The optical duality of tellurium nanoparticles for broadband solar energy harvesting and efficient photothermal conversion

Ma, Churong; Yan, Jiahao; Huang, Yingcong; Wang, Chengxin; Yang, Guowei

doi:10.1126/sciadv.aas9894

Cited by 170 publications

(138 citation statements)

References 42 publications

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“…Second, these photoexcited electrons and holes can return to the band state and then release the extra energy to improve the local temperature via nonradiative relaxation. [53] It should be noted that their absorption efficiency can only reach 90% or lower in spite of covering full-spectrum solar. For example, typical titanium dioxide (TiO 2 ), with a bandgap of 3.2 eV, can only respond to UV region (<400 nm) and have almost no absorption for visible and near-infrared regions.…”

Section: Semiconductor-based Solar Absorbersmentioning

confidence: 99%

Harnessing Solar‐Driven Photothermal Effect toward the Water–Energy Nexus

et al. 2019

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Producing affordable freshwater has been considered as a great societal challenge, and most conventional desalination technologies are usually accompanied with large energy consumption and thus struggle with the trade‐off between water and energy, i.e., the water–energy nexus. In recent decades, the fast development of state‐of‐the‐art photothermal materials has injected new vitality into the field of freshwater production, which can effectively harness abundant and clean solar energy via the photothermal effect to fulfill the blue dream of low‐energy water purification/harvesting, so as to reconcile the water–energy nexus. Driven by the opportunities offered by photothermal materials, tremendous effort has been made to exploit diverse photothermal‐assisted water purification/harvesting technologies. At this stage, it is imperative and important to review the recent progress and shed light on the future trend in this multidisciplinary field. Here, a brief introduction of the fundamental mechanism and design principle of photothermal materials is presented, and the emerging photothermal applications such as photothermal‐assisted water evaporation, photothermal‐assisted membrane distillation, photothermal‐assisted crude oil cleanup, photothermal‐enhanced photocatalysis, and photothermal‐assisted water harvesting from air are summarized. Finally, the unsolved challenges and future perspectives in this field are emphasized. It is envisioned that this work will help arouse future research efforts to boost the development of solar‐driven low‐energy water purification/harvesting.

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Section: Semiconductor-based Solar Absorbersmentioning

confidence: 99%

Harnessing Solar‐Driven Photothermal Effect toward the Water–Energy Nexus

et al. 2019

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“…In this part, we mainly summarize the recent development of 2D materials for enhancing the absorption and PTCE. The specific strategies for strong absorption mainly includes hybrid design, phase transition, defect modulation, combination of plasmonic and all‐dielectric properties, and introduction of intermediate band (IB) states in alloying materials . To convert the light energy to heat efficiently, the high PTCE of 2D materials is needed.…”

Section: Photothermal Evaporationmentioning

confidence: 99%

“…For the first time, Ma et al reported a Te‐based broadband solar absorber, which can absorb most of the solar light (>85%). It is due to the dual optical property of plasmonic‐like resonance and Mie‐type resonance (Figure a) . Its absorption ability has gone beyond that of Ge nanoparticles, BiInSe foam, and Al nanoparticles .…”

Section: Photothermal Evaporationmentioning

confidence: 99%

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Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges

et al. 2020

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Water shortage and the energy crisis are two major global challenges in this century. The solution for water crisis should be based on a sustainable energy source. Solar‐inspired water purification is an efficient and green technology for tackling the water challenge using abundant and clean solar energy through photothermal evaporation‐induced water production, photoinduced antimicrobial treatment, and photocatalytic degradation of organic contaminants. 2D nanomaterials draw significant attention for their use these three water‐purification methods because of their large surface area, broadband and strong absorption in the solar spectral range, and efficient photothermal and photocatalytic transformation. Herein, the recent development of 2D nanomaterials applied in photothermal evaporation, photoinduced antimicrobial treatment, and photocatalytic capability is comprehensively overviewed. Various strategies in enhancing the light‐absorption and light‐conversion efficiency for different 2D nanomaterials are presented. The challenges and perspectives of these 2D nanomaterials are further discussed for practical water purification. This Review highlights these green energy–driven water‐purification methods based on emerging 2D materials.

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“…A particularly interesting case is that of Te, which presents a plasmonic response ( ε 1 < 0) in the visible and behaves as a lossy HRI material ( n ≈ 5, k > 0) in the near infrared. Thanks to this peculiarity, polydisperse assemblies of Te nanoparticles grown by pulsed laser ablation were shown to efficiently absorb light in the whole solar spectrum, thanks to the excitation of both plasmon resonances and lossy Mie resonances . This was shown to be useful for photothermal conversion.…”

Section: High Refractive Index Mie Resonancesmentioning

confidence: 99%

Spectrally Tailored Light‐Matter Interaction in Lithography‐Free Functional Nanomaterials

Toudert

2019

Physica Status Solidi (a)

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Functional materials with a tailored optical response are needed for applications including coloring, optical instrumentation, data encryption, thermal radiation shaping, energy harvesting, and environmental or biological sensing. A given application requires the material to absorb, transmit, reflect, or scatter light in a suitable way, in a specific, narrow, or broad spectral range selected in the visible or infrared. To achieve the optical response and functionality needed, it is appealing to design nanomaterials with a suitable composition and a properly engineered structure, and this should ideally be realized with high‐throughput and cost‐effective fabrication methods. Herein, the aim is to provide a view on some very recently reported functional nanomaterials showing an optical response tailored for applications by lithography‐free methods. It is illustrated how assembling tailor‐made nanostructures based on the expanding library of optical materials (and their specific wavelength‐dependent dielectric functions) enables harnessing a variety of optical resonances (plasmonic, epsilon near zero, high refractive index Mie, film interference) to tailor the nanomaterials' optical response. It is also shown that building the nanostructures from novel optical materials brings special functionalities, such as a switchable response. Examples of applications are put forward.

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The optical duality of tellurium nanoparticles for broadband solar energy harvesting and efficient photothermal conversion

Abstract: Tellurium nanoparticles are used for broadband solar energy harvesting and efficient photothermal conversion.

Cited by 170 publications

References 42 publications

Harnessing Solar‐Driven Photothermal Effect toward the Water–Energy Nexus

Harnessing Solar‐Driven Photothermal Effect toward the Water–Energy Nexus

Solar‐Inspired Water Purification Based on Emerging 2D Materials: Status and Challenges

Spectrally Tailored Light‐Matter Interaction in Lithography‐Free Functional Nanomaterials

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