本文選題：靜電紡絲 + 金屬氧化物納米材料　； 參考：《青島大學(xué)》2015年碩士論文

【摘要】：近年來(lái),納米材料已經(jīng)成為目前凝聚態(tài)物理和材料科學(xué)應(yīng)用領(lǐng)域的研究熱點(diǎn),這必將推動(dòng)納米科技的迅速革新與發(fā)展。靜電紡絲技術(shù)具有便捷高效、工藝可控、安全環(huán)保等眾多優(yōu)點(diǎn),目前已經(jīng)成為有效制備各種微納米結(jié)構(gòu)(特別是一維納米結(jié)構(gòu))的主要途徑之一。一維納米材料由于具有獨(dú)特的物理、化學(xué)和生物特性,而被廣泛應(yīng)用于制作納米電子器件、光電器件、傳感器、光催化和太陽(yáng)能電池等領(lǐng)域。首先,通過(guò)靜電紡絲技術(shù)與磁控濺射技術(shù)相結(jié)合,成功制備了超細(xì)的氧化銦納米管結(jié)構(gòu),并且研究了其在不同波長(zhǎng)紫外光下的光響應(yīng)情況,結(jié)果表明當(dāng)給予紫外光照射時(shí)會(huì)顯著地提高氧化銦材料的電導(dǎo)率,靈敏度高達(dá)102,響應(yīng)速度極快(小于10s)并且擁有穩(wěn)定的循環(huán)特性和可逆特性。另外,還研究了氧化銦納米管器件與光源之間的距離與靈敏度之間的函數(shù)關(guān)系,發(fā)現(xiàn)隨著距離的增加其靈敏度發(fā)生降低。其次,通過(guò)傳統(tǒng)的靜電紡絲技術(shù)和退火技術(shù)成功制備了銳鈦礦型二氧化鈦納米棒結(jié)構(gòu),并在其力學(xué)性能和光電性能方面的進(jìn)行了研究。力學(xué)性能方面,基于二氧化鈦納米棒的柔性器件在彎曲狀態(tài)下表現(xiàn)出了比較高的靈敏度和穩(wěn)定性。在光電性能方面,當(dāng)置于光功率為10.24mW的氙燈光源下時(shí)其響應(yīng)時(shí)間約為10s,靈敏度高達(dá)103,并表現(xiàn)出極好的循環(huán)特性和可逆特性,因此所制備的二氧化鈦納米棒在制作柔性的光探測(cè)器件方面具有廣闊的應(yīng)用前景。最后,通過(guò)低壓近場(chǎng)靜電紡絲技術(shù)與直寫打印技術(shù)相結(jié)合,成功制備了有機(jī)P(VDF-TrFE)納米纖維與無(wú)機(jī)(氧化鋅、氧化銦)納米纖維的各種陣列結(jié)構(gòu),并初步研究了一些相關(guān)的光學(xué)性質(zhì)。實(shí)驗(yàn)中討論了氧化鋅在不同波長(zhǎng)與不同光強(qiáng)度下的光響應(yīng)情況,為進(jìn)一步研究納米線根數(shù)對(duì)光響應(yīng)的影響提供了基礎(chǔ)。研究發(fā)現(xiàn)單根氧化鋅納米線在波長(zhǎng)為340nm時(shí)的光響應(yīng)強(qiáng)度最高,并且在低強(qiáng)度的紫外光下仍然具有極大的靈敏度,為開發(fā)高性能的光探測(cè)器件提供了可能。另外,利用這種技術(shù)還能夠?qū)崿F(xiàn)有機(jī)與無(wú)機(jī)、無(wú)機(jī)與無(wú)機(jī)、有機(jī)與有機(jī)多種納米材料的復(fù)合形成交叉結(jié)構(gòu)異質(zhì)結(jié)或同質(zhì)結(jié),有助于推動(dòng)有機(jī)/無(wú)機(jī)納米纖維在納米器件和納米邏輯電路的發(fā)展。
[Abstract]:In recent years, nanomaterials have become the research focus in condensed matter physics and material science, which will promote the rapid innovation and development of nanotechnology.Electrostatic spinning technology has many advantages such as convenient and efficient, controllable process, safe and environmental protection, and has become one of the main ways to effectively prepare all kinds of micro-nanostructures (especially one-dimensional nanostructures).Due to their unique physical, chemical and biological properties, one-dimensional nanomaterials are widely used in the fabrication of nano-electronic devices, optoelectronic devices, sensors, photocatalysis and solar cells.Firstly, ultrafine indium oxide nanotubes were successfully prepared by electrospinning and magnetron sputtering, and the photoresponse of the nanotubes under different wavelengths of ultraviolet light was studied.The results show that the conductivity of indium oxide material can be significantly improved when irradiated by ultraviolet light, the sensitivity is as high as 102, the response speed is very fast (less than 10 s), and it has stable cycling and reversible characteristics.In addition, the functional relationship between the distance and sensitivity between the indium oxide nanotube device and the light source is studied. It is found that the sensitivity decreases with the increase of the distance.Secondly, anatase TIO _ 2 nanorods were successfully prepared by traditional electrospinning and annealing techniques, and their mechanical and photoelectric properties were studied.In terms of mechanical properties, the flexible devices based on titanium dioxide nanorods exhibit high sensitivity and stability under bending condition.In terms of optoelectronic performance, the response time of xenon lamp with optical power of 10.24mW is about 10s, the sensitivity of Xenon lamp is 103s, and it shows excellent cycling and reversible characteristics.Therefore, the prepared TIO _ 2 nanorods have a broad application prospect in the fabrication of flexible photodetectors.Finally, by combining low-voltage near-field electrospinning and direct-writing printing, various array structures of organic VDF-TrFE-based nanofibers and inorganic (zinc oxide, indium oxide) nanofibers were successfully prepared.Some related optical properties are also studied.The light response of zinc oxide at different wavelengths and different light intensities is discussed, which provides a basis for further study of the effect of the number of nanowires on the light response.It is found that the single ZnO nanowire has the highest light response intensity at wavelength of 340nm, and still has great sensitivity under low intensity ultraviolet light, which provides the possibility for the development of high performance photodetectors.In addition, it is possible to combine organic and inorganic, inorganic, organic and organic nanomaterials to form cross-structure heterostructures or homogeneous junctions by using this technique.It is helpful to promote the development of organic / inorganic nanofibers in nano devices and nano logic circuits.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TB383.1;TQ343.5

【共引文獻(xiàn)】

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本文編號(hào)：1753094