Photovoltaic Cells

Bauer, Thomas

doi:10.1007/978-3-642-19965-3_4

Cited by 4 publications

(2 citation statements)

References 86 publications

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“…To select a PV cell bandgap approximately matched to that emission, an arsenide-doped GaSb PV cell with a bandgap energy of ≈0.75 eV (1.65 μm) is proposed. [36,37] Considering that rare-earth emitters have narrow emission peaks in the IR region, Erbiumdoped Aluminum Garnet (ErAG) is chosen as the substrate to achieve selective emission and reasonable tolerance for oxidizing environments. [8,38] The PV cell is assumed to be positioned on the top side of the emitter.…”

Section: Resultsmentioning

confidence: 99%

Design of All‐Oxide Multilayers with High‐Temperature Stability Toward Future Thermophotovoltaic Applications

Song,

He,

Shen

et al. 2024

Adv Materials Inter

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Thermophotovoltaic (TPV) technology converts heat into electricity using thermal radiation. Increasing operating temperature is a highly effective approach to improving the efficiency of TPV systems. However, most reported TPV selective emitters degrade rapidly via. oxidation as operating temperatures increase. To address this issue, replacing nanostructured oxide‐metal films with oxide–oxide films is a promising way to greatly limit oxidation, even under high‐temperature conditions. This study introduces new all‐oxide photonic crystal designs for high‐temperature stable TPV systems, overcoming limitations of metal phases and offering promising material choices. The designs utilize both yttria‐stabilized zirconia (YSZ)/MgO and CeO2/MgO combinations with a multilayer structure and stable high‐quality growth. Both designsexhibit positive optical dielectric constants with tunable reflectivity, measured via optical characterization. Thermal stability testing using in situ heating X‐ray diffraction (XRD) suggests high‐temperature stability (up to 1000 °C) of both YSZ/MgO and CeO2/MgO systems. The results demonstrate a new and promising approach to improve the high‐temperature stability of TPV systems, which can be extended to a wide range of material selection and potential designs.

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Section: Resultsmentioning

confidence: 99%

Design of All‐Oxide Multilayers with High‐Temperature Stability Toward Future Thermophotovoltaic Applications

Song,

He,

Shen

et al. 2024

Adv Materials Inter

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“…The bandgap for silicon solar cells is 1.12 eV, which is close to the optimal value for a single p-n junction. 82 A theoretical limit for the efficiency of a solar cell and its corresponding bandgap which is around 1.34 eV is given by the Shockley-Queisser limit. 83 Many materials have bandgaps around 1 eV like Gallium Arsenide (GaAs), Silicon (Si), Cadmium Telluride (CdTe), perovskites, etc.…”

Section: Applicationsmentioning

confidence: 99%

Review—A Review of 2D Perovskites and Carbon-Based Nanomaterials for Applications in Solar Cells and Photodetectors

Omprakash

Viswesh

Bhat

2021

ECS J. Solid State Sci. Technol.

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Photonic devices such as solar cells and photodetectors that produce electricity play a vital role in our daily life for applications such as fibre optic communication systems, process control, and also in defence related applications. Today, two-dimensional perovskites that belong to the class of emerging materials show promising energy applications. 2D perovskites have been investigated for their exceptional properties such as high optical absorption coefficients, structural diversity and tuneable bandgaps which allow their application as active light absorbing materials to develop solar cells and photodetectors. Carbon-based nanomaterials have also found applications as transparent electrodes, charge acceptors and photosensitive layers in solar cells and photodetectors due to properties such as excellent electrical conductivity, high optical transparency, high surface area and remarkable mechanical strength. There has been growing interest in research on devices using these materials to improve their feasibility, ease of production and performance. With the growing urgency of switching to alternate sources of energy and increasing demands for highly accurate and fast sensors, the development and application of such novel materials are essential. Hence, the current state of understanding of these materials and their applications in the field of solar cells and photodetectors are summarized in this review article.

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A nano-photonic filter for near infrared radiative heater

Wang

Kaur

Elzouka

et al. 2019

Applied Thermal Engineering

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Infrared (IR) radiative heating is a highly desirable method for heating as compared to convective heating due to the unprecedented control of radiative energy transfer, leading to a significant increase in energy efficiency. The greatest challenge however with IR radiative heating is its low penetration depth due to the strong IR absorption of the water content in the substance to be heated. Near IR (NIR) heating can circumvent this problem as it has greater penetration depths. The proposed nano-photonic design for NIR filter (or effective selective emitter) has transmissivity of more than 70% in NIR and less than 15% in both visible and IR wavelengths as opposed to currently available IR heaters, which have high emissivity across all wavelengths. This NIR filter can be applied to any radiative heating source to transform it into a NIR radiative heater. We demonstrate this with a simple prototype by applying it in front of tungsten-based incandescent lamp where significant reduction in white glow (glare) was observed. Potential application of this NIR filter would be in heating in both building and industrial sectors where the ability to provide localized heating could lead to significant energy savings. In addition, NIR selective emitters can be applied for power generation by supplying thermophotovoltaics (TPV) with photons at the right wavelengths, which will increase the efficiency of TPV.

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Photovoltaic Cells

Cited by 4 publications

References 86 publications

Design of All‐Oxide Multilayers with High‐Temperature Stability Toward Future Thermophotovoltaic Applications

Design of All‐Oxide Multilayers with High‐Temperature Stability Toward Future Thermophotovoltaic Applications

Review—A Review of 2D Perovskites and Carbon-Based Nanomaterials for Applications in Solar Cells and Photodetectors

A nano-photonic filter for near infrared radiative heater

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