Abstract:Flexible transparent electrodes (FTEs) are essential sections for wearable and other flexible optoelectronic devices. The application of traditional indium tin oxide (ITO) electrodes in flexible devices is limited by its...
“…The figure of merit (FoM) of the AgNW/GO/PVA/PDMS film reaches 200, which is better than that of the AgNW/PDMS film fabricated via direct coating or transfer without GO . Besides, compared with widely reported AgNW/GO hybrid films ,− and Ti 3 C 2 T X MXene/AgNW hybrid films − on a tough flexible substrate, the AgNW/GO/PVA/PDMS film on a soft substrate exhibits comparable optoelectrical performance.…”
Section: Results
and Discussionmentioning
confidence: 93%
“…These results demonstrate the necessity of GO as an adhesion tuning layer in the transfer process. The comparison of optical and electrical performance of AgNW flexible films ,− is shown in Figure g. The figure of merit (FoM) of the AgNW/GO/PVA/PDMS film reaches 200, which is better than that of the AgNW/PDMS film fabricated via direct coating or transfer without GO .…”
Silver nanowires (AgNWs) have been employed in various optoelectronic devices as transparent electrodes. However, it remains a great challenge to facilely pattern silver nanowires to realize desirable soft skin devices. Here, we develop an intact transfer method via a double-layered adhesion regulator of graphene oxide (GO) enabling complete transfer of a silver nanowire pattern from a tough substrate onto soft polydimethylsiloxane (PDMS) and flexible polyethylene (PE). We achieve positive and negative patterns simultaneously when selectively transferring silver nanowire patterns. The resulting patterned AgNW electrodes have uniform conductivity and long-term stability. The underlying mechanism of the clean transfer is thoroughly investigated via transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). GO plays a role in reducing the adhesion of AgNW to the donor tough substrate and enhancing adhesion of AgNW to the target soft substrate simultaneously. Finally, we demonstrate the utility of the patterned electrodes as transparent sensors detecting body motion. This work offers an effective solution to the challenging patterning problem of silver nanowires on a hydrophobic soft substrate, which is compatible with the soft component in emerging smart skin or wearable electronics.
“…The figure of merit (FoM) of the AgNW/GO/PVA/PDMS film reaches 200, which is better than that of the AgNW/PDMS film fabricated via direct coating or transfer without GO . Besides, compared with widely reported AgNW/GO hybrid films ,− and Ti 3 C 2 T X MXene/AgNW hybrid films − on a tough flexible substrate, the AgNW/GO/PVA/PDMS film on a soft substrate exhibits comparable optoelectrical performance.…”
Section: Results
and Discussionmentioning
confidence: 93%
“…These results demonstrate the necessity of GO as an adhesion tuning layer in the transfer process. The comparison of optical and electrical performance of AgNW flexible films ,− is shown in Figure g. The figure of merit (FoM) of the AgNW/GO/PVA/PDMS film reaches 200, which is better than that of the AgNW/PDMS film fabricated via direct coating or transfer without GO .…”
Silver nanowires (AgNWs) have been employed in various optoelectronic devices as transparent electrodes. However, it remains a great challenge to facilely pattern silver nanowires to realize desirable soft skin devices. Here, we develop an intact transfer method via a double-layered adhesion regulator of graphene oxide (GO) enabling complete transfer of a silver nanowire pattern from a tough substrate onto soft polydimethylsiloxane (PDMS) and flexible polyethylene (PE). We achieve positive and negative patterns simultaneously when selectively transferring silver nanowire patterns. The resulting patterned AgNW electrodes have uniform conductivity and long-term stability. The underlying mechanism of the clean transfer is thoroughly investigated via transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). GO plays a role in reducing the adhesion of AgNW to the donor tough substrate and enhancing adhesion of AgNW to the target soft substrate simultaneously. Finally, we demonstrate the utility of the patterned electrodes as transparent sensors detecting body motion. This work offers an effective solution to the challenging patterning problem of silver nanowires on a hydrophobic soft substrate, which is compatible with the soft component in emerging smart skin or wearable electronics.
“…Ti 3 C 2 T x MXene, a 2D material, can enhance the performance of AgNW networks due to its high electrical conductivity, carrier mobility, tunable WF, and superior mechanical properties [ 126 , 175 ]. In 2022, Chen et al combined 1D AgNWs and 2D Ti 3 C 2 T x MXene nanosheets to fabricate composite Ti 3 C 2 T x MXene FTEs for flexible solar cell devices [ 176 ]. Under electrostatic interaction, a composite 1D:2D structure (AgNW:MXene) FTE is produced.…”
Section: Mxenes In Perovskite Solar Cellsmentioning
confidence: 99%
“…12 b) and an area of 0.1 cm 2 show a high PCE of 20.22% (18.7% for the cell with pristine AgNWs only) with V oc of 1.06 V, J sc of 25.16 mA cm −2 , and FF of 75.5% (Fig. 12 c) [ 176 ]. Fig.…”
Section: Mxenes In Perovskite Solar Cellsmentioning
With an excellent power conversion efficiency of 25.7%, closer to the Shockley–Queisser limit, perovskite solar cells (PSCs) have become a strong candidate for a next-generation energy harvester. However, the lack of stability and reliability in PSCs remained challenging for commercialization. Strategies, such as interfacial and structural engineering, have a more critical influence on enhanced performance. MXenes, two-dimensional materials, have emerged as promising materials in solar cell applications due to their metallic electrical conductivity, high carrier mobility, excellent optical transparency, wide tunable work function, and superior mechanical properties. Owing to different choices of transition elements and surface-terminating functional groups, MXenes possess the feature of tuning the work function, which is an essential metric for band energy alignment between the absorber layer and the charge transport layers for charge carrier extraction and collection in PSCs. Furthermore, adopting MXenes to their respective components helps reduce the interfacial recombination resistance and provides smooth charge transfer paths, leading to enhanced conductivity and operational stability of PSCs. This review paper aims to provide an overview of the applications of MXenes as components, classified according to their roles as additives (into the perovskite absorber layer, charge transport layers, and electrodes) and themselves alone or as interfacial layers, and their significant importance in PSCs in terms of device performance and stability. Lastly, we discuss the present research status and future directions toward its use in PSCs.
“…Recently, Chen et al composited transparent electrodes by combining a AgNW network with Ti 3 C 2 T x MXene to obtain a low sheet resistance of 10.91 O sq À1 and a high transmittance of 82.84%. 27 Additionally, Jin et al exploited a hierarchical MXene grid/AgNW film, achieving a high transmittance of 81% and an outstanding EMI SE of 24.6 dB. 28 These results clearly show that the preparation of transparent conductive films with AgNW and MXene has made decent progress.…”
Electromagnetic interference (EMI) pollution poses risks to electronic devices and human health and has emerged as a major source of pollution. In addition to being low weight and exhibiting high...
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