The enhancement of near infrared light trapping in solar cells with backside crystalline silicon gratings: Realization and characterization investigation

被引：6

作者：

Chahi, M. ^{[1
,3
]}

Alcantara, S. P. ^{[2
]}

Bouhekka, A. ^{[1
,4
]}

Sib, J. D. ^{[1
,3
]}

Sanchez, G. ^{[2
]}

Chahed, L. ^{[1
]}

机构：

[1] Univ Oran 1 Ahmed Ben Bella, LPCMME, BP 1524 ELM Naouer, Oran 31000, Algeria

[2] Univ Politecn Valencia, Valencia Nanophoton Technol Ctr NTC, E-46022 Valencia, Spain

[3] Achaba Hanifi USTO, Ecole Super Genie Electr & Energet, BP 64 CH2, Oran, Algeria

[4] Univ Hassiba Ben Bouali Chlef, Fac Exact Sci & Informat, Dept Phys, Natl Rd 19, Ouled Fares 02000, Chlef, Algeria

来源：

OPTIK | 2020年 / 200卷

关键词：

Light trapping; Silicon periodic grating; Diffraction angles; Reflectance; Near infrared light; Absorption enhancement; ABSORPTION ENHANCEMENT; DIFFRACTION GRATINGS; EFFICIENCY; DESIGN; LAYER;

D O I：

10.1016/j.ijleo.2019.163143

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The aim purpose of this work is to study the fundamental potential effect of circular crystalline silicon pillars gratings on the enhanced near infrared light trapping. Gratings with periods of 1.2, 1.5 and 1.8 mu m and depth of 400 nm were located on the rear side of the wafers. The findings of this investigation clearly indicated that the gratings have an important effect on the enhancement of light. The measurements of absorption and reflectance spectra were carried out using an integrating sphere. It was clearly illustrated that the optimization was performed for grating with a period length of 1.2 mu m. This type of grating enhanced around 75% the near infrared light trapping and thus the absorption is increased in the thin film. This phenomenon has a great role in solar cells applications to increase the efficiency.

引用

页数：9

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