- 學位論文
自組裝金奈米桿超分子結構複合物之製備與結構性質研究
Preparation and structure/properties of self-assembly supramolecular gold nanorod complex
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摘要
本研究為製備金奈米桿之超分子自組裝複合物，並探討不同H2O/DMF比例的混合溶劑對其光學性質的影響。將三聯吡啶(TPY)末端改質為含硫醇末端基的三聯吡啶(TPY-SH)，隨後和金奈米桿結合，形成TPY-Au-TPY結構，再分散於於不同比例的H2O/DMF溶液中，觀察其UV-vis光譜圖，可發現金奈米桿的特徵吸收峰會隨H2O含量的增加，造成在圖譜上位移變化，此雙親性複合物亦會形成束狀、束鏈狀、鏈狀或環狀自組裝結構。另外，利用金屬離子與配位基所產生的金屬-配位作用力，將TPY-Au-TPY與過渡金屬釕離子結合，由UV-vis圖譜得知確實會形成釕離子與三聯吡啶配位錯合之特徵吸收峰，以及造成原有的金奈米桿特徵吸收峰強度減弱，而由於釕離子和TPY會形成很穩定的結構，故再以TEM電鏡圖證實確定會形成尾對尾的鏈狀自組裝結構。
並列摘要
The amphiphilic supramolecular Au nanorod complex was prepared to study the effect of different ratio of mixed solvent H2O/DMF on its optical properties. The end-modified TPY-SH covalent bonding on the tips of Au nanorod to form TPY-Au-TPY structure, dissolves in mixed solvent with different ratio of H2O/DMF. The results of UV-vis reveal that the increasing H2O content affects on the wavelength of absorption. It indicates that the self-assembly supramolecular structure changes with solvent ratio to form various supramolecular structures like bundle, bundled chains, chains and rings. The metallo-supermolecular structure is prepared using the metal-coordination interaction between ruthenium ion (Ru2+) and terpyridine ligand to self-assemble the Au nanorods. The UV-vis result shows the formation of coordination complex between ruthenium ion and terpyridine ligand. The TEM images also confirm the formation of the self-assembly structure of end-to-end chain.
參考文獻
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延伸閱讀
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- Tsai, W. C. (2006). 自我組裝金屬鉺矽化物奈米結構之研究 [doctoral dissertation, National Tsing Hua University]. Airiti Library. https://doi.org/10.6843/NTHU.2006.00685
- 巫宗華（2015）。利用自組裝高分子共聚物模板與金屬輔助化學蝕刻製備奈微複合結構之研究〔碩士論文，國立清華大學〕。華藝線上圖書館。https://doi.org/10.6843/NTHU.2015.00181
- 張東浩（2010）。The Synthesis, Self-assembly, and its Application of Gold Nanoparticles〔博士論文，國立清華大學〕。華藝線上圖書館。https://doi.org/10.6843/NTHU.2010.00239
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