Role of octahedral deformation in the broad-band emission in Mn-doped lead halide perovskite: First-principles investigation for the case of CsPbX3 (X = Cl, Br, I)

2021 ◽  
Vol 118 (16) ◽  
pp. 163901
Author(s):  
Lingting Song ◽  
Le Huang ◽  
Wenbo Xiao ◽  
Jingbo Li
Keyword(s):  
First Principles ◽  
Broad Band ◽  
Broad Band Emission ◽  
Band Emission ◽  
Halide Perovskite ◽  
Mn Doped ◽  
Lead Halide

Efficient Broad-Band Emission from Contorted Purely Corner-Shared One Dimensional (1D) Organic Lead Halide Perovskite

2019 ◽  
Vol 31 (7) ◽  
pp. 2253-2257 ◽  
Author(s):  
Anupam Biswas ◽  
Rangarajan Bakthavatsalam ◽  
Samir R. Shaikh ◽  
Aparna Shinde ◽  
Amruta Lohar ◽  
...  
Keyword(s):  
Broad Band ◽  
One Dimensional ◽  
Broad Band Emission ◽  
Band Emission ◽  
Organic Lead ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals The challenging SED of AP Librae

2011 ◽  
Vol 7 (S284) ◽  
pp. 411-413 ◽  
Author(s):  
David Sanchez ◽  
Berrie Giebels ◽  
Pascal Fortin ◽  
Keyword(s):  
Spectral Energy Distribution ◽  
Broad Band ◽  
Low Frequency ◽  
Theoretical Models ◽  
Intermediate Frequency ◽  
High Energy ◽  
Spectral Energy ◽  
Broad Band Emission ◽  
Band Emission ◽  
Bl Lac

AbstractMatching the broad-band emission of active galaxies with the predictions of theoretical models can be used to derive constraints on the properties of the emitting region and to probe the physical processes involved. AP Librae is the third low frequency peaked BL Lac (LBL) detected at very high energy (VHE, E>100GeV) by an Atmospheric Cherenkov Telescope; most VHE BL Lacs (34 out of 39) belong to the high-frequency and intermediate-frequency BL Lac classes (HBL and IBL). LBL objects tend to have a higher luminosity with lower peak frequencies than HBLs or IBLs. The characterization of their time-averaged spectral energy distribution is challenging for emission models such as synchrotron self-Compton (SSC) models.

Microscintillator of Ce Doped β-NaLuF4 in Uniform Hexagonal Prism Morphology by a Facile Hydrothermal Method

2014 ◽  
Vol 541-542 ◽  
pp. 220-224
Author(s):  
Li Sha Liu ◽  
Hao Hong Chen ◽  
Bi Qiu Liu ◽  
Bin Tang ◽  
Zhi Jia Sun ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Hexagonal Phase ◽  
Broad Band ◽  
High Energy ◽  
Hexagonal Prism ◽  
Facile Hydrothermal Method ◽  
X Ray ◽  
Strong Broad Band ◽  
Broad Band Emission ◽  
Band Emission

To explore micro-or nanoscintillator with a controllable architecture, a novel facile hydrothermal method easy for commercial run was used to synthesize pure and Ce doped β-NaLuF4 microcrystals at 453K. The morphology of uniform hexagonal prism with 3.3μm in diameter and 1.4 μm in thickness, respectively, is presented by the results of scanning electron microscopy (SEM). Powder X-ray diffraction (PXRD) patterns show the products are both pure hexagonal phase. Different from the undoped product without any irradiation, the Ce doped product has given strong broad band emission attributed to 5d4f transition of Ce3+, which can be potentially used as scintillator for biomedical imaging and detectors for high energy such as X-ray and γray. This synthetical strategy extends the understanding about nanomaterial chemistry and can be also useful for other systems such as fluorides, oxides and sulfides.

