化學(xué)氣相沉積 ZnS  （ CVD ZnS ）

化學(xué)氣相沉積硫化鋅是一種性能優(yōu)異的紅外光學(xué)材料,，廣泛用作紅外窗口,、球罩和光學(xué)元件。

采用自主研發(fā)的化學(xué)氣相沉積技術(shù),，以鋅和硫化氫氣體為原料,，生產(chǎn)出了高質(zhì)量的化學(xué)氣相沉積硫化鋅產(chǎn)品,，并可向客戶提供標(biāo)準(zhǔn)及多光譜硫化鋅產(chǎn)品。

標(biāo)準(zhǔn)硫化鋅在8-12μm波段上具有很好的透過(guò)率和折射率均勻性,，高強(qiáng)度和化學(xué)穩(wěn)定性使其可以再惡劣的環(huán)境中使用,。

多光譜硫化鋅是由標(biāo)準(zhǔn)硫化鋅經(jīng)過(guò)熱等靜壓處理獲得的，具備從可見光到長(zhǎng)波紅外波段的全波段透射性能,。我們生產(chǎn)的多光譜硫化鋅在1.06μm有很高的透過(guò)率,，能夠滿足多波段復(fù)合的使用要求,。

     物理性能                                                                                                              

    元素符號(hào)                                                                     ZnS

    晶體結(jié)構(gòu)                                                                     Cubic

    熔點(diǎn)（℃）                                                                     1830

    密度（g/cm³）                                                                4.09

    純度                                                                          > 99.9995%

    帶隙                                                                          3.66eV（@300K）

     光學(xué)性能                                                                                                             

    折射率系數(shù)（室溫20℃）

    FLIR Grade                                                  Water-clear Grade

    Wavelength（μm）               n                            Wavelength（μm）               n

    0.50                             2.419                         0.5086                       2.41279

    0.70                             2.332                         0.7065                       2.33073

    1.00                             2.292                         1.0140                       2.29165

    3.00                             2.257                         3.000                         2.25772

    5.00                             2.246                         5.000                         2.24661

    7.00                             2.232                         8.000                         2.22334

    8.20                             2.221                         10.000                        2.20084

    10.20                           2.198                         11.250                        2.18317

    11.0                             2.186

    吸收系數(shù) （@10.6μm, cm^-1）                              ≤ 0.2                        ≤ 0.2

    折射率均勻性 （@0.6328μm）                              < 5×10^-5                        < 5×10^-5

    熱光系數(shù)（dn/dt）                                            6.4×10^-5（@0.63μm）    5.4×10^-5（@0.63μm）

                                                                     4.2×10^-5（@1.15μm）    5.0×10^-5（@1.15μm）

                                                                     4.6×10^-5（@3.39μm）    4.6×10^-5（@3.39μm）

                                                                     6.6×10^-5（@10.6μm）    4.6×10^-5（@10.6μm）

    熱性能                                                                                                                                    

                                              FLIR Grade                       Water-clear Grade

    熱膨脹系數(shù)（10^-6, ℃^-1）              7.85                                  7.85

    斷裂模量（Mpa）                        103.4 （@room temperature）    68 （@room temperature）

                                                  160 （@660℃）                         160 （@600℃）

    熱導(dǎo)率 （@300K,Wcm^-1.K^-1）         0.19                                   0.272

    比熱 （Cal/g.K）                          0.112                                 0.124

    機(jī)械性能                                                                                                                               

    楊氏模量（Gpa）                         74.5                                  74.5

    泊松比                                    0.29                                  0.28

    努式硬度（kg/mm²）                    200-230                             160

     產(chǎn)品說(shuō)明                                                                                                                  

    形狀                                                                圓形：窗口,，球面透鏡

                                                                           矩形：窗口

                                                                           特殊：頭罩，棱鏡

    zui大尺寸                                                          圓形：∮250×12mm

                                                                           矩形：250×200×12mm

                                                                           頭罩：∮300

    公差                                                                 直徑：+/- 0.05mm

                                                                            長(zhǎng)度和寬度：+/- 0.05mm

                                                                            厚度：+/- 0.05mm

                                                                            口徑：+/- 0.05mm

    表面質(zhì)量                                                           平片：切片

                                                                            拋光窗口/頭罩：根據(jù)客戶需要