大型管道混合器 博慧 自來水廠大型不銹鋼管道混合器 混合均勻 價格
BHHB-100 面議污水處理設備 污泥處理設備 水處理過濾器 軟化水設備/除鹽設備 純凈水設備 消毒設備|加藥設備 供水/儲水/集水/排水/輔助 水處理膜 過濾器濾芯 水處理濾料 水處理劑 水處理填料 其它水處理設備
上海巨納科技有限公司
上海巨納科技有限公司
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簡要描述：We offer most economic, massive size （0.5 grams）, and highly crystalline scientific grade black phosphorus （BPs） crystals.
We offer most economic, massive size (0.5 grams), and highly crystalline scientific grade black phosphorus (BPs) crystals. Black phosphorus is an infrared (IR) semiconductor with a bａnd gap of 0.3 eV in bulk which becomes ~1 eV when isolated down to monolayer (phosphorene). Our crystals are grown using special techniques (see below) in order to attain high crystalline anisotropy, minimal crystal defect density in the range of a record 3E9 - 1E10 cm-2 values, and high electronic / optical anisotropy. Thus, our crystals come ready for exfoliation with guaranteed crystalline, optical, and electronic anisotropy. Crystals are packaged under argon and is tightly seal to retain intrinsic properties of BPs crystals.
Growth technique matters: Conventional BPs growth typically involves chemical assisting agents such as Au, Sn, SnI4, and others to synthesize BPs crystals at low temperatures and low pressures. This process creates highly defected, low electronic mobility, and crystalline anisotropy crystals. Our company is dedicated to bringing electronic, optical, and scientific grade crystals. We synthesize our crystals at pressures as high as 2GPa to stabilize black phosphorus crystals without using any chemical assists (transport agents). Crystallization occurs over two (2) months period to ensure growth is slow enough to create defect free crystals. Yet, we still bring large quantities of BPs crystals at affordable rates. Note one order may contain more than one single crystal.
The properties of Black phosphorus crystals
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