ZnO-ITO multilayered structure on Si substrate with prospective usage as antireflective covering for solar cells

Simple item page
dc.contributor.authorAbdyldayeva, Nuriya
dc.contributor.authorBeisenkhanov, Nurzhan
dc.date.accessioned2020-10-19T09:16:51Z
dc.date.available2020-10-19T09:16:51Z
dc.date.issued2020-08
dc.description.abstractZnO and SnO2 are some of the most important functional oxides with direct wide band gaps (3.37 and 3.95 eV). They are widely used in electronics as transpared electrodes, materials for optoelectronic devices and solar sells [1]. As is known, nearly 40% of incident light is reflected back in silicon wafers in the 550 nm wavelength region. This causes a significant loss in solar cell efficiency. Capturing of incident light is an essential requirement for high-performance solar cells. Photocurrent in solar cells can be increased by fabricating of antireflective coatings, which are beneficial in transmitting maximum light in such a way that minimal light is reflected from the air–substrate interface. Theoretical modelling of the antireflective thin films, such as ZnO [2], unlocks new options for production of wideband-tunable antireflective coatings that can be applicable in high-performance photovoltaic applications. This study uses a silicon wafer as the substrate, on which the multilayered structure is formed. This structure includes a 500-nm thick ITO (Indium tin oxide) film, ZnO films with variable thickness and ZnO nanorods of various radii on the top. This kind of coating can enhance solar cell productivity at omnidirectional angles because there is a gradual declination of the refractive index. The multilayered structure were designed and tested using Lumerical FDTD (Finite-difference time-domain) simulations [3], and this reduced it reflectance to <0.5% in the 400-700 nm wavelength range. Optimization results indicate that ZnO nanorods with r = 35 nm on a 70-nm ZnO uniform film on the top of ITO thick film has reflectance of 0.0004-0.5% in the visible region. Lumerical FDTD helps and permits the operator to define an appropriate design using different inorganic materials applicable to various supporting substrates and illuminants [3]. This software is a reliable simulation tool that can operate in varying environmental conditions.en_US
dc.identifier.citationAbdyldayeva, N. & Beisenkhanov, N. (2020). ZnO-ITO multilayered structure on Si substrate with prospective usage as antireflective covering for solar cells [Abstract]. The 8th International Conference on Nanomaterials and Advanced Energy Storage Systems; Nazarbayev University; National Laboratory Astana; Institute of Batteries.en_US
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/5013
dc.language.isoenen_US
dc.publisherThe 8th International Conference on Nanomaterials and Advanced Energy Storage Systems; Nazarbayev University; National Laboratory Astana; Institute of Batteriesen_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectmultilayered structureen_US
dc.subjectprospective usageen_US
dc.subjecttranspared electrodesen_US
dc.subjectResearch Subject Categories::TECHNOLOGYen_US
dc.subjectsolar sellsen_US
dc.titleZnO-ITO multilayered structure on Si substrate with prospective usage as antireflective covering for solar cellsen_US
dc.typeAbstracten_US
workflow.import.sourcescience

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Abstract book INESS 2020_Part28.pdf
Size:
337.04 KB
Format:
Adobe Portable Document Format
Description:
Abstract
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
6.28 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Abstracts