Synthesis and photoluminescence of EuIIin barium zinc orthosilicate: a novel green color emitting phosphor for white-LEDs

Luminescence ◽  
2016 ◽  
Vol 32 (3) ◽  
pp. 334-340 ◽  
Author(s):  
S. Kasturi ◽  
V. Sivakumar ◽  
U. V. Varadaraju
Keyword(s):  
Green Color ◽  
White Leds ◽  
Zinc Orthosilicate

Tunable blue-green color emitting phosphors Sr 3 YNa(PO 4 ) 3 F:Eu 2+ , Tb 3+ based on energy transfer for near-UV white LEDs

2017 ◽  
Vol 185 ◽  
pp. 106-111 ◽  
Author(s):  
Yahong Jin ◽  
Yang Lv ◽  
Yihua Hu ◽  
Li Chen ◽  
Guifang Ju ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Green Color ◽  
White Leds

Tunable blue-green color emitting Al5O6N: Eu2+, Tb3+ phosphors with energy transfer for near-UV white LEDs

2019 ◽  
Vol 212 ◽  
pp. 146-153 ◽  
Author(s):  
Quan Dong ◽  
Jun Cui ◽  
Yabin Tian ◽  
Fengli Yang ◽  
Hong Ming ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Green Color ◽  
White Leds

Tunable blue-green color emission and energy transfer of Sr3NaSc(PO4)3F:Eu2+,Tb3+ phosphors with near-UV broad band excited for white LEDs

2019 ◽  
Vol 206 ◽  
pp. 585-592 ◽  
Author(s):  
Zaifa Yang ◽  
Changjian Ji ◽  
Gongnian Zhang ◽  
Guimei Han ◽  
Hui Wang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Broad Band ◽  
Green Color ◽  
White Leds ◽  
Color Emission

Blue Emitting BaAl2O4:Ce3+ Nanophosphors with High Color Purity and Brightness for White LEDs

2019 ◽  
Vol 25 (6) ◽  
pp. 1466-1470 ◽  
Author(s):  
Rituparna Chatterjee ◽  
Subhajit Saha ◽  
Karamjyoti Panigrahi ◽  
Uttam Kumar Ghorai ◽  
Gopes Chandra Das ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Field Emission ◽  
Sol Gel ◽  
Blue Emission ◽  
Diffraction Field ◽  
White Leds ◽  
Display Devices ◽  
Transmission Electron ◽  
Structure Morphology ◽  
The Impact

AbstractIn this work, strongly blue emitting Ce3+-activated BaAl2O4 nanophosphors were successfully synthesized by a sol–gel technique. The crystal structure, morphology, and microstructure of the nanophosphors have been studied by X-ray powder diffraction, field emission scanning electron microscopy, and high-resolution transmission electron microscopy. The photoluminescence spectra show the impact of concentration variation of Ce3+ on the photoluminescence emission of the phosphor. These nanophosphors display intense blue emission peaking at 422 nm generated by the Ce3+ 5d → 4f transition under 350 nm excitation. Our results reveal that this nanophosphor has the capability to take part in the emergent domain of solid-state lighting and field-emission display devices.

Synthesis, photoluminescence and Li+ concentration effect on new reddish phosphor Li2Sr2Al(PO4)3:Sm3+ for white LEDs

2020 ◽  
Vol 120 ◽  
pp. 108152 ◽  
Author(s):  
Haidong Ju ◽  
Yongbo Liu ◽  
Xianlin Huang ◽  
Xiangqiao Feng ◽  
Baoling Wang ◽  
...  
Keyword(s):  
Concentration Effect ◽  
White Leds

scholarly journals LED Lighting and High-Density Planting Enhance the Cost-Efficiency of Halimione portulacoides Extraction Units for Integrated Aquaculture

2021 ◽  
Vol 11 (11) ◽  
pp. 4995
Author(s):  
Marco Custódio ◽  
Paulo Cartaxana ◽  
Sebastián Villasante ◽  
Ricardo Calado ◽  
Ana Isabel Lillebø
Keyword(s):  
Plant Density ◽  
Inorganic Nitrogen ◽  
High Density ◽  
Planting Density ◽  
Nitrogen And Phosphorus ◽  
Integrated Aquaculture ◽  
Halimione Portulacoides ◽  
White Leds ◽  
Artificial Lighting ◽  
Aquaculture Effluents

Halophytes are salt-tolerant plants that can be used to extract dissolved inorganic nutrients from saline aquaculture effluents under a production framework commonly known as Integrated Multi-Trophic Aquaculture (IMTA). Halimione portulacoides (L.) Aellen (common name: sea purslane) is an edible saltmarsh halophyte traditionally consumed by humans living near coastal wetlands and is considered a promising extractive species for IMTA. To better understand its potential for IMTA applications, the present study investigates how artificial lighting and plant density affect its productivity and capacity to extract nitrogen and phosphorous in hydroponic conditions that mimic aquaculture effluents. Plant growth was unaffected by the type of artificial lighting employed—white fluorescent lights vs. blue-white LEDs—but LED systems were more energy-efficient, with a 17% reduction in light energy costs. Considering planting density, high-density units of 220 plants m−2 produced more biomass per unit of area (54.0–56.6 g m−2 day−1) than did low-density units (110 plants m−2; 34.4–37.1 g m−2 day−1) and extracted more dissolved inorganic nitrogen and phosphorus. Overall, H. portulacoides can be easily cultivated hydroponically using nutrient-rich saline effluents, where LEDs can be employed as an alternative to fluorescent lighting and high-density planting can promote higher yields and extraction efficiencies.

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