Light Trapping Design in Silicon-Based Solar Cells

Chen, Fengxiang; Wang, Lisheng

doi:10.5772/20962

Cited by 11 publications

(3 citation statements)

References 24 publications

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“…The light trapping capacity of the cell needs to be increased to significantly impact the current and to increase the overall efficiency. The thickness of the absorber layer should be large enough to absorb as much as 99% of the incident light [1]. The scarcity of indium could have an economic impact on the CIGS solar module production.…”

Section: Introductionmentioning

confidence: 99%

Optical enhancement of ultra-thin CIGS solar cells using multi-layered antireflection coatings

Rajan

Ibdah

Aryal

et al. 2014

2014 IEEE 40th Photovoltaic Specialist Conference (PVSC)

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The performance of ultra-thin CIGS solar cells can be greatly improved by the addition of multilayer anti-reflective coatings. They serve as excellent light traps in the red and near infra-red regions, thereby enhancing the total efficiency of the solar cell. In this study, multiple layer AR coatings were optimized on ultra-thin CIGS solar cells and a reduction in reflectance was observed. Different materials were explored in order to decrease the overall reflectance of the solar cell without increasing the complexity of the cell.

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Section: Introductionmentioning

confidence: 99%

Optical enhancement of ultra-thin CIGS solar cells using multi-layered antireflection coatings

Rajan

Ibdah

Aryal

et al. 2014

2014 IEEE 40th Photovoltaic Specialist Conference (PVSC)

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“…Increasing the power conversion efficiency and thereby reducing the levelized cost of electricity generated by PVSC modules is essential to make PVSC technology globally competitive with conventional sources of energy and allow us to better tackle the climate emergency [1]. One way to enhance the efficiency is to reduce the reflection losses using an antireflection coating [2]. In thin-film CIGS solar cells, a single-layer coating of MgF 2 is used to reduce the reflection loss.…”

Section: Introductionmentioning

confidence: 99%

“…In thin-film CIGS solar cells, a single-layer coating of MgF 2 is used to reduce the reflection loss. However, a single-layer antireflection coating can be effective only for a narrow spectral regime [2]. So, multi-layer antireflection coatings or graded-index antireflection structures are required to reduce the reflection loss over a broad spectral regime.…”

Section: Introductionmentioning

confidence: 99%

Double-layer antireflection coatings for CIGS thin-film solar cells

Ahmad

Civiletti

Monk

et al. 2023

International Workshop on Thin Films for Electronics, Electro-Optics, Energy and Sensors 2022

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Antireflection coatings are vital for reducing loss due to optical reflection in photovoltaic solar cells. A single-layer magnesium fluoride (MgF2) antireflection coating is usually used in thinfilm CIGS solar cells. According to optics, this coating can be effective only for a narrow spectral regime. Further reduction of reflection loss may require an optimal single-layer or multi-layer coating. Hence, we optimized the refractive indices and thicknesses of single- and double-layer antireflection coatings for CIGS solar cells containing a CIGS absorber layer with: (i) homogeneous bandgap, (ii) linearly graded bandgap, or (iii) nonlinearly graded bandgap. A relative enhancement of up to 1.83% is predicted with an optimal double-layer antireflection coating compared to the efficiency with a single-layer antireflection coating.

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