Complex PbTe hopper (skeletal) crystals with high hierarchy.
نویسندگان
چکیده
A facile and mild solution method has been discovered for the synthesis of complex PbTe hopper crystals in large quantities, which are highly similar to the cubic halite skeletal crystals formed from extreme supersaturation in salt lakes existing in nature. This route may provide a new approach to growing other complex semiconductor structures of high hierarchy.
منابع مشابه
بررسی بافتهای نامتعادل و شیمی کانیها در مجموعه سنگهای الترامافیک - مافیک خاور فریمان، شمال خاوری ایران
On the basis of petrographic observations and electron microprobe analyses data set on major and minor minerals from ultramafic- mafic rock suite with komatiitic to picritic - tholeiitic affinity, East of Fariman, we have investigated some of the petrological features of their parental magmas and condition of minerals crystallization. Major minerals in ultramafic rocks show various disequilibri...
متن کاملSimple cubic super crystals containing PbTe nanocubes and their core-shell building blocks.
We report a preparation of high-quality cubic PbTe nanocrystals and their assembly into both square-array, two-dimensional patterns and three-dimensional simple cubic super crystals. The influence of oleylamine in the nanocrystal synthesis and core-shell formation through an anion-exchange mechanism was also studied. The simple cubic super crystals together with two-dimensional assembly pattern...
متن کاملGROWTH OF 11 DOPED PbTe SINGLE CRYSTALS BY THE TRAVELLING HEATER METHOD
The travelling heater method (THM) has proved zone and the doped feed material (all 12 mm to be a suitable technique to grow highly perfect diameter) was put into a silica ampoule. The single crystals in a great variety of compounds, evacuated and closed ampoule was placed in a especially of Il—VI and Ill—V compounds. It offers small vertical resistance heater without any afterinteresting advan...
متن کاملMetastability Limit for the Nucleation of NaCl Crystals in Confinement.
We study the spontaneous nucleation and growth of sodium chloride crystals induced by controlled evaporation in confined geometries (microcapillaries) spanning several orders of magnitude in volume. In all experiments, the nucleation happens reproducibly at a very high supersaturation S ∼ 1.6 and is independent of the size, shape, and surface properties of the microcapillary. We show from class...
متن کاملMASSES OF FREE CARRIERS IN LEAD TELLURIDEs THEIR TEMPERATURE DEPENDENCE AND CONTRIBUTION TO TRANSPORT PROPERTIES
Single crystals of both n-type and p-type PbTe were grown by the BridgmanStockbarger technique. Very smooth and highly-reflective crystals were obtained when the PbTe material lowered through the furnace had been previously distilled in a vacuum (~-10-5 mm). From measurements of the Hall Effect and of the electrical conductivity on 3 nand 9p-type samples of PbTe, all with free-carrier concentra...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Chemical communications
دوره 46 شماره
صفحات -
تاریخ انتشار 2005