化學氣相沉積 ZnS  （ CVD ZnS ）

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

采用自主研發的化學氣相沉積技術，以鋅和硫化氫氣體為原料，生產出了高質量的化學氣相沉積硫化鋅產品，并可向客戶提供標準及多光譜硫化鋅產品。

標準硫化鋅在8-12μm波段上具有很好的透過率和折射率均勻性，高強度和化學穩定性使其可以再惡劣的環境中使用。

多光譜硫化鋅是由標準硫化鋅經過熱等靜壓處理獲得的，具備從可見光到長波紅外波段的全波段透射性能。我們生產的多光譜硫化鋅在1.06μm有很高的透過率，能夠滿足多波段復合的使用要求。

     物理性能                                                                                                              

    元素符號                                                                     ZnS

    晶體結構                                                                     Cubic

    熔點（℃）                                                                     1830

    密度（g/cm³）                                                                4.09

    純度                                                                          > 99.9995%

    帶隙                                                                          3.66eV（@300K）

     光學性能                                                                                                             

    折射率系數（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 （@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（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（10^-6, ℃^-1）              7.85                                  7.85

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

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

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

    比熱 （Cal/g.K）                          0.112                                 0.124

    機械性能                                                                                                                               

    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

     產品說明                                                                                                                  

    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

                                                                            長度和寬度：+/- 0.05mm

                                                                            厚度：+/- 0.05mm

                                                                            口徑：+/- 0.05mm

    表面質量                                                           平片：切片

                                                                            拋光窗口/頭罩：根據客戶需要