Bismuth Activated Narrow‐Band Cyan Garnet Phosphor Ca 3 Y 2 Ge 3 O 12 :Bi 3+ for NUV‐Pumped White LED Application

Phosphor Rb2ZrF6:Mn4+has been synthesizedviaa co-precipitation method. Series of WLEDs were fabricated by combining YAG:Ce3+yellow phosphor and different amount of Rb2ZrF6:Mn4+red phosphor with InGaN blue chips.

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Narrow band red emitting europium complexes and their application in smart white LEDs and vapoluminescent sensors

Dalton Transactions ◽

10.1039/d0dt00519c ◽

2020 ◽

Vol 49 (19) ◽

pp. 6205-6219 ◽

Cited By ~ 9

Author(s):

Rachna Devi ◽

Sivakumar Vaidyanathan

Keyword(s):

Narrow Band ◽

White Led ◽

Acid Base ◽

Europium Complexes ◽

White Leds ◽

Color Rendering Index ◽

Color Rendering

The synthesized molecular Eu-complex based hybrid white LED showed superior color rendering index. In addition, the complex also showed on-off-on luminescence with exposure to acid–base vapours.

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Efficient and ultra-thermally stable Eu3+ and Sm3+ activated narrow band red/deep red emitting phosphors and their versatile applications

Dalton Transactions ◽

10.1039/d1dt04036g ◽

2021 ◽

Author(s):

Priyadarshini Pradhan ◽

Savita Priya ◽

R. Marikumar ◽

Kasturi Singh ◽

Sivakumar Vaidyanathan

Keyword(s):

Optical Properties ◽

Plant Growth ◽

Narrow Band ◽

White Led ◽

Thermally Stable ◽

Latent Fingerprint ◽

Red Phosphors

A succession of Eu3+ activated Na2Y4(WO4)7 (NYW) red phosphors were synthesised and studied their optical properties in details for white LED, latent fingerprint and plant growth applications. The phosphors crystallised...

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Critical Review—Narrow-Band Nitride Phosphors for Wide Color-Gamut White LED Backlighting

ECS Journal of Solid State Science and Technology ◽

10.1149/2.0051801jss ◽

2017 ◽

Vol 7 (1) ◽

pp. R3064-R3078 ◽

Cited By ~ 41

Author(s):

Shuxing Li ◽

Rong-Jun Xie ◽

Takashi Takeda ◽

Naoto Hirosaki

Keyword(s):

Critical Review ◽

Narrow Band ◽

White Led ◽

Color Gamut ◽

Wide Color Gamut

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STUDYING NARROW-BAND BLUE LIGHT FILTER FOR WHITE LEDS

Interexpo GEO-Siberia ◽

10.33764/2618-981x-2019-8-244-253 ◽

2019 ◽

Vol 8 ◽

pp. 244-253

Author(s):

Nadezhda Chayka ◽

Danila Semenov

Keyword(s):

Blue Light ◽

Narrow Band ◽

Optical Filter ◽

Light Filter ◽

White Led ◽

White Leds ◽

Human Eye ◽

Blue Light Filter

In this paper, we investigated the properties of the developed optical filter, that cuts off part of the blue light range in the spectrum of a white LED, which is harmful to the human eye. The developed filter allows reflecting up to 30 % of blue light in the range from 435 to 440 nm.

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Narrow band red emitting phosphor with negligible concentration quenching for hybrid white LEDs and plant growth applications

Dalton Transactions ◽

10.1039/d1dt00449b ◽

2021 ◽

Author(s):

Kasturi Singh ◽

R. Marikumar ◽

Rachna Devi ◽

Sivakumar Vaidyanathan

Keyword(s):

Plant Growth ◽

Narrow Band ◽

Concentration Quenching ◽

White Led ◽

White Leds ◽

Red Emitting Phosphor

¬Narrow band red emitters is the key to solve the problem encountered by the current white LED technology. In this context, a series of new red emitting Li3BaSrLa3¬(MoO4)8:Eu3+ phosphors were...

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White LED Lighting for Plants

10.1101/215095 ◽

2017 ◽

Cited By ~ 1

Author(s):

Anton Sharakshane

Keyword(s):

Energy Consumption ◽

Blue Light ◽

Narrow Band ◽

Red Light ◽

White Led ◽

State University ◽

Led Lighting ◽

Sodium Lamp ◽

Moderate Energy ◽

Moscow State University

The highest intensity of photosynthesis is obtained under red light, but plants die or their growth gets disrupted if only red light is used. For example, Korean researchers [1] have shown that under pure red light the amount of the grown lettuce is greater than under a combination of red and blue light, but the leaves have a significantly smaller amount of chlorophyll, polyphenols and antioxidants. And the researchers at the Faculty of Biology of the Moscow State University [2] have found that the synthesis of sugars is reduced, growth is inhibited and no blossoming occurs in the leaves of Chinese cabbage under narrow-band red and blue light (as compared to a sodium lamp).What kind of lighting is needed to get a fully developed, large, fragrant and tasty plant with moderate energy consumption?

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An efficient and stable narrow band Mn4+-activated fluorotitanate red phosphor Rb2TiF6:Mn4+ for warm white LED applications

Journal of Materials Chemistry C ◽

10.1039/c8tc02615g ◽

2018 ◽

Vol 6 (32) ◽

pp. 8670-8678 ◽

Cited By ~ 19

Author(s):

L. Y. Wang ◽

E. H. Song ◽

Y. Y. Zhou ◽

T. T. Deng ◽

S. Ye ◽

...

Keyword(s):

Thermal Stability ◽

Quantum Efficiency ◽

Working Conditions ◽

Narrow Band ◽

Internal Quantum Efficiency ◽

Luminescence Properties ◽

White Led ◽

Red Phosphor ◽

Red Emitting Phosphor

A Rb-based fluorotitanate red-emitting phosphor Rb2TiF6:MnM4+ with an internal quantum efficiency of 91% was synthesized and presents exceptional luminescence properties, thermal stability and longevity under LED working conditions.

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Hydrothermal synthesis of narrow-band red emitting K2NaAlF6:Mn4+phosphor for warm-white LED applications

RSC Advances ◽

10.1039/c7ra09671b ◽

2017 ◽

Vol 7 (72) ◽

pp. 45834-45842 ◽

Cited By ~ 23

Author(s):

Haiming Cheng ◽

Yan Song ◽

Guixia Liu ◽

Dan Li ◽

Xiangting Dong ◽

...

Keyword(s):

Narrow Band ◽

Red Light ◽

Color Temperature ◽

Light Radiation ◽

White Led ◽

Hydrothermal Route ◽

Red Phosphor ◽

Truncated Octahedron ◽

Color Rendering Index ◽

Color Rendering

The truncated octahedron shaped K2NaAlF6:Mn4+was preparedviahydrothermal route, which emits red light under blue light radiation. Warm WLEDs fabricated by the obtained red phosphor show lower color temperature and higher color rendering index.

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