Results 91 to 100 of about 186,481 (284)

UV Photocatalytic Activity for Water Decomposition of SrxBa1−xNb2O6 Nanocrystals with Different Components and Morphologies

Journal of Chemistry, 2017
Strontium barium niobate SrxBa1-xNb2O6 (SBN) nanocrystals with different components (x=0.2, 0.4, 0.6, and 0.8) were synthesized by Molten Salt Synthesis (MSS) method at various reaction temperatures (T = 950°C, 1000°C, 1050°C, and 1100°C).
Guoqiang Han, Shuguang Cao, Bo Lin
doaj   +1 more source

Growth of Millimeter‐Sized BaTaO2N Single Crystals by an NH3‐Assisted BaCl2 Flux Method

Advanced Functional Materials, EarlyView.
Millimeter‐sized BaTaO2N single crystals are successfully grown from a BaCl2 flux under NH3 flow. Their comprehensive characterization, including dielectric properties, is demonstrated, and the possible growth mechanisms are discussed. Abstract Perovskite‐type oxynitrides have attracted considerable attention due to their excellent photocatalytic ...
Ginji Harada, Mirabbos Hojamberdiev, Hajime Wagata   +2 more
wiley   +1 more source

Single particle fluorescence imaging of perovskite nanocrystal crystallization for illustrating coupled nucleation-and-growth

Nature Communications
Because of the lack of spatiotemporal characterization techniques, it has been of great challenge to investigate the crystallization of nanocrystals.
Lige Liu, Dashan Dong, Zhiwei Long, Wanxue Wei, Chang Sun, Wei Liu, Xiaoshuai Huang, Liangyi Chen, Haizheng Zhong, Kebin Shi   +9 more
doaj   +1 more source

Composition and Morphology of Nanocrystals in Urines of Lithogenic Patients and Healthy Persons

Bioinorganic Chemistry and Applications, 2009
The composition and morphology of nanocrystals in urines of healthy persons and lithogenic patients were comparatively investigated by means of X-ray diffraction (XRD) and transmission electron microscopy (TEM).
Bao-Song Gui, Rong Xie, Xiu-Qiong Yao, Mei-Ru Li, Jian-Ming Ouyang   +4 more
doaj   +1 more source

Hexagonal spiral growth in the absence of a substrate

, 2008
Experiments on the formation of spiraling hexagons (350 - 1000 nm in width) from a solution of nanoparticles are presented. Transmission electron microscopy images of the reaction products of chemically synthesized cadmium nanocrystals indicate that the ...
C. Kittel, L. L. A. Adams, R. W. Cahn
core   +1 more source

RoHS‐Compliant, Cu‐Zn‐In‐Se‐Based Core/Multi‐shell Quantum Dots with Efficient and Tunable Short‐Wave Infrared Emission

Advanced Functional Materials, EarlyView.
An innovative combination of size‐controlled template synthesis, partial cation exchange reactions, and dual shell passivation offers a new class of RoHS‐compliant, heavy metal‐free Cu‐Zn‐In‐Se/ZnS/Al2O3 core/shell/shell quantum dots (QDs), exhibiting long‐range tunability, highly efficient SWIR emission with remarkably narrow photoluminescence ...
Avijit Saha, Morena Cervino, Hossein Roshan, René Hübner, Angelika Wrzesińska‐Lashkova, Christine Steinbach, Yana Vaynzof, Francesco Di Stasio, Vladimir Lesnyak   +8 more
wiley   +1 more source

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

Advanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee, Inhoo Choi, Anara Molkenova, Yengwoo Son, Seungmin Yang, Mina Kwon, Tae‐Im Kim, Ki Su Kim, Sei Kwang Hahn   +8 more
wiley   +1 more source

Alloying at the nanoscale

Materials & Design
We report a general flash arc synthesis (FAS) method to batch fabricate alloy micro/nanocrystals of up to eight components on a wafer-scale. Combined with experiments and first-principle calculations, we show that the shape and size distribution of ...
Cai Lu, Bozhao Wu, Yangyang Pan, Hui Fang, Jianxin Liu, Xiaoqi Yang, Ze Liu   +6 more
doaj   +1 more source

Tight-binding g-Factor Calculations of CdSe Nanostructures

, 2003
The Lande g-factors for CdSe quantum dots and rods are investigated within the framework of the semiempirical tight-binding method. We describe methods for treating both the n-doped and neutral nanostructures, and then apply these to a selection of ...
A.A. Kiselev, A.C. Carter, A.J. Stone, A.V. Rodina, B.F. Minaev, C. Wang, C.P. Keijzers, D.D. Awschalom, D.J. Chadi, E. Johnston-Halperin, J. Hu, J. Hu, J.A. Gupta, J.A. Gupta, J.T. Törring, Joshua Schrier, K. Birgitta Whaley, K. Leung, K. Leung, L. Manna, M. Kuno, M. Shim, M.C. Troparevsky, P. Vogl, P.E. Lippens, P.J. Bratt, S. Patchkovskii, S. Pokrant, S.A. Wolf, Y.-W. Hsiao   +29 more
core   +1 more source

Insight into the Internal Structure of Biogenic, Synthetic and Geological Apatite by Electron Microscopy and X‐Ray Scattering

Advanced Functional Materials, EarlyView.
Apatite occurs in many forms in nature, e.g. in teeth and geological minerals. Internally, biological apatite contains nanocrystals that are also found in synthetically prepared calcium phosphate nanoparticles which are used in biomedicine, e.g. for gene and drug delivery and for bone regeneration. Abstract Calcium phosphate is the inorganic component (
Kathrin Kostka, Oleg Prymak, Kateryna Loza, Matthias Epple   +3 more
wiley   +1 more source