A far-red emission (Ca,Sr)14Zn6Ga10O35:Mn4+ phosphor for potential application in plant-growth LEDs

2018 ◽  
Vol 47 (43) ◽  
pp. 15574-15582 ◽  
Author(s):  
Yibing Wu ◽  
Ying Lv ◽  
Kaibin Ruan ◽  
Zhi Xie
Keyword(s):  
Plant Growth ◽  
Potential Application ◽  
Light Emitting Diodes ◽  
Red Emission ◽  
Light Emitting

To facilitate phosphor-converted light-emitting diodes (LEDs) for plant growth, the development of phosphor materials with efficient red or far-red emission is essential.

Design of Highly Efficient Deep-red Emission in Mn4+ Doped New-Type Structure CaMgAl10O17 for Plant Growth LED Light

2021 ◽  
Author(s):  
Yunpeng Zhou ◽  
Takatoshi Seto ◽  
Ziyong Kang ◽  
Yuhua Wang
Keyword(s):  
Plant Growth ◽  
Light Emitting Diodes ◽  
Luminous Efficiency ◽  
Stable Structure ◽  
Type Structure ◽  
Red Emission ◽  
Light Emitting ◽  
Led Light ◽  
Highly Efficient ◽  
New Type

Abstract The auxiliary light equipment for plant growth requires phosphor-converted light-emitting-diodes (pc-LEDs) with high luminous efficiency and stable structure, and the properties of phosphors highly determine the performance of the...

Superior Stable and High Quantum Yield Phosphor Na2BaSr(PO4)2: Eu2+ for Plant Growth LEDs

2021 ◽  
Author(s):  
Jinmeng Xiang ◽  
Xiaoqi Zhao ◽  
Hao Suo ◽  
Minkun Jin ◽  
Xue Zhou ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Plant Growth ◽  
Light Emitting Diodes ◽  
Light Environment ◽  
High Quantum Yield ◽  
Light Emitting ◽  
Growth Rhythm ◽  
High Quantum ◽  
Violet Light ◽  
Important Means

Controlling the light environment of plant growth using phosphor-converted light-emitting diodes (pc-LEDs) is an important means to regulate the growth rhythm and enhance the yield, in which bluish violet light...

scholarly journals Application of Light-Emitting Diodes for Improving the Nutritional Quality and Bioactive Compound Levels of Some Crops and Medicinal Plants

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1477
Author(s):  
Woo-Suk Jung ◽  
Ill-Min Chung ◽  
Myeong Ha Hwang ◽  
Seung-Hyun Kim ◽  
Chang Yeon Yu ◽  
...  
Keyword(s):  
Plant Growth ◽  
In Vitro Culture ◽  
Light Emitting Diodes ◽  
Photosynthetic Pigment ◽  
Antioxidant Properties ◽  
Light Sources ◽  
Light Emitting ◽  
Cell Defense ◽  
Led Irradiation

Light is a key factor that affects phytochemical synthesis and accumulation in plants. Due to limitations of the environment or cultivated land, there is an urgent need to develop indoor cultivation systems to obtain higher yields with increased phytochemical concentrations using convenient light sources. Light-emitting diodes (LEDs) have several advantages, including consumption of lesser power, longer half-life, higher efficacy, and wider variation in the spectral wavelength than traditional light sources; therefore, these devices are preferred for in vitro culture and indoor plant growth. Moreover, LED irradiation of seedlings enhances plant biomass, nutrient and secondary metabolite levels, and antioxidant properties. Specifically, red and blue LED irradiation exerts strong effects on photosynthesis, stomatal functioning, phototropism, photomorphogenesis, and photosynthetic pigment levels. Additionally, ex vitro plantlet development and acclimatization can be enhanced by regulating the spectral properties of LEDs. Applying an appropriate LED spectral wavelength significantly increases antioxidant enzyme activity in plants, thereby enhancing the cell defense system and providing protection from oxidative damage. Since different plant species respond differently to lighting in the cultivation environment, it is necessary to evaluate specific wavebands before large-scale LED application for controlled in vitro plant growth. This review focuses on the most recent advances and applications of LEDs for in vitro culture organogenesis. The mechanisms underlying the production of different phytochemicals, including phenolics, flavonoids, carotenoids, anthocyanins, and antioxidant enzymes, have also been discussed.

Novel Mn4+-activated layered oxide-fluoride perovskite-type KNaMoO2F4 red phosphor for wide gamut warm white light-emitting diodes backlight

2021 ◽  
Author(s):  
Jiao Wu ◽  
Bo Wang ◽  
Zhiyuan Liu ◽  
Kang Zhang ◽  
Xiaoshuang Li ◽  
...  
Keyword(s):  
Solid State ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Red Phosphor ◽  
Red Emission ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes ◽  
Perovskite Type

Mn4+-activated oxidefluoride phosphors are attractive for application in wide solid-state lighting devices because of its distinct red emission at about 630 nm and the abundant storage of Mn4+ ion. However,...

Non-Doped Organic Light-Emitting Diodes with Saturated Red Emission

2007 ◽  
Vol 50 (2) ◽  
pp. 479 ◽  
Author(s):  
Hui-Ying Hui-Ying ◽  
Fei Fei ◽  
Bing-Xian Bing-Xian ◽  
Xin-Dong Xin-Dong ◽  
Huan-Rong Huan-Rong ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Red Emission ◽  
Light Emitting ◽  
Organic Light

Surface-induced phase engineering and defect passivation of perovskite nanograins for efficient red light-emitting diodes

Nanoscale ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 340-348
Author(s):  
Yong-Chun Ye ◽  
Yanqing Li ◽  
Yu Tian ◽  
Xiao-Yi Cai ◽  
Yang Shen ◽  
...  
Keyword(s):  
Surface Engineering ◽  
Light Emitting Diodes ◽  
Red Light ◽  
Red Emission ◽  
Light Emitting ◽  
Defect Passivation ◽  
Phase Engineering

Efficient and stable red-emission perovskite light-emitting diodes with an EQE of 17.1% are realized by guanidinium iodide-assisted surface engineering.

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