Showing 1-30 of 48 results for "202126"
Eun-Jung Park et al.
Toxicology letters, 230(1), 69-79 (2014-08-12)
In this study, we identified the toxic effects of sheet-type titania (TNS), which are being developed as a material for UV-blocking glass, comparing with P25, a benchmark control for titania, in MH-S cells, a mouse alveolar macrophage cell line. After...
Xi Zhang et al.
Small (Weinheim an der Bergstrasse, Germany), 11(45), 6091-6096 (2015-10-20)
A one-step method to produce ≈12 nm hydrodynamic diameter water-soluble CdSe/ZnS quantum dots (QDs), as well as CdS/ZnS, ZnSe/ZnMnS/ZnS, AgInS2 /ZnS, and CuInS2 /ZnS QDs, by ligand exchange with a near-monolayer of organosilane caps is reported. The method cross-links the...
Hiroshi Matsui et al.
The Journal of chemical physics, 143(2), 024503-024503 (2015-07-17)
In low dimensional cesium silicate LDS-1 (monoclinic phase of CsHSi2O5), anomalous infrared absorption bands observed at 93, 155, 1210, and 1220 cm(-1) are assigned to the vibrational mode of protons, which contribute to the strong hydrogen bonding between terminal oxygen...
Michael A Becker et al.
Nature, 553(7687), 189-193 (2018-01-13)
Nanostructured semiconductors emit light from electronic states known as excitons. For organic materials, Hund's rules state that the lowest-energy exciton is a poorly emitting triplet state. For inorganic semiconductors, similar rules predict an analogue of this triplet state known as...
Elena V Ushakova et al.
Nanotechnology, 30(40), 405206-405206 (2019-06-28)
Nanostructured luminescent materials based on perovskite nanocrystals (p-NCs) are attractive since their optical properties can be tuned in a wide spectral range with high luminescence quantum yields and lifetimes, however, they lack stability. In this work, the optical properties of...
Paribesh Acharyya et al.
Nanoscale, 11(9), 4001-4007 (2019-02-16)
Two-dimensional (2D) perovskites recently attracted significant interest due to their unique and novel optoelectronic properties. CsPb2Br5, a 2D inorganic perovskite halide, is an indirect band gap semiconductor, and hence it is not supposed to be luminescent. However, a fundamental understanding...
Ved Vati Singh et al.
Dalton transactions (Cambridge, England : 2003), 43(33), 12555-12563 (2014-07-10)
Nanoflowers and nanospheres of Pd4S have been prepared for the first time from a single source precursor complex, [PdCl2(PhS-CH2CH2CH2-NH2)] (), by its one pot thermolysis at 195 °C. In oleylamine, flower shaped nanoparticles of Pd4S were formed but in an...
Eider A Erazo et al.
Nanomaterials (Basel, Switzerland), 10(8) (2020-08-19)
α-CsPbI3 quantum dots (QDs) show outstanding photoelectrical properties that had been harnessed in the fabrication of perovskite QDs solar cells. Nevertheless, the stabilization of the CsPbI3 perovskite cubic phase remains a challenge due to its own thermodynamic and the presence...
Leyre Gomez et al.
Nanoscale, 9(2), 631-636 (2016-12-13)
Cesium lead halide perovskite nanocrystals are being lately explored for optoelectronic applications due to their emission tunability, high photoluminescence quantum yields, and narrow emission bands. Nevertheless, their incompatibility with polar solvents and composition homogenization driven by a fast anion-exchange are...
Chu, F. et al.
Tetrahedron Letters, 40, 1847-1847 (1999)
Sangeun Cho et al.
Light, science & applications, 9, 156-156 (2020-09-24)
Compared with solid scintillators, liquid scintillators have limited capability in dosimetry and radiography due to their relatively low light yields. Here, we report a new generation of highly efficient and low-cost liquid scintillators constructed by surface hybridisation of colloidal metal...
Nanjia Zhou et al.
Science advances, 5(5), eaav8141-eaav8141 (2019-06-07)
One-dimensional (1D) nanomaterials with highly anisotropic optoelectronic properties are key components in energy harvesting, flexible electronics, and biomedical imaging devices. 3D patterning methods that precisely assemble nanowires with locally controlled composition and orientation would enable new optoelectronic device designs. As...
Tran Ngoc Huan et al.
Proceedings of the National Academy of Sciences of the United States of America, 116(20), 9735-9740 (2019-03-29)
Conversion of carbon dioxide into hydrocarbons using solar energy is an attractive strategy for storing such a renewable source of energy into the form of chemical energy (a fuel). This can be achieved in a system coupling a photovoltaic (PV)...
Gönül Yenilmez Çiftçi et al.
Journal of fluorescence, 25(6), 1819-1830 (2015-10-01)
In the present work, 3-[2-(diethylamino)ethyl]-7-oxy-4-methylcoumarin substituted cyclotriphosphazene (4) and cyclotetraphosphazene (5) derivatives were synthesized by the reactions of hexachlorocyclotriphosphazene (1) or octachlorocyclotetraphosphazene (2) with 3-[2-(diethylamino)ethyl]-7-hydroxy-4-methylcoumarin (3) for the first time. The quaternized cationic (6 and 7) and zwitterionic (8 and...
Selvam Amudhan Senthan et al.
