Highly bendable, transparent, and conductive AgNWs-PET films fabricated via transfer-printing and second pressing technique

Abstract

Highly bendable, transparent, and conductive films composed of silver nanowires (AgNWs) network and polyethylene terephthalate (PET) substrate were prepared by a transfer-printing and second pressing technique using different dimensional AgNWs. The performance of the films as a function of optical and bending performances with low sheet resistance is enhanced, by controlling the diameter and length of AgNWs, area density, and the mechanical press condition. With the optimized mean diameter (D) *40 nm and length (L) *15 lm, the asprepared AgNWs-PET film possesses a sheet resistance of 11.5 X/sq, transmittance (T 550 ) of 93.4 %, and haze of 1.23 %. The AgNWs-PET film with the second press treatment at 10 MPa for 20 s shows a very excellent bending performance, with less than 8 % change of the sheet resistance after 46,000 bending cycles without any additional conductive polymer. This highly bendable, transparent, and conductive film is suitable for emerging technologies such as flexible display, electrical skins, and bendable solar cells.

Silver Nanowires Modified with PEDOT: PSS and Graphene for Organic Light-Emitting Diodes Anode

“…Therefore, it is necessary to explore new materials that can be applied in the transparent conductive anode in OLED. To replace ITO in transparent conducting electrodes, promising candidates include silver nanowires (AgNWs)9101112 and graphene13141516 which can provide both excellence electrical and optical performances, but they also have their own disadvantages. For example, the surface roughness of AgNWs network is relatively high due to the AgNWs junctions17, and it is well known that the resistance of single-layer graphene prepared by chemical vapor deposition (CVD) without doping is larger than 450 Ω/sq in general because of the existence of grain boundaries in polycrystalline graphene1819.…”

Synthesis and the growth mechanism of ultrafine silver nanowires by using 5-chloro-2-thienylmagnesium bromide as the additive

“…The potential applications of Ag NWs in exible electronic have attracted much attention due to their excellent electrical, optical, and mechanical properties. [1][2][3][4] In particular, the optical property is greatly affected by the diameter of the Ag NWs. In general, ner Ag NWs lead to lower haze and higher transmittance.…”

Flexible Transparent Conductive Film Based on Random Networks of Silver Nanowires

“…Until now, many approaches used to prepare silver nanowires networks have been presented including vacuum filtration, the drop-cast method, Meyer rod coating, and the transfer-printing technique [ 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. However, it is very difficult to achieve a high quality film with low sheet resistance, high optical transmittance, and good adhesion between the nanowires and substrate surface at the same time.…”