本論文利用非配位法與配位法進行硒化鋅奈米晶體的成長，主要的參數有：成長溫度、表面活性劑種類與反應物之間的莫耳數比例等，經光譜性質分析與晶體結構分析後，獲得最佳化成長條件。於非配位法中，根據吸收光譜與激發光譜的分析可發現：光譜的半高寬值皆寬化且呈現非對稱。此外，硒化鋅奈米晶體粒徑變化於短時間即達到最大值；而在結構分析上呈現纖鋅礦結構，又因為表面缺陷過多，導致螢光量子效率僅約為1%。在配位法中，最佳化成長條件為：注入溫度/成長溫度為140℃/260℃，表面活性劑為十六胺，從激發光譜分析中顯示，光譜的半高寬值約為24nm並為一對稱光譜，由結構分析可知奈米晶體結構呈現閃鋅礦結構且型態為球狀，粒徑分佈也較均勻。但由於鋅反應物易氧化成氧化鋅，而使螢光量子效率約為2.5%。
在本研究中亦結合吸收光譜與感應耦合電漿原子發射光譜儀求得硒化鋅奈米晶體之消光係數與晶體粒徑的經驗關係式，以做為未來進行量子點光電元件時估計硒化鋅奈米晶體濃度之用。
最後本實驗利用成長時間與奈米晶體粒徑的變化關係，經成長機制模擬後，推測硒化鋅奈米晶體之成長機制為二階段Ostwald ripening成長模式，其活化能分別為99 J/mol與 128.65 2.1J/mol。

In this study, ZnSe nanocrystals were grown using non-coordinating and coordinating method with different growth temperature, surfactants and reactant molar ratio. In non-coordinating method, the optical properties of nanocrystals were analyzed by UV-Visible absorption spectroscopy and photoluminescence (PL) spectroscopy to achieve optimum growth parameters. According to UV-Visible and PL spectroscopy analysis, we can observe that the full widths of half-maximum (FWHM) were board and PL spectra were asymmetry. Additionally, the sizes of ZnSe naoncrystals arrived at a stable value in a short time. In structure analysis, the dominant structure of ZnSe nanocrystalline fabricating by non-coordinating method is wurtzite. Due to surface states existed in crystal, the quantum yield was only about 1%. In coordinating method, injection/growth temperatures were 140℃/260℃ and HDA was used as surfactant. In PL spectroscopy analysis, the FWHM of ZnSe nanocrystals was 24nm and spectrum is symmetry. From structure analysis, the shapes of ZnSe nanocrystals were spherical and the structures were zinc blend. The size distribution of nanocrystals was more uniform in coordinating method. However, the ZnO phase was easily formed during fabricating, the quantum yield was only 2.5%.
Herein, we also try to find the relationship between extinction coefficient per mole and crystal size combining with absorption spectroscopy and inductively-coupled plasma atomic emission spectroscopy (ICP-AES). The relation can be used to estimate the concentration of nanocrystals and be applied on the fabrication of light emitting devices.
Finally, we use the relationship between nanocrystals size and growth time to deduce the growth mechanism in coordinating method. We demonstrated that the growth mechanism of ZnSe nanocrystals in coordinating method belonged to Ostwald ripening model with two stages. The activation energies of first stage and second stage were 99 J/mol and 128.65 2.1J/mol, respectively.

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