Performance improvement of III–V compound solar cells using nanomesh electrode and nanostructured antireflection structures

Jian, Li Yi; Wu, Chun; Lee, Hsin Ying; Heo, Junseok; Lee, Ching-Ting

doi:10.1016/j.solener.2019.05.066

Cited by 6 publications

(5 citation statements)

References 16 publications

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“…One potential improvement is to use rectangular openings instead of round holes. These aspects may be effectively realized using contemporary sophisticated thin film technologies, including screen-printing, mask alignment, photolithography, and/or laser scribing. − We conducted an analysis of the open-rectangle configuration of the top part and made a preliminary estimation of the four-terminal MJ PCE. Figure a displays the measurements of the device, whereas Figure b presents the J – V curve data.…”

Section: Discussionmentioning

confidence: 99%

Promising Proposal for Crystalline Silicon Bottom-Based Multijunction Photovoltaic Devices: Apertures in the Top-Cell Surface

Han,

Pham,

Nguyen

et al. 2023

ACS Appl. Energy Mater.

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Crystalline silicon (c-Si)-based multijunction (MJ) photovoltaic (PV) devices, such as III−V/c-Si and/or perovskite/ c-Si MJ devices, are promising for future high-efficiency and lowcost PV systems that convert solar energy into electricity. The typical MJ designs suffer mostly from low current generation in the c-Si bottom subcells because of insufficient light passing from the top to them. We propose an innovative idea for c-Si-based MJ PV devices that includes open-area portions on the top-cell surface to improve light illumination to the bottom subcell and thus its current. Preliminary tests are being performed on four-terminal III−V/c-Si MJ devices, which include commercial flexible film triple-junction GaAs top cells and laboratory-made c-Si heterojunction bottom subcells.The open areas on the top surface are designed to retain the top's significant efficiency while maximizing the bottom's efficiency. As a result, the approximate performance of such a III−V/c-Si MJ structure is 31.8%. Future aspects of the concepts are thoroughly examined. With the accomplishments attained in this effort, there is an opportunity for additional hopeful progress.

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Section: Discussionmentioning

confidence: 99%

Promising Proposal for Crystalline Silicon Bottom-Based Multijunction Photovoltaic Devices: Apertures in the Top-Cell Surface

Han,

Pham,

Nguyen

et al. 2023

ACS Appl. Energy Mater.

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“…Applying an ARC layer suppresses reflection loss from the front surface of the solar cell, increasing the absorption of solar radiation. Double-layer or quarter-wavelength thick coatings made of materials such as ZnO, MgF 2 , and SiO 2 are commonly used [46,[83][84][85][86].…”

Section: Structure Parameters For Solar Cells 341 Anti-reflection Coa...mentioning

confidence: 99%

“…Applying an anti-reflection coating is important to suppress the reflection loss from the front surface of the solar cell device. The reduction in reflection loss is achieved by destructive interference between the two reflected rays, as shown in figure 4 layers [46,[83][84][85][86]. These DLAR layers can lower reflectance at particular spectral wavelength bands (400 nm to 700 nm or 800 nm to 1100 nm) and angles of incidence, while III-V tandem solar cells require AR coating layers in the wide spectral range of 350 nm to 1700 nm.…”

Section: Anti-reflection Coating (Arc)mentioning

confidence: 99%

Advancing efficiency: comprehensive strategies for minimizing optical and electrical losses in group III-V compound tandem solar cells for future photovoltaic technology

Soley,

Verma,

Khatri

et al. 2024

Eng. Res. Express

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Global energy consumption is rising, and fossil resources are dwindling, driving demand for clean, affordable energy. Solar power is the most promising alternative energy source and can meet future energy needs. In terrestrial photovoltaics, low-cost Silicon solar cells dominate. However, as the single junction silicon solar cells are approaching their highest achievable efficiency of 30%, high-efficiency, “group III-V Compound” semiconductor tandem solar cells are being considered as an alternative energy source. The absorption capacity of the wide range of solar radiation photons enables them to achieve high efficiency. However, further improvement in efficiency is constrained due to the various loss mechanisms that occur during the physical process of converting light to electrical energy in “group III-V compound” tandem solar cells. Extensive research is being conducted to develop solution approaches to minimize the loss mechanisms in order to improve efficiency. Although many published review articles have studied the research progress of “group III-V compound” solar cells based on fabrication techniques, applications, status, and challenges, there is no article mentioning a comprehensive and comparative study of strategies employed by researchers to enhance efficiency in “group III-V compounds” tandem solar cells considering loss mechanisms. The present study focuses on discussing the fundamental losses in “group III-V compounds” tandem solar cells and various strategies employed by researchers to reduce optical and electrical losses to improve the efficiency of these devices so that they may be employed in terrestrial applications.

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“…The reflection on the surface of a lens results in diminished optical performance. This can be prevented by attaching an antireflection structure (ARS) [1][2][3][4][5] that can be easily fabricated by ultraviolet nanoimprint lithography (UV-NIL). [6][7][8][9][10] In our previous studies, an optical lens with ARS was fabricated to suppress the surface reflection.…”

Section: Introductionmentioning

confidence: 99%

Anti-fouling and optical characterization of micro-lens array with antireflection structure by UV-NIL

Nakamura

Kurihara

Hokari

et al. 2020

Jpn. J. Appl. Phys.

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Reflectance on an optical lens surface changes its optical characteristics. To overcome this problem, an antireflection structure (ARS) was used to prevent reflection. The resin used in previous studies was not satisfactory for the optical device, and therefore in this study, a newly developed resin was used to fabricate an optical lens with antifouling property. Experimental results showed that the fabricated optical lens exhibited an antifouling property with a higher water contact angle and a lower slip drop angle compared to those of the non-fabricated optical lens. It was also found that there was no change in the shape and reflectance of the lens even after wiping 25 times in a wiping test. Furthermore, the result of the measurement the full width at 1/e 2 of peak indicated that the fabricated lens and the non-ARS lens showed similar optical performance.

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Performance improvement of III–V compound solar cells using nanomesh electrode and nanostructured antireflection structures

Cited by 6 publications

References 16 publications

Promising Proposal for Crystalline Silicon Bottom-Based Multijunction Photovoltaic Devices: Apertures in the Top-Cell Surface

Promising Proposal for Crystalline Silicon Bottom-Based Multijunction Photovoltaic Devices: Apertures in the Top-Cell Surface

Advancing efficiency: comprehensive strategies for minimizing optical and electrical losses in group III-V compound tandem solar cells for future photovoltaic technology

Anti-fouling and optical characterization of micro-lens array with antireflection structure by UV-NIL

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