Dalton transactions (Cambridge, England : 2003), 44(33), 14813-14822 (2015-07-30)
A new series of octanuclear Ru(ii) complexes of tolylterpyridine appended calixresorcarenes [{Ru(ttpy)}8()](PF6)16 (), [{Ru(ttpy)}8()](PF6)16 (), and [{Ru(ttpy)}8()](PF6)16 () [ = 2,8,14,20-tetraethyl-4,6,10,12,16,18,22,24-octa(4'-p-benzyloxy-(2,2':6',2''-terpyridinyl))calix[4]resorcarene; = 2,8,14,20-tetraphenyl-4,6,10,12,16,18,22,24-octa(4'-p-benzyloxy-(2,2':6',2''-terpyridinyl))calix[4]resorcarene; and = 2,8,14,20-tetra-p-tolyl-4,6,10,12,16,18,22,24-octa(4'-p-benzyloxy-(2,2':6',2''-terpyridinyl))calix[4]resorcarene] have been synthesized and characterized. The tetraethyl-, tetraphenyl-, and tetra-p-tolylcalixresorcarenes (), (), and ()...
Shuai Ye et al.
Advanced materials (Deerfield Beach, Fla.), 30(23), e1800167-e1800167 (2018-04-25)
Stimulated emission depletion (STED) nanoscopy is one of the most promising super-resolution imaging techniques for microstructure imaging. Commercial CdSe@ZnS quantum dots are used as STED probes and ≈50 nm lateral resolution is obtained. Compared with other quantum dots, perovskite CsPbBr3...
Qifeng Wang et al.
Journal of the American Chemical Society, 132(33), 11420-11421 (2010-08-06)
Dehydrohalogenative polycondensation of 2-bromo-3-hexylthiophene was successful with Herrmann's catalyst and tris(2-dimethylaminophenyl)phosphine as catalyst precursors, giving head-to-tail poly(3-hexylthiophene) (HT-P3HT) with high molecular weight (M(n) = 30,600, M(w)/M(n) = 1.60) and high regioregularity (98%) in almost quantitative yield (99%).
Xuesheng Zhang et al.
Environmental toxicology and pharmacology, 38(3), 881-890 (2014-12-03)
In the present study, the toxic effects of the oral exposure of 2-hydroxylated dioxin (2-HODD) in ICR male mice were examined. The mice were administered different doses (0.2, 2.0 and 20.0mg/kg) of 2-HODD. After 14 days of exposure, the oxidative...
Yeon Sil Park, et al
Tetrahedron Letters, 51, 3956-3959 (2010)
Vikash Kumar Ravi et al.
Journal of the American Chemical Society, 140(28), 8887-8894 (2018-06-22)
The suppression of halide ion exchange between CsPbBr3 and CsPbI3 nanocrystals achieved through capping with PbSO4-oleate has enabled us to deposit different perovskite nanocrystals as aligned arrays on the electrode surfaces without intermixing of species. The electrophoretic deposition of PbSO4-oleate-capped...
Abhijit Hazarika et al.
ACS nano, 12(10), 10327-10337 (2018-09-27)
We present a cation-exchange approach for tunable A-site alloys of cesium (Cs+) and formamidinium (FA+) lead triiodide perovskite nanocrystals that enables the formation of compositions spanning the complete range of Cs1- xFA xPbI3, unlike thin-film alloys or the direct synthesis...
Ming Liu et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 4(11), 1700335-1700335 (2017-12-05)
Bright and stable blue emitters with narrow full-width at half-maxima are particularly desirable for applications in television displays and related technologies. Here, this study shows that doping aluminum (Al
Aylin Uslu, et al
Inorgorganica Chimica Acta, 363, 3721-3726 (2010)
Chengxi Zhang et al.
Beilstein journal of nanotechnology, 8, 2521-2529 (2017-12-21)
Colloidal perovskite nanocrystals comprised of all inorganic cesium lead halide (CsPbX
Miriam Koolyk et al.
Nanoscale, 8(12), 6403-6409 (2016-02-04)
In this work we study the kinetics of cesium lead halide perovskite nanoparticle (NP) growth; the focusing and de-focusing of the NP size distribution. Cesium lead halide perovskite NPs are considered to be attractive materials for optoelectronic applications. Understanding the...
Shilpa N Raja et al.
ACS applied materials & interfaces, 8(51), 35523-35533 (2016-12-20)
Lead halide perovskites hold promise for photonic devices, due to their superior optoelectronic properties. However, their use is limited by poor stability and toxicity. We demonstrate enhanced water and light stability of high-surface-area colloidal perovskite nanocrystals by encapsulation of colloidal...
Feng Liu et al.
ACS nano, 11(10), 10373-10383 (2017-09-15)
Perovskite quantum dots (QDs) as a new type of colloidal nanocrystals have gained significant attention for both fundamental research and commercial applications owing to their appealing optoelectronic properties and excellent chemical processability. For their wide range of potential applications, synthesizing...
Ioannis Lignos et al.
ACS nano, 12(6), 5504-5517 (2018-05-15)
Hybrid organic-inorganic and fully inorganic lead halide perovskite nanocrystals (NCs) have recently emerged as versatile solution-processable light-emitting and light-harvesting optoelectronic materials. A particularly difficult challenge lies in warranting the practical utility of such semiconductor NCs in the red and infrared...
Ved Vati Singh et al.
Dalton transactions (Cambridge, England : 2003), 44(2), 725-732 (2014-11-20)
The metastable tetragonal Cu2Se phase as nanoflakes has been synthesized for the first time by treating CuCl2 taken in a mixture (1:1) of 1-octadecene and oleylamine with H2N-(CH2)3-SePh dissolved in 1-octadecene. Powder X-ray diffraction (PXRD), HRTEM, SEM-EDX and XPS have...
Yanan Liu et al.
Nanoscale, 10(29), 14067-14072 (2018-07-13)
The photoluminescence quantum yield (PLQY) of blue-violet emission of CsPbCl3 quantum dots (QDs) is still low, which has limited their application in multi-colour displays. It is important to search for efficient perovskite phosphors within this wavelength range. In this work...

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