Defects widely exist in real crystals, and they play an important role in the properties of solids. Point defects are atomic defects whose effects are limited only to their immediate surroundings [8]. Examples are ionic vacancies in the regular crystal lattice, or interstitial atoms or ions. Ion...
In any case, folks eventually came around to seeing the value of composting. Some started it in their own properties and others happily handed them over to the town. But everyone learned the benefits of composting – using the mature compost to enrich their soils and appreciating how well it ...
Perovskite Quantum Dots and Their Application in Light‐Emitting Diodes Perovskite quantum dots (PQDs) attract significant interest in recent years because of their unique optical properties, such as tunable wavelength, narrow ... Wang, Hung-Chia,Z Bao,Tsai, Hsin-Yu,... - 《Small》 被引量: ...
Magnetic properties of all-organic liquid crystals containing a chiral five-membered cyclic nitroxide unit within the rigid core. Angew. Chem. Int. Ed. Engl. 2004, 43, 3677-3682.N. Ikuma, R. Tamura, S. Shimono, N. Kawame, O. Tamada, N. Sakai, J. Yamauchi, Y. Yamamoto, Magnetic ...
Whether hydrated from vapor or immersed in liquid water, aligned multibilayers of dimyristoylphosphatidylcholine adsorbed to a single mica "substrate" are shown by neutron diffraction to hydrate in all mesophases (e.g., L β′ , P β′ , and Lα) to the same extent as their liposomal count...
Cool, filter off the crystals and wash them with a few drops of cold H2O. Further concentration of the mother liquors provides more crystals. The complex is recrystallised from H2O as the colourless trihydrate. It effloresces in dry air and dehydrates at 100o to the monohydrate. The ...
Calcite (Calcium Carbonate, CaCO3) is a very common mineral that comes in a wide variety of forms, shapes and colors. Thetrigonalcrystals range from translucent to transparent. Transparent calcite exhibits a double refraction effect (when you look through the crystal, singel items are doubled)....
Pure Beryl is colorless; traces of different impurities are responsible for the color diversity and varieties. History has deemed the first people to use crystals for divination were the Druids in Britain about 2000 BC. The Druids were a very spiritual people. They were priests, teachers, couns...
BeadSpherical agate beads commonly found in necklaces, bracelets and earrings, available in a range of sizes from tiny to large. GeodeAgates with hollow cavities lined with crystals and intricate patterns formed in the center as they grow. Geodes add an element of natural beauty to any space, ...
These studies were undertaken for understanding the role of the A cation in their band structure and band gap energy characteristics. The calculations were initiated by finding the optimum lattice constants and the lowest total energy of these APbBr3 crystals. Ultrasoft pseudopotentials with GGA-PBE ...