Ag2–xCuxWO4 Solid Solution: Structure, Morphology, Optical Properties, and Photocatalytic Performance in the Degradation of RhB under Blue Light-Emitting Device Irradiation

2021 ◽  
Author(s):  
Marcus V. B. do Nascimento ◽  
Francisco X. Nobre ◽  
Eduardo N. D. de Araújo ◽  
Clodoaldo I. L. de Araújo ◽  
Paulo R. C. Couceiro ◽  
...  
Keyword(s):  
Solid Solution ◽  
Optical Properties ◽  
Blue Light ◽  
Solution Structure ◽  
Photocatalytic Performance ◽  
Light Emitting ◽  
Structure Morphology

N-2-Aryl-1,2,3-triazoles: A Novel Class of UV/Blue-Light-Emitting Fluorophores with Tunable Optical Properties

2011 ◽  
Vol 17 (18) ◽  
pp. 5011-5018 ◽  
Author(s):  
Wuming Yan ◽  
Qiaoyi Wang ◽  
Quan Lin ◽  
Minyong Li ◽  
Jeffrey L. Petersen ◽  
...  
Keyword(s):  
Optical Properties ◽  
Blue Light ◽  
Light Emitting ◽  
Tunable Optical Properties

Synthesis, optical properties and crystal structures of carbazole end-capped phenylene ethynylene blue light-emitting materials

2010 ◽  
Vol 130 (7) ◽  
pp. 1183-1188 ◽  
Author(s):  
Rui Liu ◽  
Hongjun Zhu ◽  
Jin Chang ◽  
Qi Xiao ◽  
Yuhao Li ◽  
...  
Keyword(s):  
Optical Properties ◽  
Crystal Structures ◽  
Blue Light ◽  
Phenylene Ethynylene ◽  
Light Emitting

Investigation of Nanostructure and Optical Properties of Flexible AZO Thin Films at Different Powers of RF Magnetron Sputtering

NANO ◽  
2018 ◽  
Vol 13 (06) ◽  
pp. 1850062 ◽  
Author(s):  
Sh. Khatami ◽  
L. Fekri Aval ◽  
G. Behzadi Pour
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Magnetron Sputtering ◽  
Rf Magnetron Sputtering ◽  
Rf Power ◽  
X Ray Diffraction ◽  
Light Emitting ◽  
Structure Morphology ◽  
Xrd Patterns ◽  
Predominant Direction

In this study Al-doped Zinc Oxide (AZO) thin films were successfully deposited on the flexible Polymethyl methacrylate (PMMA) substrate by RF magnetron sputtering. The effects of RF power on the crystal structure, morphology, thickness and optical properties of AZO thin films have been investigated. The AZO thin films were analyzed using X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), DEKTAK 3 profilometer, UV–Visible spectroscopy and room temperature photoluminescence (PL) spectroscopy. The XRD patterns show that increase of RF power leads to increase in the predominant direction along (100) and crystal plane of hexagonal ZnO. Moreover, the transmittance of thin films decreased from 76% to 61% and optical bang gap varied among 3.34[Formula: see text]eV to 3.22[Formula: see text]eV with increasing RF power. The PL spectra show excellent light-emitting characteristics: 375[Formula: see text]nm, 428[Formula: see text]nm, 467[Formula: see text]nm and 505[Formula: see text]nm. The results indicate that the peak intensity increases with increasing RF power from 80[Formula: see text]W to 180[Formula: see text]W.

Tuning optical properties of CsPbBr3 by mixing Nd3+trivalent lanthanide halide cations for blue light emitting devices.

2022 ◽  
Author(s):  
Muhammad Amin Padhiar ◽  
Minqiang Wang ◽  
Yongqiang Ji ◽  
Zhi Yang ◽  
Arshad Saleem Bhatti
Keyword(s):  
Optical Properties ◽  
Blue Light ◽  
Light Emission ◽  
Low Cost ◽  
Thermal Quenching ◽  
Visible Spectrum ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Lanthanide Halide ◽  
Trivalent Lanthanide

Abstract In recent years, significant progress has been made in the red and green perovskite quantum dots (PQDs) based light-emitting devices. However, a scarcity of blue-emitting devices that are extremely efficient precludes their research and development for optoelectronic applications. Taking advantage of tunable bandgaps of PQDs over the entire visible spectrum, herein we tune optical properties of CSPbBr3 by mixing Nd3+ trivalent lanthanide halide cations for blue light-emitting devices. The CsPbBr3 PQDs doped with Nd3+ trivalent lanthanide halide cations emitted strong photoemission from green into the blue region. By adjusting their doping concentration, a tunable wavelength from (515 nm) to (450 nm) was achieved with FWHM from (37.83 nm) to (16.6 nm). We simultaneously observed PL linewidth broadening thermal quenching of PL and the blue shift of the optical bandgap from temperature-dependent PL studies. The Nd3+ cations into CsPbBr3 PQDs more efficiently reduced non-radiative recombination. As a result of the efficient removal of defects from PQDs, the photoluminescence quantum yield (PLQY) has been significantly increased to 91% in the blue-emitting region. Significantly, Nd3+ PQDs exhibit excellent long-term stability against the external environment, including water, temperature, and ultraviolet light irradiation. Moreover, we successfully transformed Nd3+ doped PQDs into highly fluorescent nanocomposites. Incorporating these findings, we fabricate and test a stable blue light-emitting LED with EL emission at (462 nm), (475 nm), and successfully produce white light emission from Nd3+ doped nanocomposites with a CIE at (0.32, 0.34), respectively. The findings imply that low-cost Nd3+ doped perovskites may be attractive as light converters in LCDs with a broad color gamut.

Optical Properties of Blue-Light-Emitting (Ca,Sr)Mg2Si3O9:Eu2+Phosphor

2010 ◽  
Vol 49 (10) ◽  
pp. 102101 ◽  
Author(s):  
Hyun Ju Lee ◽  
Sung Hwan Choi ◽  
Kyung Pil Kim ◽  
Hyun Ho Shin ◽  
Jae Soo Yoo
Keyword(s):  
Optical Properties ◽  
Blue Light ◽  
Light Emitting

Structural and linear optical properties of blue light emitting Sr3Al2O6

2020 ◽  
Author(s):  
Neenu Mary Thomas ◽  
V. G. Sreeja ◽  
Ison V. Vanchipurackal ◽  
E. I. Anila
Keyword(s):  
Optical Properties ◽  
Blue Light ◽  
Light Emitting ◽  
Linear Optical Properties ◽  
Linear Optical
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