Three kinds of silver-sheathed Bi(2223) oxide superconductor tapes (single-core tape, Ag-powder-added tape and multifilamentary type) were successfully prepared, namely, through the powder-in-tube method. The critical...Three kinds of silver-sheathed Bi(2223) oxide superconductor tapes (single-core tape, Ag-powder-added tape and multifilamentary type) were successfully prepared, namely, through the powder-in-tube method. The critical current density (Jc), the Jc-B characteristics, microstructures and the relation between Jc and strain of three kinds of tapes were evaluated and compared. The maximum Jc of three kinds of tapes at 77.7 K in zero magnetic field are 28700 A/cm2 for single-core tape, 20800 A/cm2 for Ag-powder-added tape, 11700 A/cm2 for multifilamentary tape. Single-core tapes exhibit high Jc values and good Jc-B characteristics.展开更多
Transparent electrodes are essential components for optoelectronic devices such as displays and thin-film solar cells. Traditionally, the deposition of transparent conducting layers and the sealing of the device are s...Transparent electrodes are essential components for optoelectronic devices such as displays and thin-film solar cells. Traditionally, the deposition of transparent conducting layers and the sealing of the device are separate steps. Here we report on a highly transparent, conductive, and flexible ＂tape＂, which can be obtained by transferring silver nanowire networks to conventional transparent tape. We utilized the viscidity of the tape to reduce the junction resistance between silver nanowires and further protect the nanowires from corrosion, oxidation and mechanical damage. By this simple method, we obtained a flexible tape with high transparency （-90% at 550 nm wavelength） and low sheet resistance （approaching 22 Ω.sq^-1）. The transparent tape can be attached and stuck firmly on complex surfaces, making the surface highly conductive. We demonstrated the use of the tape as both a conducting layer and a sealing layer for flexible electronics applications including in-situ temperature monitoring and electrochromic devices.展开更多
文摘Three kinds of silver-sheathed Bi(2223) oxide superconductor tapes (single-core tape, Ag-powder-added tape and multifilamentary type) were successfully prepared, namely, through the powder-in-tube method. The critical current density (Jc), the Jc-B characteristics, microstructures and the relation between Jc and strain of three kinds of tapes were evaluated and compared. The maximum Jc of three kinds of tapes at 77.7 K in zero magnetic field are 28700 A/cm2 for single-core tape, 20800 A/cm2 for Ag-powder-added tape, 11700 A/cm2 for multifilamentary tape. Single-core tapes exhibit high Jc values and good Jc-B characteristics.
基金This work was supported by the National Basic Research Program of China （Nos. 2015CB932500 and 2013CB632702） and the National Natural Science Foundation of China （No. 51302141）. H. W. acknowledges the support from the 1000 Youth Talents Plan of China.
文摘Transparent electrodes are essential components for optoelectronic devices such as displays and thin-film solar cells. Traditionally, the deposition of transparent conducting layers and the sealing of the device are separate steps. Here we report on a highly transparent, conductive, and flexible ＂tape＂, which can be obtained by transferring silver nanowire networks to conventional transparent tape. We utilized the viscidity of the tape to reduce the junction resistance between silver nanowires and further protect the nanowires from corrosion, oxidation and mechanical damage. By this simple method, we obtained a flexible tape with high transparency （-90% at 550 nm wavelength） and low sheet resistance （approaching 22 Ω.sq^-1）. The transparent tape can be attached and stuck firmly on complex surfaces, making the surface highly conductive. We demonstrated the use of the tape as both a conducting layer and a sealing layer for flexible electronics applications including in-situ temperature monitoring and electrochromic devices.
