On the Preharvest Process Of Cropsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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The role of fluorescent carbon dots in crops: Mechanism and applications

et al. 2022

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“…It has been found that the nanocomposite properties, such fluorescence and Cu 2+ sensing selectivity and sensibility can be regulated through the C‐dots/APTES ratio. A dual emitting core‐shell C‐dots/CaAlSiN 3 : Eu 2+ ‐silica phosphor nanocomposite has been used to produce LED light for plant grow …”

Section: Nanocompositesmentioning

confidence: 99%

Sol‐Gel Chemistry for Carbon Dots

Malfatti

Innocenzi

2018

The Chemical Record

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Carbon dots are an emerging class of carbon-based nanostructures produced by low-cost raw materials which exhibit a widely-tunable photoluminescence and a high quantum yield. The potential of these nanomaterials as a substitute of semiconductor quantum dots in optoelectronics and biomedicine is very high, however they need a customized chemistry to be integrated in host-guest systems or functionalized in core-shell structures. This review is focused on recent advances of the sol-gel chemistry applied to the C-dots technology. The surface modification, the fine tailoring of the chemical composition and the embedding into a complex nanostructured material are the main targets of combining sol-gel processing with C-dots chemistry. In addition, the synergistic effect of the sol-gel precursor combined with the C-dots contribute to modify the intrinsic chemo-physical properties of the dots, empowering the emission efficiency or enabling the tuning of the photoluminescence over a wide range of the visible spectrum.

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Organosilicon‐Based Carbon Dots and Their Versatile Applications

Hu,

Wu,

Gong

2023

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Carbon dots (CDs) are a newly discovered type of fluorescent material that has gained significant attention due to their exceptional optical properties, biocompatibility, and other remarkable characteristics. However, single CDs have some drawbacks such as self‐quenching, low quantum yield (QY), and poor stability. To address these issues, researchers have turned to organosilicon, which is known for its green, economical, and abundant properties. Organosilicon is widely used in various fields including optics, electronics, and biology. By utilizing organosilicon as a synthetic precursor, the biocompatibility, QY, and resistance to self‐quenching of CDs can be improved. Meanwhile, the combination of organosilicon with CDs enables the functionalization of CDs, which significantly expands their original application scenarios. This paper comprehensively analyzes organosilicon in two main categories: precursors for CD synthesis and matrix materials for compounding with CDs. The role of organosilicon in these categories is thoroughly reviewed. In addition, the paper presents various applications of organosilicon compounded CDs, including detection and sensing, anti‐counterfeiting, optoelectronic applications, and biological applications. Finally, the paper briefly discusses current development challenges and future directions in the field.

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A dual-emitting core–shell carbon dot–silica–phosphor composite for LED plant grow light

Abstract: Light-emitting diodes (LEDs) are widely used for artificial lighting in plant factories and have been applied for disease prevention and for accelerating plant growth.

Cited by 28 publications

References 27 publications

The role of fluorescent carbon dots in crops: Mechanism and applications

The role of fluorescent carbon dots in crops: Mechanism and applications

Sol‐Gel Chemistry for Carbon Dots

Organosilicon‐Based Carbon Dots and Their Versatile Applications

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