Investigation of optical absorptance of one-dimensionally periodic silicon gratings as solar absorbers for solar cells

Kód výsledku v IS VaVaI

RIV/61989100:27640/14:86087443 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1364/OE.22.000A68

DOI - Digital Object Identifier

10.1364/OE.22.000A68

Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of optical absorptance of one-dimensionally periodic silicon gratings as solar absorbers for solar cells

Popis výsledku v původním jazyce

A rigorous design using periodic silicon (Si) gratings as absorbers for solar cells in visible and near-infrared regions is numerically presented. The structure consists of a subwavelength Si grating layer on top of an Si substrate. Ranges of grating dimensions are preliminary considered satisfying simple and feasible fabrication techniques with an aspect ratio defined as the ratio of the grating thickness (d) and the grating lamella width (w), with 0 < d/w < 1.0. The subwavelength grating structure (SGS) is assumed to comprise different lamella widths and slits within each period in order to finely tune the grating profile such that the absorptance is significantly enhanced in the whole wavelength region. The results showed that the compound SGS yields an average absorptance of 0.92 which is 1.5 larger than that of the Si plain and conventional grating structures. It is shown that the absorptance spectrum of the proposed SGS is insensitive to the angle of incidence of the incoming lig

Název v anglickém jazyce

Investigation of optical absorptance of one-dimensionally periodic silicon gratings as solar absorbers for solar cells

Popis výsledku anglicky

A rigorous design using periodic silicon (Si) gratings as absorbers for solar cells in visible and near-infrared regions is numerically presented. The structure consists of a subwavelength Si grating layer on top of an Si substrate. Ranges of grating dimensions are preliminary considered satisfying simple and feasible fabrication techniques with an aspect ratio defined as the ratio of the grating thickness (d) and the grating lamella width (w), with 0 < d/w < 1.0. The subwavelength grating structure (SGS) is assumed to comprise different lamella widths and slits within each period in order to finely tune the grating profile such that the absorptance is significantly enhanced in the whole wavelength region. The results showed that the compound SGS yields an average absorptance of 0.92 which is 1.5 larger than that of the Si plain and conventional grating structures. It is shown that the absorptance spectrum of the proposed SGS is insensitive to the angle of incidence of the incoming lig

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

ED0040/01/01: Regionální materiálově technologické výzkumné centrum

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

OPTICS EXPRESS

ISSN

1094-4087

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

S1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

"A68"-"A79"

Kód UT WoS článku

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EID výsledku v databázi Scopus

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