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硫化镉

  • 所属分类:硫化镉

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  • 发布日期:2017/04/01
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详细介绍

cadmium sulfide

CdS

中文名称:硫化镉[1] 

中文别名:镉黄;分散黄

英文名称:Cadmium Sulfide

英文别名:Cadmium sulfide yellow orange powder; cadmium sulphide; Cadmium Yellow,Pigment yellow 37

CAS number 1306-23-6

PubChem 14783

ChemSpider 7969586

UNII 057EZR4Z7Q

EC number 215-147-8

UN number 2570

RTECS number EV3150000

HS:28309090

    高纯度硫化镉是良好的半导体,对可见光有强烈的光电效应,可用于制光电管、太阳能电池。将硫化氢通入镉盐的酸溶液中制取。一种N型光电导半导体材料。属Ⅱ-Ⅵ族化合物半导体。化学式CdS,分子量144.476,属六方晶格结构,晶格常数5.86×10-10m,熔点1750℃,禁带宽度2.41电子伏,电子和空穴的迁移率分别为2×10-2和2×10-3米2/伏·秒,相对介电常数11.6。硫化镉由于不易制成单晶,因而虽然它比锗、硅和砷化镓还早进入实用阶段,但对它的研究还很不深入,使用时也大多用其多晶烧结体和薄膜。硫化镉是灵敏度较高的N型光电导器件材料,也是压电器件材料。它与硫化锌的固溶体可制成激光波长为(3300~4900)×10-10米的激光器;与硒化镉的固溶体可制成激光波长为(4900~6750)×10-10米的激光器;与碲化镉制成的薄膜异质结太阳能电池虽然效率低于10%,但价格便宜,并且可制成大面积器件。

     High purity cadmium sulfide is a good semiconductor, visible light have a strong sense of the photoelectric effect, can be used in photoelectric cells, solar cells.Hydrogen sulfide into acid solution of cadmium salts preparation.An n-type photoconductive semiconductor materials.Genus ⅱ-ⅵ compound semiconductors.Chemical formula for CdS, the molecular weight is 144.476, is a hexagonal structure, lattice constants 5.86x10-10m, melting point of 1750 ℃, the band gap of 2.41 trillion electron volts, electron and hole migration rate was 2x10-2 and 2x10-3 m 2/v second, relative dielectric constant of 11.6.CDs less readily made from Crystal, although it earlier than Silicon Germanium, and gallium arsenide, also entered the practical stage, but it is still not an in-depth, using mostly sintered polycrystalline and thin films.N-type cadmium sulfide is a high sensitivity optical conductivity material and piezoelectric material.Its laser wavelengths can be made of solid solution with zinc sulfide (3300~4900) laser X10-10 metres;Laser wavelengths can be made of solid solution of cadmium selenide (4900~6750) laser X10-10 metres;Made with cadmium telluride thin film heterojunction solar cell efficiency is lower than 10%, but the price is cheap, and can be made into large-area components.


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