Low‐temperature grown indium oxide nanowire‐based antireflection coatings for multi‐crystalline silicon solar cells

Abstract

Light harvesting by indium oxide nanowires (InO NWs) as an antireflection layer on multi‐crystalline silicon (mc‐Si) solar cells has been investigated. The low‐temperature growth of InO NWs was performed in electron cyclotron resonance (ECR) plasma with an O2–Ar system using indium nanocrystals as seed particles via the self‐catalyzed growth mechanism. The size‐dependence of antireflection properties of InO NWs was studied. A considerable enhancement in short‐circuit current (from 35.39 to 38.33 mA cm−2) without deterioration of other performance parameters is observed for mc‐Si solar cells coated with InO NWs.

High-Performance On-Chip Supercapacitors Based on Mesoporous Silicon Coated with Ultrathin Atomic Layer-Deposited In2O3 Films

“…In 2 O 3 as a transparent conductive oxide has recently drawn attention because of a wide band gap (2.9−3.75 eV), a high electrical conductivity, high optical transmittance, and excellent luminescence. 11 Such versatility enables In 2 O 3 to be used in various applications such as solar cells, 12 anti-reflection coating, 13 gas sensors, 14 thin-film transistors, 15 lithium ion batteries, 16 optoelectronics 17,18 devices, and supercapacitors. 19−26 As for the supercapacitor application, a large number of In 2 O 3 nanostructures were investigated, including In 2 O 3based nanorods 19,23 and nanospheres, 23 In 2 O 3 -nanowires/ carbon nanotubes 20 or macroporous carbon 21 or mesoporous carbon 22 or reduced graphene oxide, 24 hierarchical NiO− In 2 O 3 microflowers (3-D)/nanorods (1-D), 25 and other In 2 O 3 nanowires (i.e., nanotowers, nanocones, or nanobouquets).…”

“…In 2 O 3 as a transparent conductive oxide has recently drawn attention because of a wide band gap (2.9–3.75 eV), a high electrical conductivity, high optical transmittance, and excellent luminescence . Such versatility enables In 2 O 3 to be used in various applications such as solar cells, anti-reflection coating, gas sensors, thin-film transistors, lithium ion batteries, optoelectronics , devices, and supercapacitors. − As for the supercapacitor application, a large number of In 2 O 3 nanostructures were investigated, including In 2 O 3 -based nanorods , and nanospheres, In 2 O 3 -nanowires/carbon nanotubes or macroporous carbon or mesoporous carbon or reduced graphene oxide, hierarchical NiO–In 2 O 3 microflowers (3-D)/nanorods (1-D), and other In 2 O 3 nanowires (i.e., nanotowers, nanocones, or nanobouquets) . However, these In 2 O 3 nanostructures with different morphologies are usually prepared by potentiodynamic deposition, chemical vapor deposition (CVD), pulsed laser deposition, thermal decomposition, and hydrothermal method. ,− Meanwhile, these In 2 O 3 nanostructures were reported to be fabricated on carbon materials, planar silicon substrates, or metal collectors.…”

Textured anti-reflection and down-conversion composite functional films for high-efficiency solar cells

“…Furthermore, for some flat cells that are not ideal for surface texturization, such as perovskite, silicon/perovskite tandem and other thin film solar cells, it is imperative to develop advanced textured surfaces to reduce reflectivity. Numerous random and periodic nanostructures, such as nanowires, 6–8 nanopillars, 9–11 nanocones, 12–14 nanoneedles 15–17 and nanospheres 18–20 have been extensively studied as back reflectors or front anti-reflection layers. The gradual change in the effective refractive index from the top to the bottom of these nanostructured textures, similar to multi-layer anti-reflection films, enhances light trapping throughout the visible spectrum.…”