Preparation and Luminescence Property of LaMgAl11O19

2012 ◽  
Vol 519 ◽  
pp. 224-227 ◽  
Author(s):  
Xin Min ◽  
Ming Hao Fang ◽  
Yan Gai Liu ◽  
Zhao Hui Huang
Keyword(s):  
Solid State ◽  
Luminescence Property ◽  
Broad Band ◽  
Emission Spectra ◽  
Synthesis Temperature ◽  
Solid State Lasers ◽  
Broad Band Emission ◽  
Band Emission ◽  
Air Atmosphere ◽  
Fluorescent Lamps

Lanthanum magnesium hexaaluminate (LaMgAl11O19, LMA) has attracted much interest as its widely used in solid state lasers, TV phosphors and fluorescent lamps. In this paper, LaMgAl11O19 ceramic was pressureless sintered at 1650 °C for 10 h in air atmosphere using LaMgAl11O19 powders prepared by solid-state reaction at 1500 °C for 4 h. The result indicated that the synthesis temperature of LaMgAl11O19 powders was about 1500 °C. The LMA ceramic sample was dense and had a microstructure of platelet-like gains. The excitation spectrum shows two wide bands with the peaks at about 254 nm and 265 nm by monitoring the strongest 362 nm emission, and the emission spectra is consisted of a broad band emission with their peaks near 362 nm with a half-width about 5 nm exciting with 265 nm wavelength.

Synthesis, Characterization and Photophysical Properties of Rhenium(I) Complexe with 2-(naphthalen-2-yl)-1-phenyl-1H-imidazo[4,5-f][1,10]phenanthroline

2014 ◽  
Vol 988 ◽  
pp. 66-69
Author(s):  
Qiang Li ◽  
Le Li ◽  
Rong Feng Zhong ◽  
Hai Di Cai ◽  
Feng Zhao
Keyword(s):  
Experimental Data ◽  
Solid State ◽  
Photophysical Properties ◽  
Broad Band ◽  
High Energy ◽  
H Nmr ◽  
Emission Maximum ◽  
Broad Band Emission ◽  
Band Emission

In this paper, a Re(I) complex [Re(CO)3(E2)Cl], where E2 = 2-(naphthalen-2-yl)-1-phenyl-1H-imidazo[4,5-f][1,10]phenanthroline(E2), was synthesized and characterized by 1H NMR successfully. Experimental data confirm that Re(I) complex [Re(CO)3(E2)Cl] is high-energy-emitting one. The broad band emission upon excitation at λ = 400 nm with the emission maximum locates at λ = 581 nm in solid state and 614nm in CH2Cl2 solution were observed.

Mn-Doped cesium lead halide perovskite nanocrystals with dual-color emission for WLED

2018 ◽  
Vol 152 ◽  
pp. 146-154 ◽  
Author(s):  
Meiling He ◽  
Yinzi Cheng ◽  
Rongrong Yuan ◽  
Lei Zhou ◽  
Jutao Jiang ◽  
...  
Keyword(s):  
Perovskite Nanocrystals ◽  
Dual Color ◽  
Halide Perovskite ◽  
Mn Doped ◽  
Lead Halide ◽  
Color Emission

Understanding the Essential Role of PbI2 Films in a High-Performance Lead Halide Perovskite Photodetector

2020 ◽  
Vol 124 (28) ◽  
pp. 15107-15114
Author(s):  
Yang Li ◽  
Kai Cui ◽  
Xuehui Xu ◽  
Jie Chen ◽  
Yang Liu ◽  
...  
Keyword(s):  
High Performance ◽  
Essential Role ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals Orientation effects on the near-infrared broad-band emission of quasars

2019 ◽  
Vol 485 (1) ◽  
pp. 1405-1411 ◽  
Author(s):  
Susanna Bisogni ◽  
Elisabeta Lusso ◽  
Alessandro Marconi ◽  
Guido Risaliti
Keyword(s):  
Near Infrared ◽  
Broad Band ◽  
Broad Band Emission ◽  
Band Emission ◽  
Orientation Effects
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