Nano Select
·
2022
·Vol. 3
·期 9
·1306-1313
·
IF 0
Huangqing Ye,Guisheng Zhuang,Yingying Pan,Haibo Wang,Yanlin Li,Yishan Lin,Yu Wang,Xiping Zeng
As an organic cation, quaternary ammonium salt was introduced as a control agent to synthesize silver nanowires. The important influence of quaternary ammonium salt on the preparation of silver nanowires was seriously investigated by varying the length of carbon chain and its amount. Results showed that using quaternary ammonium salt as the control agent can successfully control the growth of silver nanowires, of which the diameters ranging from 35.06 to 46.60 nm. The diameters of the as-prepared silver nanowires tended to be smaller with a longer carbon chain. This work provides a new aspect for controllable preparation of silver nanowires. Furthermore, the as-prepared silver nanowires were used to prepare transparent electrodes. They exhibited good optical performance with 95.6% transmittance at a low sheet resistance of 18 Ω/square, demonstrating their great potential in the application for touch screens.
研究领域:
材料科学
·
纳米技术
·
电子器件
✓ 已验证
DOI
NANOTECHNOLOGY
·
2016
·Vol. 27
·期 38
·385603
·
IF 3.573
Piao Liu,Jin Ma,Sha Deng,Kai Zeng,Dunying Deng,Wei Xie,Anxian Lu
Printed-electronics inks belong to a class of novel functional conductive inks that can be used to form high-precision conducting lines or circuits on various flexible substrates. Previous studies have reported conductive inks produced by the reduction and membrane separation method for use in flexible devices. However, it remains a challenge to synthesize conductive inks with high electrical properties at low sintering temperatures, which restricts their range of applications. Herein, we prepare inkjet-printed patterns of conductive inks consisting of Ag nanohexagonal platelets (AgNHPs) as the main component and containing graphene (GE) in different contents. It is found that GE improves the electrical conductivity of the patterns when sintering is done at relatively low temperatures. For instance, when the GE content is 0.15 mg ml−1, the resistivity is the lowest. When sintering is done at 150 °C, the resistivity (2.7 × 10–6 Ω · cm) of the GE-AgNHPs conductive ink (GE: 0.15 mg ml−1) is 14% of that of the AgNHPs conductive ink; on the other hand, after sintering at 50 °C, this ratio is 2%. It is also found that, with the increase in GE content, the resistivity of the GE-AgNHPs conductive ink increases. This study on GE-AgNHPs conductive inks sintered at low temperatures should further the development of flexible touch screens.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED MATERIALS
·
2023
·Vol. 35
·期 22
·2300380
·
IF 29.4
Jun Li,Chaofeng Wang,Shuilin Wu,Zhenduo Cui,Yufeng Zheng,Zhaoyang Li,Hui Jiang,Shengli Zhu,Xiangmei Liu
Currently, the global COVID-19 pandemic has significantly increased the public attention toward the spread of pathogenic viruses and bacteria on various high-frequency touch surfaces. Developing a self-disinfecting coating on a touchscreen is an urgent and meaningful task. Superlattice materials are among the most promising photocatalysts owing to their efficient charge transfer in abundant heterointerfaces. However, excess electronic defects at the heterointerfaces result in the loss of substantial amounts of photogenerated charge carrier. In this study, a ZnO Fe 2 O 3 superlattice nanofilm is designed via atomic layer deposition for photocatalytic bactericidal and virucidal touchscreen. Additionally, electronic defects in the superlattice heterointerface are engineered. Photogenerated electrons and holes will be rapidly separated and transferred into ZnO and Fe 2 O 3 across the heterointerfaces owing to the formation of Zn O, Fe O, and Zn Fe covalent bonds at the heterointerfaces, where ZnO and Fe 2 O 3 function as electronic donors and receptors, respectively. The high generation capacity of reactive oxygen species results in a high antibacterial and antiviral efficacy (>90%) even against drug-resistant bacteria and H1N1 viruses under simulated solar or low-power LED light irradiation. Meanwhile, this superlattice nanofilm on a touchscreen shows excellent light transmission (>90%), abrasion resistance (10 6 times the round-trip friction), and biocompatibility.
研究领域:
材料科学
·
纳米技术
·
光催化
·
细菌学
·
病毒学
·
表面科学
·
光电子学
✓ 已验证
DOI
PubMed
高影响因子
Virtual and Physical Prototyping
·
2023
·
IF 10.6
Junyi Zhou,Houchao Zhang,Rui Wang,Zhenghao Li,Hongke Li,Peikai Duan,Shuai Shang,Youchao Zhang,Zelin Wang,Wensong Ge,Hongbo Lan,Xiaoyang Zhu
Metal mesh transparent electrodes present a promising alternative to Indium-Tin Oxide (ITO) due to their adjustable period and favourable trade-off between transmittance and conductivity. In this work, a template-free, non-high temperature hybrid additive manufacturing approach of the polyacrylonitrile (PAN)/Cu core–shell structure high-resolution metal mesh flexible transparent electrode (FTE) is proposed. The electric field-driven (EFD) 3D printing method was employed to print ultra-fine lines with widths as low as 1 μm. The composite-plating process combining electroless plating and electroplating has solved the structural defects of single deposition process. The prepared FTE has an excellent conductivity down to 1 Ω/sq and 89% light transmission (at 550 nm). Its exceptional mechanical properties and environmental stability make it suitable for diverse working environments. Even after undergoing 2000 bends at a radius of 3 mm, the resistance change rate remains as low as 1.4%. The resistance exhibits an approximately 8% change rate in the acid–base environment experiments conducted over 72 h. The flexible touch screen prepared with this FTE exhibits excellent writing performance in both flat and curved working scenarios. Furthermore, the significant potential of this FTE in the field of optoelectronics is effectively demonstrated through its exceptional luminescent performance in electroluminescent devices.
研究领域:
材料科学
·
纳米技术
·
电气工程
·
制造技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）