Efficiency Enhancement of Ultra-thin CIGS Solar Cells Using Bandgap Grading and Embedding Au Plasmonic Nanoparticles

Royanian, Sahar; Ziabari, Ali Abdolahzadeh; Yousefi, Reza

doi:10.1007/s11468-020-01138-2

Cited by 28 publications

(8 citation statements)

References 19 publications

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“…Solar-driven bioelectrosynthesis, however, relies on the microbe-material interface. During this process, nonphotosynthetic microorganisms are sensitized by providing them with energy in the form of reducing equivalents from an efficient lightabsorbing inorganic or organic light harvester [27][28][29][30][31][32][33]. The biohybrid system acts as a self-sustaining chemical factory.…”

Section: Box 1 Advantages Of Self-photosensitized Bioinorganic Hybrimentioning

confidence: 99%

“…The biohybrid system acts as a self-sustaining chemical factory. Moreover, the hybrid system is self-regenerating, with low waste generation, and it operates at an efficiency (product yield based on solar energy input) of more than 80% [27][28][29][30][31][32][33]. studied the photoreductive ability of an M. thermoacetica-CdS hybrid under visible light [34].…”

Section: Box 1 Advantages Of Self-photosensitized Bioinorganic Hybrimentioning

confidence: 99%

“…Natural photosynthetic organisms are more selective than chemical catalysts for CO 2 reduction to valuable chemicals, yet they are limited by extremely low efficiency [41,42]. At the same time, using inorganic semiconducting materials, up to 20% solar energy conversion efficiency has been achieved against a maximum theoretical limit of 33.7% [28], yet such semiconducting systems show very low product selectivity during solar-assisted CO 2 reduction [45,46]. Therefore, one strategy to achieve both high selectivity and high conversion Z-scheme mechanism: a tandem, two-light absorber system used in photosynthesis (photosystem I and II); the mechanism is mimicked in artificial photosynthesis.…”

Section: Self-photosensitized Microbial Systemsmentioning

confidence: 99%

“…Due to significant developments in nanotechnology, solar energy conversion efficiency by nanostructured semiconducting materials has reached up to 20% (compared with a theoretical limit of 33.7%), yet the solar-assisted CO 2 -to-chemical selectivity is very low [28]. Solardriven bioelectrosynthesis through the microbe-material interface is an emerging artificial photosynthesis system that combines the strengths of inorganic materials and living microbial cells to achieve a solar energy conversion efficiency of~20% with high selectivity towards CO 2 -to-chemicals [27,[29][30][31][32][33].…”

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confidence: 99%

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Material–Microbe Interfaces for Solar-Driven CO2 Bioelectrosynthesis

Sahoo

Pant

Kumar

et al. 2020

Trends in Biotechnology

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Section: Box 1 Advantages Of Self-photosensitized Bioinorganic Hybrimentioning

confidence: 99%

Section: Box 1 Advantages Of Self-photosensitized Bioinorganic Hybrimentioning

confidence: 99%

Section: Self-photosensitized Microbial Systemsmentioning

confidence: 99%

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confidence: 99%

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Material–Microbe Interfaces for Solar-Driven CO2 Bioelectrosynthesis

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Pant

Kumar

et al. 2020

Trends in Biotechnology

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“…Commercialized flexible solar cells have been developed based on copper indium gallium selenide (CIGS), amorphous silicon germanium (A‐SiGe), and cadmium telluride (CdTe) with energy conversion efficiencies ranging from 10.2% to 23.35%. [ 1–4 ] These solar cells can be used as modules to construct large area solar panels that can be conformably attached to curved surfaces such as roof‐tops, [ 5–7 ] car ceilings, [ 8–10 ] airships, [ 11–13 ] and satellites. [ 14–16 ] To ensure the reliability and robustness of flexible solar cells, they are typically connected with semi‐rigid metallic electrodes and sandwiched between stainless steel backing layers and thick polymer passivation layers.…”

Section: Introductionmentioning

confidence: 99%

Techniques to Achieve Stretchable Photovoltaic Devices from Physically Non‐Stretchable Devices through Chemical Thinning and Stress‐Releasing Adhesive

Niu

Zhao

et al. 2022

Advanced Optical Materials

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to curved surfaces such as roof-tops, [5][6][7] car ceilings, [8][9][10] airships, [11][12][13] and satellites. [14][15][16] To ensure the reliability and robustness of flexible solar cells, they are typically connected with semi-rigid metallic electrodes and sandwiched between stainless steel backing layers and thick polymer passivation layers. As a result, the overall thicknesses of the flexible solar cells are larger than 200 µm, resulting in a declined capability to adapt to biological tissues as well as surfaces with small radii of curvature. As the maximum bending strain is inversely proportional to the thickness of the devices, techniques to thin and repackage the flexible solar cells are highly demanded.Among various mechanical and chemical thinning approaches, [17][18][19] chemical thinning is one of the favorable methods for reducing chip thickness due to the introduction of almost no intrinsic stress, high yield and rapid etch rates. Chemical thinning approaches have yielded multiple ultrathin flexible devices, such as field-effect transistors, [20] silicon integrated circuits, [21] piezoelectric generators [22] and resonators. [23] However, it has seldomly been used to thin the encapsulated photovoltaic devices, and the performance before and after thinning has not yet been systematically studied. In addition to superior flexibility, some scenarios may also require certain levels of stretchability, leading to the development of stretchable solar cells that have been commonly achieved Integration of photovoltaic devices on the deformable surfaces of plants and animals is challenging, as most of the photovoltaic devices possess no stretchability which severely restricts the underneath deformable substrates and causes potential delamination of the devices from the substrates due to large shear stress. Here, techniques to achieve stretchable photovoltaic devices through chemically thinning flexible solar cells and intermediate hardsoft transition layers are proposed. The resulting photovoltaic devices are only 25 µm in thickness with a radius of curvature of 1 mm, offering excellent adaptability to leaves and many curved surfaces. The intermediate layer that is based on silicone adhesive with low modulus provides an interface between non-stretchable photovoltaic devices and deformable substrates, resulting in a stretchability of the overall structures larger than 140%. Key parameters of the photovoltaic device such as open-circuit voltage, short circuit current, fill factor, and conversion efficiency indicate the excellent performance of thinned devices. Potential applications of ultra-thin photovoltaic devices in energy harvesting and light intensity sensing on stretchable substrates are demonstrated, suggesting the practical use of the devices in constructing stretchable self-powered wearable systems for agriculture and healthcare monitoring.

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