碳纳米管透明导电薄膜制备技术的研究进展

介绍了碳纳米管(CNTs)的基本性质,综述了CNTTCFs的制备工艺,评述了各种工艺的优势与局限,指出了影响CNT-TCFs性能的因素并提出了可能提高其性能的方法,评析了CNT-TCFs的应用前景以及其实现应用面临的挑战.     

碳纳米管透明导电薄膜制备技术的研究进展

介绍了碳纳米管(CNTs)的基本性质.综述了CNT-TCFs的制备工艺,评述了各种工艺的优势与局限,指出了影响CNT-TCFs性能的因素并提出了可能提高其性能的方法,评析了CNT-TCFs的应用前景以及其实现应用面临的挑战.     

透明导电氧化物薄膜研究进展

综述了透明导电氧化物(TCO)薄膜的应用和发展,重点阐述了TCO薄膜的透明导电机理以及制备工艺的最新研究进展,同时对其研究和应用前景进行了展望.     

p型透明导电氧化物薄膜的研究进展

p型透明导电膜是近来发现的一种新型的材料,在透明有源器件、传感器、透明电极和电路等方面具有广泛的潜在应用.近来在这方面的研究取得了一些突出的进展.本文主要综述了关于p型透明导电膜在材料、沉积工艺以及相关器件方面的研究进展.     

Stretchable Transparent Conductive Films from Long Carbon Nanotube Metals

Flexible transparent conductors are an enabling component for large‐area flexible displays, wearable electronics, and implantable medical sensors that can wrap around and move with the body. However, conventional conductive materials decay quickly under tensile strain, posing a significant hurdle for functional flexible devices. Here, we show that high electrical conductivity, mechanical stretchability, and optical transparency can be simultaneously attained by compositing long metallic double‐walled carbon nanotubes with a polydimethylsiloxane substrate. When stretched to 100% tensile strain, thin films incorporating these long nanotubes (≈3.2 µm on average) achieve a record high conductivity of 3316 S cm^?1 at 100% tensile strain and 85% optical transmittance, which is 194 times higher than that of short nanotube controls (≈0.8 µm on average). Moreover, the high conductivity can withstand more than 1000 repeated stretch‐release cycles (switching between 100% and 0% strain) with a retention approaching 96%, whereas the short nanotube controls exhibit only 10%. Mechanistic studies reveal that long tubes can bridge the microscale gaps generated during stretching, thereby maintaining high electrical conductivity. When mounted on human joints, this elastic transparent conductor can accommodate large motions to provide stable, high current output. These results point to transparent conductors capable of attaining high electrical conductivity and optical transmittance under mechanical strain to allow large shape changes that may take place in the operation and use of flexible electronics.     

石墨烯/纳米减反结构复合透明导电薄膜的研究

石墨烯具有较高的透过率及良好的电导率, 作为透明导电薄膜具有潜在的应用价值。首先在石英基底上引入SiO₂纳米球阵列结构作为光学减反射层, 使石英基底可见光区光学透过率从93.2%增加到99.0%。然后利用常压化学气相沉积方法, 通过基底表面铜颗粒远程催化碳源, 直接在减反层上可控制备具有石墨烯/纳米减反结构的新型复合透明导电薄膜。通过去除SiO₂纳米球阵列结构形成反相复制的石墨烯空心球阵列结构, 且生长时间10 min时, 对应半高宽约40 cm^-1, I_2D/I_G = 2.31, I_D/I_G = 0.77, 证明在SiO₂纳米球阵列减反结构上制备了低缺陷且连续的全包覆少层石墨烯薄膜。引入SiO₂纳米球阵列减反结构后, 其在可见光区光学550 nm波长处的透过率平均提高了5.5%, 方块电阻相对无减反射层基底平均降低了20.09%。本研究方法避免了复杂的转移工序, 减少了对石墨烯的损失与破坏, 同时实现了高透光性及高导电性的功能协同, 在光伏器件、平板显示等领域展示出更大的应用前景。     

定向碳纳米管薄膜的制备及其场发射性能的研究

利用高温裂解法，以酞菁铁为原料在不同基底(石英玻璃、硅片、氧化硅片等)上成功制备了碳纳米管定向薄膜。在扫描电镜(SEM)和透射电镜(TEM)下观察表明，得到的薄膜由定向性良好的多壁碳纳米管(MWNTs)组成。详细讨论了反应时间等工艺参数对薄膜生长的影响，并测量了不同基底上定向碳纳米管薄膜的场发射性质。     

ZnO:Al透明导电薄膜的研制

介绍用直流平面磁控溅射方法制备掺铝的氧化锌透明导电薄膜并研究了其特性，阐述了金属氧化物透明导电薄膜研究的发展情况及其应用前景，并讨论了氧化锌掺铝薄膜的优点。介绍了ZnO∶Al薄膜的制备情况：靶的制备及薄膜的制备过程。测量了薄膜的光电特性，包括透射比、折射率、消光系数、方块电阻、电阻率、载流子浓度和迁移率等参数，并分析了各种实验条件对薄膜性能的影响。     

