Light trapping in a-Si/c-Si heterojunction solar cells by embedded ITO nanoparticles at rear surface

We use Silvaco software (atlas tcad) simulation to investigate the effect of dielectric layer deposed on rear surface of solar cells passivated emitter and rear totally diffused (PERT). For an improved performance for this solar cell, several physical factors must be considered, such as the light trapping behavior, and the resulting passivation performance and rear surface recombination currents were investigated. Particular consideration will be given to the back surface reflector (BSR) impact on reflection surface, interface passivation, and on the I–V characteristics. Numerical simulations show that using a layer of two dielectrics (SiNx/SiO2) with optical indices and thickness optimized in combination with contacts located (optimized metallization fraction f) at the rear surface allow for energy conversion efficiencies of 21.26% compared to a single layer of dielectric SiN 21.01%.

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Design of deterministic light-trapping structures for thin silicon heterojunction solar cells

Optics Express ◽

10.1364/oe.417848 ◽

2021 ◽

Vol 29 (5) ◽

pp. 7410

Author(s):

Samia Ahmed Nadi ◽

Karsten Bittkau ◽

Florian Lentz ◽

Kaining Ding ◽

Uwe Rau

Keyword(s):

Solar Cells ◽

Light Trapping ◽

Heterojunction Solar Cells ◽

Thin Silicon ◽

Silicon Heterojunction Solar Cells

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Improvement of Rear Surface Passivation Quality in p-Type Silicon Heterojunction Solar Cells Using Boron-Doped Microcrystalline Silicon Oxide

Japanese Journal of Applied Physics ◽

10.7567/jjap.50.082301 ◽

2011 ◽

Vol 50 (8R) ◽

pp. 082301 ◽

Cited By ~ 10

Author(s):

Suttirat Rattanapan ◽

Tatsuro Watahiki ◽

Shinsuke Miyajima ◽

Makoto Konagai

Keyword(s):

Solar Cells ◽

Surface Passivation ◽

Silicon Oxide ◽

Rear Surface ◽

Microcrystalline Silicon ◽

Heterojunction Solar Cells ◽

Type Silicon ◽

Boron Doped ◽

P Type ◽

Silicon Heterojunction Solar Cells

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Impact of Periodicity of Inverted Pyramids on Anti-reflection and Light-trapping Properties in Silicon Heterojunction Solar Cells

Light, Energy and the Environment ◽

10.1364/pv.2017.pm3a.6 ◽

2017 ◽

Cited By ~ 1

Author(s):

Samia Ahmed Nadi ◽

Florian Lentz ◽

Yael Augarten ◽

Karsten Bittkau ◽

Andreas Lambertz ◽

...

Keyword(s):

Solar Cells ◽

Light Trapping ◽

Heterojunction Solar Cells ◽

Silicon Heterojunction Solar Cells

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3C-SiC Polycrystalline Films on Si for Photovoltaic Applications

Materials Science Forum ◽

10.4028/www.scientific.net/msf.821-823.189 ◽

2015 ◽

Vol 821-823 ◽

pp. 189-192 ◽

Cited By ~ 3

Author(s):

Stefania Privitera ◽

Vincenza Brancato ◽

Donatella Spadaro ◽

Ruggero Anzalone ◽

Alessandra Alberti ◽

...

Keyword(s):

Solar Cells ◽

Deposition Temperature ◽

Light Trapping ◽

High Surface ◽

Electrical And Optical Properties ◽

Step Process ◽

Heterojunction Solar Cells ◽

Photovoltaic Applications ◽

Amorphous Si ◽

Sic Films

The electrical and optical properties of n-doped polycrystalline 3C-SiC films grown on 6 inches Si wafers have been investigated as a function of precursor gases, deposition temperature and C/Si ratio. The Si/SiC interface has been optimized, eliminating the voids formation through a double temperature step process and by introducing a thin not intentionally doped layer. Films with high surface roughness, favourable for light trapping in photovoltaic applications, and with resistivity around 20 mOhm cm have been obtained for C/Si ratio close to 1. Simple solar cells have been also manufactured and proved the functionality of poly 3C-SiC/Si heterojunction solar cell. Increased quantum efficiency in the range 300-500 nm has been observed, compared to amorphous Si, making poly 3C-SiC heterojunction solar cells interesting for high temperature applications or water splitting.

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