本論文分為三部分，第一部分探討二硫化鎢剝落機制以及將其奈米片與超奈米鑽石摻雜為複合材料，並對其做光特性分析，接著探討不同水熱時間對二硫化鎢摻雜鑽石奈米片之品質，並對其做物性及電性分析;第二部分將不同成長時間及通入不同流量之奈米鑽石，與二硫化鎢摻雜鑽石奈米片結合，並以不同分析儀器對其做品質分析，以及探討光特性之影響;第三部分探討不同蝕刻時間之矽奈米線與二硫化鎢摻雜鑽石奈米片及奈米鑽石之複合結構特性分析，探討其品質及光特性影響。
研究發現，不同比例之乙醇與去離子水所剝離出之二硫化鎢奈米片密度不一，當乙醇及去離子水比例較少時，溶液幾乎呈透明狀，當兩者比例接近1:1時之濃度最濃，代表剝離出之奈米片數量較多，而經實驗得知乙醇與去離子水比例為7:3時之光響應最佳。接著將其與超奈米鑽石摻雜形成複合結構，發現同樣乙醇與去離子水比例為7:3時之光響應更高，達到1.01 A/W，而加入摻氮之超奈米鑽石可使穩定性提升許多;加入摻氬之超奈米鑽石可使開關燈比率從254上升到908，最後一部分將矽基板經由不同時間之蝕刻成為矽奈米線，可造成光捕獲效應，使響應值到達0.513 A/W，且響應時間縮短為0.467秒，而其穩定性也相對提升。

In this study, the tungsten disulfide nanosheets were first stripped from different ratios of ethanol and DI Water. It is found that the photo response is the highest when the ratio of ethanol to deionized water is 7:3. Then it was doped with ultrananocrystalline diamond sheets to form a hybrid nanosheets structure(WS2-ND). It was observed that the photo response can reach to 1.01 A/W when the ratio of ethanol to deionized water was 7:3.
Finally, the ultra-nanocrystalline diamond film (UNCD) were used as the substrates for the WS2-ND hybrid structure. It is indicated that the stability increases for the WS2-ND/NUNCD hybrid structure. It is also noted that the switch ratio increases from 254(WS2-ND) to 908(WS2-ND/Ar-UNCD). This work provide a simple and promising approach for photodetector applications.

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