Direct emission from quartet excited states triggered by upconversion phenomena in solid-phase synthesized fluorescent lead-free organic–inorganic hybrid compounds

2019 ◽  
Vol 7 (46) ◽  
pp. 26504-26512 ◽  
Author(s):  
Atanu Jana ◽  
Shynggys Zhumagali ◽  
Qiankai Ba ◽  
Arun S. Nissimagoudar ◽  
Kwang S. Kim
Keyword(s):  
Excited States ◽  
Solid Phase ◽  
Lead Free ◽  
Inorganic Hybrid ◽  
Hybrid Compounds ◽  
Direct Emission ◽  
First Time

We report, for the first time, the solid-phase gram-scale synthesis of two lead-free, zero-dimensional (0D) fluorescent organic–inorganic hybrid compounds, [Bu4N]2[MnBr4] (1) and [Ph4P]2[MnBr4] (2).

Lead-free organic–inorganic hybrid semiconductors and NLO switches tuned by dimensional design

2021 ◽  
Vol 9 (12) ◽  
pp. 4338-4343
Author(s):  
Hong-Yi Shen ◽  
Lei He ◽  
Ping-Ping Shi ◽  
Qiong Ye
Keyword(s):  
Hybrid Materials ◽  
Lead Free ◽  
Inorganic Hybrid ◽  
Hybrid Semiconductors ◽  
Functional Regulation

Two organic–inorganic hybrid materials exhibit functional regulation by introducing homochiral cations and different reagent ratios.

Efficient organic manganese (II) bromide green-light-emitting diodes enabled by manipulating hole and electron transport layer

2021 ◽  
Author(s):  
Hyunsik Im ◽  
Atanu Jana ◽  
Vijaya Gopalan Sree ◽  
QIANKAI BA ◽  
Seong Chan Cho ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Green Light ◽  
Transport Layer ◽  
Lead Free ◽  
Electron Transport Layer ◽  
Flat Panel Displays ◽  
Flat Panel ◽  
Inorganic Hybrid ◽  
Light Emitting ◽  
Light Emitting Devices

Lead-free, non-toxic transition metal-based phosphorescent organic–inorganic hybrid (OIH) compounds are promising for next-generation flat-panel displays and solid-state light-emitting devices. In the present study, we fabricate highly efficient phosphorescent green-light-emitting diodes...

Precursor engineering for high-quality Cs2AgBiBr6 films toward efficient lead-free double perovskite solar cells

2021 ◽  
Author(s):  
Ping Hou ◽  
Wenxiang Yang ◽  
Ning Wan ◽  
Zhi Fang ◽  
Jinju Zheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Control Sample ◽  
Double Perovskite ◽  
Lead Free ◽  
High Quality ◽  
Precursor Engineering ◽  
First Time

We report a facile BiBr3(DMSO)2 adduct process to produce high-quality Cs2AgBiBr6 films with large grains for the first time, which leads to an enhancement of over 40% on the PCE of Cs2AgBiBr6-based solar cells compared to that of the control sample.

Optimization of thermal conductivity in composites loaded with the solid-solid phase-change materials

2018 ◽  
Vol 25 (6) ◽  
pp. 1157-1165
Author(s):  
Taoufik Mnasri ◽  
Adel Abbessi ◽  
Rached Ben Younes ◽  
Atef Mazioud
Keyword(s):  
Thermal Conductivity ◽  
Phase Change ◽  
Phase Change Materials ◽  
Solid Phase ◽  
Spherical Inclusions ◽  
First Case ◽  
The Matrix ◽  
Composite Conductivity ◽  
First Time

AbstractThis work focuses on identifying the thermal conductivity of composites loaded with phase-change materials (PCMs). Three configurations are studied: (1) the PCMs are divided into identical spherical inclusions arranged in one plane, (2) the PCMs are inserted into the matrix as a plate on the level of the same plane of arrangement, and (3) the PCMs are divided into identical spherical inclusions arranged periodically in the whole matrix. The percentage PCM/matrix is fixed for all cases. A comparison among the various situations is made for the first time, thus providing a new idea on how to insert PCMs into composite matrices. The results show that the composite conductivity is the most important consideration in the first case, precisely when the arrangement plane is parallel with the flux and diagonal to the entry face. In the present work, we are interested in exploring the solid-solid PCMs. The PCM polyurethane and a wood matrix are particularly studied.

scholarly journals Magnetic solid phase extraction with octahedral structured Fe3O4@SiO2@polydimethylsiloxane magnetic nanoparticles as the sorbent for determining benzene, toluene, ethylbenzene and xylenes in water samples

RSC Advances ◽  
2017 ◽  
Vol 7 (66) ◽  
pp. 41862-41868 ◽  
Author(s):  
Maosheng Zhang ◽  
Guobin Huang ◽  
Jiarong Huang ◽  
Ling Zhong ◽  
Weilan Chen
Keyword(s):  
Magnetic Nanoparticles ◽  
Solid Phase Extraction ◽  
Water Samples ◽  
Solid Phase ◽  
Magnetic Solid Phase Extraction ◽  
Phase Extraction ◽  
Benzene Toluene ◽  
Magnetic Solid ◽  
First Time

