本文選題：納米材料 + 拓?fù)浣^緣體�。� 參考：《湘潭大學(xué)》2015年碩士論文

【摘要】：納米材料研究的范圍非常廣,內(nèi)容涵蓋非常豐富,其研究領(lǐng)域從原子團(tuán)到納米顆粒、納米線再延續(xù)到發(fā)展超薄二維納米結(jié)構(gòu)材料。既石墨烯之后,拓?fù)浣^緣體(TI)作為新型的量子功能性材料,引起了廣大國(guó)內(nèi)外學(xué)者們的關(guān)注和研究,并且一批重要的研究成果相繼被發(fā)表。我們的工作主要是針對(duì)拓?fù)浣^緣體(TI)Bi2Se3材料,在Bi2Se3納米片以及Ag/Bi2Se3復(fù)合結(jié)構(gòu)的制備、形貌結(jié)構(gòu)的表征和光響應(yīng)特性能測(cè)試方面展開了比較系統(tǒng)的工作。全文共分為五章:第一章介紹了石墨烯、過渡金屬二硫族化合物以及拓?fù)浣^緣體材料等二維原子晶體材料的常用制備方法、性質(zhì)特征以及應(yīng)用領(lǐng)域,分析了目前仍然存在的問題以及未來(lái)的發(fā)展動(dòng)態(tài)。第二章采用Li離子插入的溶液水熱反應(yīng)成功制備獲得了Bi2Se3納米片結(jié)構(gòu)以及對(duì)其進(jìn)行各項(xiàng)表征,測(cè)試結(jié)果表明我們成功剝離獲得了厚度可達(dá)2-3 nm的單晶Bi2Se3納米片結(jié)構(gòu)。第三章介紹了塊體Bi2Se3、Bi2Se3納米片結(jié)構(gòu)以及經(jīng)退火處理后的Bi2Se3納米片結(jié)構(gòu)的光響應(yīng)性能研究,測(cè)試分析了它們的光響應(yīng)性能的表現(xiàn)。第四章研究了以硒化鉍納米片為載體,通過實(shí)驗(yàn)制備獲得Ag/Bi2Se3納米復(fù)合結(jié)構(gòu),另外,對(duì)Bi2Se3納米片結(jié)構(gòu)以及Ag/Bi2Se3復(fù)合結(jié)構(gòu)進(jìn)行了系統(tǒng)性的性能對(duì)比測(cè)試,發(fā)現(xiàn)Ag/Bi2Se3復(fù)合結(jié)構(gòu)顯示出非常顯著的光響應(yīng)特性。第五章總結(jié)了本人在碩士期間的主要研究方向和已取得的重要成果,并對(duì)目前還有待完善的工作以及可開辟的新領(lǐng)域進(jìn)行了展望。
[Abstract]:The research scope of nanomaterials is very wide and the content is very rich. The research fields of nanomaterials are from atomic clusters to nanoparticles and nanowires to the development of ultrathin two-dimensional nanostructured materials.After graphene topology insulator tii as a new quantum functional material has attracted the attention and research of scholars at home and abroad and a number of important research results have been published one after another.Our work is mainly focused on the preparation of Bi2Se3 nanocrystalline and Ag/Bi2Se3 composite structures, the characterization of morphology and the special properties of photo-response for topologically insulator TiTiBi2Se3.The thesis is divided into five chapters: in Chapter 1, the preparation methods, properties and applications of graphene, transition metal disulfide compounds and topological insulator materials are introduced.The existing problems and the future development are analyzed.In chapter 2, the structure and characterization of Bi2Se3 nanocrystals were successfully prepared by hydrothermal reaction of Li ion insertion solution. The results show that we successfully peel off the structure of Bi2Se3 nanocrystals with thickness up to 2-3 nm.In chapter 3, the photoresponse properties of bulk Bi2Se3OBi2Se3 nanostructures and annealed Bi2Se3 nanostructures are introduced, and their optical response properties are tested and analyzed.In chapter 4, the Ag/Bi2Se3 nanocomposite structure was prepared by using bismuth selenide nanoparticles as the carrier. In addition, the Bi2Se3 nanostructures and the Ag/Bi2Se3 nanostructures were systematically compared with each other.It is found that the composite structure of Ag/Bi2Se3 exhibits very remarkable light response characteristics.The fifth chapter summarizes the main research direction and the important achievements made during my master's period, and looks forward to the work to be improved and the new field to be opened up at present.
【學(xué)位授予單位】：湘潭大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TB383.1

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