Thermally Stable Silver Nanowires-Embedding Metal Oxide for Schottky Junction Solar Cells

Abstract

Thermally stable silver nanowires (AgNWs)-embedding metal oxide was applied for Schottky junction solar cells without an intentional doping process in Si. A large scale (100 mm(2)) Schottky solar cell showed a power conversion efficiency of 6.1% under standard illumination, and 8.3% under diffused illumination conditions which is the highest efficiency for AgNWs-involved Schottky junction Si solar cells. Indium-tin-oxide (ITO)-capped AgNWs showed excellent thermal stability with no deformation at 500 °C. The top ITO layer grew in a cylindrical shape along the AgNWs, forming a teardrop shape. The design of ITO/AgNWs/ITO layers is optically beneficial because the AgNWs generate plasmonic photons, due to the AgNWs. Electrical investigations were performed by Mott-Schottky and impedance spectroscopy to reveal the formation of a single space charge region at the interface between Si and AgNWs-embedding ITO layer. We propose a route to design the thermally stable AgNWs for photoelectric device applications with investigation of the optical and electrical aspects.

Cohesively enhanced electrical conductivity and thermal stability of silver nanowire networks by nickel ion bridge joining

“…Ag NW networks also suffer from breakdown when exposed to high applied currents and long-term annealing conditions 14 . Theories have been proposed to address these issues, and various methods have been developed, including heat treatment (featuring either a high processing temperature or long treatment time) 15 , mechanical pressing 16 , 17 , electrochemical ion exchange 18 , vacuum filtration 19 , metal-oxide nanoparticle fusing 20 , 21 and plasmonic welding 22 . In general, these methods require that the Ag NW networks have good uniformity before treatment, but the uniformity is difficult to control.…”

Silver-Nanowire-Embedded Transparent Metal-Oxide Heterojunction Schottky Photodetector

“…As selective wide bandgap metal-oxides heterojunctions possess built-in potential to separate the photogenerated charge carriers. The well-connected porous metal nanowires (i.e., silver or copper nanowires) preserve the optimized transparency and effectively collect these charge carriers, which results in a very high photoresponse. ,− …”

Translucent Photodetector with Blended Nanowires–Metal Oxide Transparent Selective Electrode Utilizing Photovoltaic and Pyro‐Phototronic Coupling Effect

“…PLAgNW50‐IP‐25m), in solution (S32IKNS6A7) via micropipette (Witeg DEM 15‐Germany) and subsequently spinning at a rotation of 3000 rpm for 30 s on a spin coater (spin coater EF‐4op). The AgNWs were bought from PlasmaChem GmbH (Berlin, Germany) …”