Continuous Fabrication of Meter‐Scale Single‐Wall Carbon Nanotube Films and their Use in Flexible and Transparent Integrated Circuits

Single‐wall carbon nanotubes (SWCNTs), especially in the form of large‐area and high‐quality thin films, are a promising material for use in flexible and transparent electronics. Here, a continuous synthesis, deposition, and transfer technique is reported for the fabrication of meter‐scale SWCNT thin films, which have an excellent optoelectrical performance including a low sheet resistance of 65 Ω/? with a transmittance of 90% at a wavelength of 550 nm. Using these SWCNT thin films, high‐performance all‐CNT thin‐film transistors and integrated circuits are demonstrated, including 101‐stage ring oscillators. The results pave the way for the future development of large‐scale, flexible, and transparent electronics based on CNT thin films.     

透明导电InSnGaMo氧化物薄膜光电性能研究

利用脉冲激光沉积法在石英衬底上制备出了可见光透过率高、电阻率极低的Ga,Mo共掺杂ITO基InSnGaMo复合氧化物薄膜。研究了衬底温度对薄膜结构、表面形貌、光电性能的影响。实验结果表明:衬底温度对InSnGaMo复合氧化物薄膜形貌、光电性能均有很大影响。X射线衍射、扫描电镜和霍尔测试结果表明,随着衬底温度的升高,薄膜晶粒度增大,电阻率快速下降,可见光平均透过率明显提高。当衬底温度为450℃时,InSnGaMo复合氧化物薄膜的电阻率最低为4.15×10-4Ω.cm,载流子浓度和迁移率最大分别为3×1020cm-3,45 cm2V-1s-1,在可见及近红外区平均透过率达92%,特别地,波长为362 nm时,最高透射率可达99%。     

碳纳米管气敏传感器的制备与性能研究

本文采用传统的光刻工艺、丝网印刷技术和烧结工艺在ITO透明导电薄膜上制备出电容式的碳纳米管(CNT)膜气敏传感器,探讨扫描电压、工作频率和各种工艺参数对其性能的影响.光学显微镜测试表明,丝网印刷的CNT膜表面平整、分布均匀.扫描电镜表征显示,在大气中300℃烧结能促使有机粘合剂充分地分解和蒸发,在CNT膜中留下能有效提...     

CuAlO2热电性能的研究进展

P型透明导电氧化物CuAlO2具有超晶格层状结构,显示出非常好的热电性能,在热电转换领域可望有广阔的应用前景.本文简要介绍了CuAlO2的结构和能带特点,从制备过程、微观结构、退火条件和掺杂方式等方面阐述各因素对CuAlO2热电性能的影响,并讨论了提高其热电性能的可能途径.     

AZO透明导电薄膜光电性能的研究进展

掺铝氧化锌(AZO)薄膜其原料来源广、经济无毒,且具有优越的光电性能,可以与传统铟锡氧化物(ITO)薄膜相媲美,是优良的透明导电材料。目前,关于各制备工艺参数对AZO薄膜的影响规律及其影响机理仍是研究热点。综述了透明导电AZO薄膜光学与电学性能的研究进展,讨论了各制备工艺条件对薄膜性能的影响,分析了AZO/metal/AZO多层膜的研究现状,并对AZO薄膜的研究方向给予了展望。     

碳纳米管膜在电解液中电子输运性质的研究

研究了在电解液下碳纳米管膜中的电子输运特性.所用的碳纳米管是用热灯丝化学气相沉积法合成的.与通常观测到的在碳纳米管膜/电解液界面存在的电化学势不同,实验结果表明,在电解液作用下碳纳米管膜与接触电极间也存在着明显的电势,并与介质溶液性质、浓度和温度有关.电势的大小随浓度和温度的增加而增加.并对实验结果进行了分析.     

Transparent and Freestanding Single-Walled Carbon Nanotube Films Synthesized Directly and Continuously via a Blown Aerosol Technique

Single-walled carbon nanotube (SWCNT) films are promising materials as flexible transparent conductive films (TCFs). Here, inspired by the extrusion blown plastic film technique and the SWCNT synthesis approach by floating catalyst chemical vapor deposition (FCCVD), a novel blown aerosol chemical vapor deposition (BACVD) method is reported to directly and continuously produce freestanding SWCNT TCFs at several hundred meters per hour. The synthesis mechanism, involving blowing a stable aerosol bubble and transforming the bubble into an aerogel, is investigated, and a general phase diagram is established for this method. For the SWCNT TCFs via BACVD, both carbon conversion efficiency and SWCNT TCF yield can reach three orders of magnitude higher than those with the conventional FCCVD. The film displays a sheet resistance of 40 ohm sq⁻¹ at 90% transmittance after being doped, representing the record performance based on large-scale SWCNT films. Transparent, flexible, and stretchable electrodes based on BACVD films are demonstrated. Moreover, this high-throughput method of producing SWCNT TCFs can be compatible with the roll-to-roll process for mass production of flexible displays, touch screens, solar cells, and solid-state lighting, and is expected to have a broad and long-term impact on many fields from consumer electronics to energy conversion and generation.