臺灣博碩士論文加值系統

碲化鎘單晶分別以travelling heater method及solution growth method
成長。然後以EDS、XRD、EER、FTIR測量其特性。 由實驗的結果得知碲化
鎘摻雜鋅將形成─碲化鋅鎘（ZnxCd1-xTe）之三元化合物，其能隙較碲化
鎘增加，而晶格結構仍維持碲化鎘一樣的閃鋅結構，但晶格常數較小。碲
化鎘摻雜鉻則呈現一般雜質的行為，其晶體結構、晶格常數、能隙、能隙
溫度係數都沒有明顯變化。NIR的穿透光譜層因鉻的濃度增加而有能帶吸
收邊緣拉寬的現象。

The crystals of Cadmium Telluride had been grown by heater
method (THM) and solution growth method,then studied by EDS,XRD,
EER and FTIR. The result of experiments is that CdTe doped Zn
is formed a ternary compound Zinc Cadmium Telluride（ZnxCd1-xTe
）.Its energy gap is largerthan CdTe,and lattice constant less
than CdTe.CdTe doped Cr has not any obvious change in energy
gap or transmitance spectrum in NIR is broadening when the
concentration of Cr increases.