Improvement of Conversion Efficiency of Silicon Solar Cells by Submicron‐Textured Rear Reflector Obtained by Metal‐Assisted Chemical Etching

In this work we prepared double-layer antireflection coatings (DARC) by using the SiO2/SiNx:H heterostructure design. SiO2thin films were deposited by electron-beam evaporation on the conventional solar cell with SiNx:H single-layer antireflection coatings (SARC), while to avoid the coverage of SiO2on the front side busbars, a steel mask was utilized as the shelter. The thickness of the SiNx:H as bottom layer was fixed at 80 nm, and the varied thicknesses of the SiO2as top layer were 105 nm and 122 nm. The results show that the SiO2/SiNx:H DARC have a much lower reflectance and higher external quantum efficiency (EQE) in short wavelengths compared with the SiNx:H SARC. A higher energy conversion efficiency of 17.80% was obtained for solar cells with SiO2(105 nm)/SiNx:H (80 nm) DARC, an absolute conversion efficiency increase of 0.32% compared with the conventional single SiNx:H-coated cells.

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Micro- and Nanotextured Silicon for Antireflective Coatings of Solar Cells

Journal of Nano Research ◽

10.4028/www.scientific.net/jnanor.39.89 ◽

2016 ◽

Vol 39 ◽

pp. 89-95 ◽

Cited By ~ 13

Author(s):

Anatoly Druzhinin ◽

Valery Yerokhov ◽

Stepan Nichkalo ◽

Yevhen Berezhanskyi

Keyword(s):

Solar Cells ◽

Conversion Efficiency ◽

Silicon Substrate ◽

Chemical Etching ◽

Silicon Surface ◽

Crystalline Silicon ◽

Silicon Surfaces ◽

Antireflective Coatings ◽

High Conversion Efficiency ◽

Industrial Use

The paper deals with obtaining of textured silicon surfaces by chemical etching. As a result of experiments based on the modification and optimization of obtaining a textured silicon, several methods of chemical texturing of the crystalline silicon surface were developed. It was shown that modified isotropic and anisotropic etching methods are applicable to create a microrelief on the surface of silicon substrate. These methods in addition to their high conversion efficiency can be used for both mono- and multicrystalline silicon which would ensure their industrial use.

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18.88%-efficient multi-crystalline silicon solar cells by combining Cu-catalyzed chemical etching and post-treatment process

Solar Energy ◽

10.1016/j.solener.2018.04.049 ◽

2018 ◽

Vol 169 ◽

pp. 153-158 ◽

Cited By ~ 10

Author(s):

Ping Wang ◽

Shaoqing Xiao ◽

Rui Jia ◽

Hengchao Sun ◽

Xiaowan Dai ◽

...

Keyword(s):

Solar Cells ◽

Chemical Etching ◽

Treatment Process ◽

Crystalline Silicon ◽

Post Treatment ◽

Silicon Solar Cells ◽

Crystalline Silicon Solar Cells ◽

Post Treatment Process

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Optical optimization of double-side-textured monolithic perovskite–silicon tandem solar cells for improved light management

RSC Advances ◽

10.1039/d0ra04634e ◽

2020 ◽

Vol 10 (45) ◽

pp. 26631-26638 ◽

Cited By ~ 2

Author(s):

Fazal E. Subhan ◽

Aimal Daud Khan ◽

Adnan Daud Khan ◽

Najeeb Ullah ◽

Muhammad Imran ◽

...

Keyword(s):

Solar Cells ◽

Power Conversion Efficiency ◽

Conversion Efficiency ◽

High Power ◽

Power Conversion ◽

Silicon Solar Cells ◽

High Power Conversion Efficiency ◽

Tandem Solar Cells ◽

Tandem Configuration ◽

Light Management

Tandem configuration-containing perovskite and silicon solar cells are promising candidates for realizing a high power conversion efficiency of 30% at reasonable costs.

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