Novel octahedral structured Fe3O4@SiO2@polydimethylsiloxane magnetic nanoparticles (Fe3O4@SiO2@PDMS MNPs) have been successfully synthesized for the first time.

scholarly journals Influence of Ligand Functionalization of UiO-66-Based Metal-Organic Frameworks When Used as Sorbents in Dispersive Solid-Phase Analytical Microextraction for Different Aqueous Organic Pollutants

Molecules ◽  
2018 ◽  
Vol 23 (11) ◽  
pp. 2869 ◽  
Author(s):  
Iván Taima-Mancera ◽  
Priscilla Rocío-Bautista ◽  
Jorge Pasán ◽  
Juan Ayala ◽  
Catalina Ruiz-Pérez ◽  
...  
Keyword(s):  
High Performance ◽  
Solid Phase ◽  
Metal Organic Frameworks ◽  
Aqueous Sample ◽  
Optimization Study ◽  
Relative Standard ◽  
Polycyclic Aromatic ◽  
Metal Organic ◽  
Array Detection ◽  
First Time

Four metal-organic frameworks (MOFs), specifically UiO-66, UiO-66-NH2, UiO-66-NO2, and MIL-53(Al), were synthesized, characterized, and used as sorbents in a dispersive micro-solid phase extraction (D-µSPE) method for the determination of nine pollutants of different nature, including drugs, phenols, polycyclic aromatic hydrocarbons, and personal care products in environmental waters. The D-µSPE method, using these MOFs as sorbents and in combination with high-performance liquid chromatography (HPLC) and diode-array detection (DAD), was optimized. The optimization study pointed out to UiO-66-NO2 as the best MOF to use in the multi-component determination. Furthermore, the utilization of isoreticular MOFs based on UiO-66 with the same topology but different functional groups, and MIL-53(Al) to compare with, allowed us for the first time to evaluate the influence of such functionalization of the ligand with regards to the efficiency of the D-µSPE-HPLC-DAD method. Optimum conditions included: 20 mg of UiO-66-NO2 MOF in 20 mL of the aqueous sample, 3 min of agitation by vortex and 5 min of centrifugation, followed by the use of only 500 µL of acetonitrile as desorption solvent (once the MOF containing analytes was separated), 5 min of vortex and 5 min of centrifugation. The validation of the D-µSPE-HPLC-DAD method showed limits of detection down to 1.5 ng·L−1, average relative recoveries of 107% for a spiked level of 1.50 µg·L−1, and inter-day precision values with relative standard deviations lower than 14%, for the group of pollutants considered.

scholarly journals THE PRODUCTION OF MONOCLONAL ANTIBODIES TO TETRASACCHARIDE - SYNTHETIC ANALOGUE OF THE CAPSULAR POLYSACCHARIDE OF STREPTOCOCCUS PNEUMONIAE OF SEROTYPE 14 AND THEIR IMMUNOCHEMICAL CHARACTERIZATION

2018 ◽  
pp. 26-31
Author(s):  
I. V. Yakovleva ◽  
E. A. Kurbatova ◽  
E. A. Akhmatova ◽  
E. V. Sukhova ◽  
D. V. Yashunsky ◽  
...  
Keyword(s):  
Monoclonal Antibodies ◽  
Streptococcus Pneumoniae ◽  
Capsular Polysaccharide ◽  
Solid Phase ◽  
Synthetic Analogue ◽  
Immunochemical Characterization ◽  
Carbohydrate Epitopes ◽  
First Time

Aim. Production of monoclonal antibodies (mAb) to synthetic tetrasaccharide - repeating unit of the capsular polysaccharide (CP) of Streptococcus pneumoniae serotype 14 and their immunochemical characterization. Materials and methods. In order to generate the hybridoma producing mAb, mice were immunized with synthetic tetrasaccharide conjugated with bovine serum albumin (BSA) with following hybridization of B lymphocytes with mouse myeloma cells. Antibodies were obtained in vitro andin vivo. Immunochemical characterization of mAb to tetrasaccharide was carried out using a variety of ELISA options. Results. For the first time obtained mouse hybridoma, producing IgM to tetrasacchride. The IgM titer of anti-tetrasacharide antibodies in supernatants of clones and in the ascitic fluid of mice in ELISA detected by biotinylated tetrasaccharide and synthetic CP adsorbed on the solid phase was higher compared to the use of bacterial CP as well cover antigen. In the reaction of inhibition of the ELISA, the mAb recognized the corresponding carbohydrate epitopes of the bacterial CP of S. pneumoniae serotype 14 dissolved in the liquid phase better than tetrasaccharide ligand and synthetic CP. Conclusion. To detect mAb to tetrasaccharide in ELISA preferably to use synthetic analogues of the CP as solid phase antigens. The obtained mAb to tetrasaccharide can be used to determine the representation of the protective tetrasaccharide epitope of CP in the development of pneumococcal vaccines.

Novel Organic-Inorganic Hybrid Compounds Containing Alkyldiammonium Salts

2002 ◽  
Vol 376 (1) ◽  
pp. 89-94 ◽  
Author(s):  
Takashi Matsui ◽  
Mitsuyasu Kawahara ◽  
Kenjiro Teshima ◽  
Masahiro Rikukawa ◽  
Kohei Sanui
Keyword(s):  
Inorganic Hybrid ◽  
Hybrid Compounds
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