Design of asymmetrically textured structure for efficient light trapping in building-integrated photovoltaics

Kang, Juhoon; Cho, Changsoon; Lee, Jung‐Yong

doi:10.1016/j.orgel.2015.07.021

Cited by 12 publications

(6 citation statements)

References 15 publications

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“…The inverted pyramid texture on solar cells is estimated to give cell efficiencies of approximately 24% with realistic cell design and material parameters [72]. In this respect, also note the work by Kang et al [73] where they have designed an asymmetrically textured structure for efficient solar radiation trapping in BIPV. …”

Section: Inverted Pyramid Texturingmentioning

confidence: 91%

Building Integrated Photovoltaics: A Concise Description of the Current State of the Art and Possible Research Pathways

Jelle

2015

Energies

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Abstract:Building integrated photovoltaics (BIPV) offer an aesthetical, economical and technical solution to integrate solar cells harvesting solar radiation to produce electricity within the climate envelopes of buildings. Photovoltaic (PV) cells may be mounted above or onto the existing or traditional roofing or wall systems. However, BIPV systems replace the outer building envelope skin, i.e., the climate screen, hence serving simultanously as both a climate screen and a power source generating electricity. Thus, BIPV may provide savings in materials and labor, in addition to reducing the electricity costs. Hence, for the BIPV products, in addition to specific requirements put on the solar cell technology, it is of major importance to have satisfactory or strict requirements of rain tightness and durability, where building physical issues like e.g., heat and moisture transport in the building envelope also have to be considered and accounted for. This work, from both a technological and scientific point of view, summarizes briefly the current state-of-the-art of BIPV, including both BIPV foil, tiles, modules and solar cell glazing products, and addresses possible research pathways for BIPV in the years to come.

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Section: Inverted Pyramid Texturingmentioning

confidence: 91%

Building Integrated Photovoltaics: A Concise Description of the Current State of the Art and Possible Research Pathways

Jelle

2015

Energies

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“…However, although this system is considered as a standard for planar PVs, it is possible to underestimate the photocurrent where a scattering layer is embedded on the topside because scattered light may deviate from the cell area. For that reason, many previous studies 4 , 38 , 40 , 43 , 45 for ray-optical light trapping structures have chosen measurement without apertures, but such measurement issues have been rarely examined.…”

Section: Resultsmentioning

confidence: 99%

“…The performance of the ray-optical schemes was evaluated by a custom-made multiscale simulation, which was used for our previous studies 4 , 40 , 45 , 49 . Two hundred rays with a full spectrum were traced for each unit structure, and the PBC was applied.…”

Section: Methodsmentioning

confidence: 99%

Broadband light trapping strategies for quantum-dot photovoltaic cells (>10%) and their issues with the measurement of photovoltaic characteristics

Cho

Song

Kim

et al. 2017

Sci Rep

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Bandgap tunability and broadband absorption make quantum-dot (QD) photovoltaic cells (PVs) a promising candidate for future solar energy conversion systems. Approaches to improving the electrical properties of the active layer increase efficiency in part. The present study focuses on optical room for enhancement in QD PVs over wide spectrum in the near-infrared (NIR) region. We find that ray-optical light trapping schemes rather than the nanophotonics approach may be the best solution for enhancing broadband QD PVs by suppressing the escape probability of internal photons without spectral dependency. Based on the theoretical study of diverse schemes for various bandgaps, we apply a V-groove structure and a V-groove textured compound parabolic trapper (VCPT) to PbS-based QD PVs along with the measurement issues for PVs with a light scattering layer. The efficiency of the best device is improved from 10.3% to 11.0% (certified to 10.8%) by a V-groove structure despite the possibility of underestimation caused by light scattering in small-area devices (aperture area: 0.0625 cm2). By minimizing such underestimation, even greater enhancements of 13.6% and 15.6% in short circuit current are demonstrated for finger-type devices (0.167 cm2 without aperture) and large-area devices (2.10 cm2 with an aperture of 0.350 cm2), respectively, using VCPT.

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“…Kang et al [59] developed a light-catching system connected to BI-SES based on the PV use, which naturally promotes light exposure during the entire year. The structure is streamlined for the precise scope of the occurrence light by breaking the underlying symmetry.…”

Section: Integrated Photovoltaic Systemsmentioning

confidence: 99%

A literature review on Building Integrated Solar Energy Systems (BI-SES) for façades − photovoltaic, thermal and hybrid systems

Bot

Aelenei

Gomes

et al. 2022

Renew. Energy Environ. Sustain.

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The building façade has a crucial role in acting as the interface between the environment and the indoor ambient, and from an engineering and architecture perspective, in the last years, there has been a growing focus on the strategic development of building façades. In this sense, this work aims to present a literature review for the Building Integrated Solar Energy Systems (BI-SES) for façades, subdivided into three categories: thermal, photovoltaic and hybrid (both thermal and photovoltaic). The methodology used corresponds to a systematic review method. A sample of 75 works was reviewed (16 works on thermal BI-SES, 37 works on photovoltaic BI-SES, 22 works on hybrid BI-SES). This article summarises the works and later classifies them according to the type of study (numerical or experimental), simulation tool, parametric analysis and performance when applied.

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Design of asymmetrically textured structure for efficient light trapping in building-integrated photovoltaics

Cited by 12 publications

References 15 publications

Building Integrated Photovoltaics: A Concise Description of the Current State of the Art and Possible Research Pathways

Building Integrated Photovoltaics: A Concise Description of the Current State of the Art and Possible Research Pathways

Broadband light trapping strategies for quantum-dot photovoltaic cells (>10%) and their issues with the measurement of photovoltaic characteristics

A literature review on Building Integrated Solar Energy Systems (BI-SES) for façades − photovoltaic, thermal and hybrid systems

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